LinqRemoteDataAdapter

Overview

The LinqRemoteDataAdapter class is a client-side component used inside all DA LINQ expressions as data provider.

You can select data with help of the LinqRemoteDataAdapter:

var query =
    from c in linqRemoteDataAdapter.GetTable<Client>()
    where (c.id > 3) and (c.phone.Contains("55"))   
    select new {
                 c.id, 
                 c.name, 
                 c.address, 
                 c.phone 
           };

var clients = q.ToList();

or collect changes and send them back to the server side for applying:

// Get list of employees
var q = from x in linqRemoteDataAdapter.GetTable<Worker>() 
        select x;
var list = q.ToList();

// Create new employee
var newEmployee = new Worker();
...
// Insert it
list.Add(newEmployee);

// Register change at the Data Adapter
linqRemoteDataAdapter.InsertRow(newEmployee);

// Edit an existing worker (at index 5 in the list)
list[5].WorkerCity = "Paris"; 
list[5].WorkerZip = "1234";

// Register change at the Data Adapter
linqRemoteDataAdapter.UpdateRow(list[5]);

// Remove an existing customer (at index 9 in the list)
list.RemoveAt(9);

// Register change at the Data Adapter
linqRemoteDataAdapter.DeleteRow(list[5]);

// Applying changes
linqRemoteDataAdapter.ApplyChanges();

You can fond more detailed information about how DA LINQ works in the article DA Linq in Depth (.NET) or in our DA LINQ Sample (.NET).

Location

Reference: RemObjects.DataAbstract.dll
Namespace: RemObjects.DataAbstract.Linq
Ancestry: BaseComponent | BaseDataAdapter | LinqDataAdapter | LinqRemoteDataAdapter

constructor

Creates a new instance of the LinqRemoteDataAdapter class.

constructor

LinqRemoteDataAdapter()

Sub New()

constructor (Boolean) protected (declared in LinqDataAdapter)

constructor(avoidLicenseCheck: Boolean)

LinqRemoteDataAdapter(Boolean avoidLicenseCheck)

Sub New(avoidLicenseCheck As Boolean)

Parameters:

avoidLicenseCheck:

constructor (IContainer)

constructor(container: IContainer)

LinqRemoteDataAdapter(IContainer container)

Sub New(container As IContainer)

Parameters:

container:

constructor (String)

constructor(targetUrl: String)

LinqRemoteDataAdapter(String targetUrl)

Sub New(targetUrl As String)

Parameters:

targetUrl:

AcceptChangesDuringFill (declared in BaseDataAdapter)

Gets or sets a flag indicating whether all target DataTable changes made during data retrieval from the Data Abstract server should be commited. If this property is set to false then some or all data rows in the target DataTable will be marked as updated or inserted after the Fill operation is completed.

The default value is true.

property AcceptChangesDuringFill: Boolean read write;

Boolean AcceptChangesDuringFill { get; set; }

Property AcceptChangesDuringFill() As Boolean

AcceptChangesDuringUpdate (declared in BaseDataAdapter)

Gets or sets a flag indicating whether all DataTable changes should be automatically commited after the update data is sent to the Data Abstract server should be commited. If this property is set to false then data rows in the target DataTable will remain to be marked as updated or inserted after the Update operation is completed.

The default value is true.

property AcceptChangesDuringUpdate: Boolean read write;

Boolean AcceptChangesDuringUpdate { get; set; }

Property AcceptChangesDuringUpdate() As Boolean

ApplyChanges (declared in LinqDataAdapter)

Applies changes made to all RemoteTable instances retrieved via this LinqDataAdapter instance.

method ApplyChanges

void ApplyChanges()

Sub ApplyChanges()

AutoLoadScripts (declared in BaseDataAdapter)

Gets or sets flag indicating whether Business Rules Scripting API scripts should be automaically downloaded from the Data Abstract server when the data is retreved from the server.

property AutoLoadScripts: Boolean read write;

Boolean AutoLoadScripts { get; set; }

Property AutoLoadScripts() As Boolean

BeginApplyChanges (declared in LinqDataAdapter)

Asyncronously applies changes made to all RemoteTable instances retrieved via this LinqDataAdapter instance.

method BeginApplyChanges(cb: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginApplyChanges(AsyncCallback cb, Object state)

Function BeginApplyChanges(cb As AsyncCallback, state As Object) As IAsyncResult

Parameters:

cb: Callback method that will be called once the update process is done.
state: State information about the asynchronous operation.

BeginExecute (declared in LinqDataAdapter)

Asynchronously executes the provided queries. Basically, this is the only way to execute a DA Linq query in a Silverlight application.

This code sample demonstrates how data is retrieved in a Silverlight application (code snippet from the Silverlight sample shipped with DataAbstract for .NET):

var q = (from x in linqRemoteDataAdapter.GetTable<Products>() select x);
IQueryable[] Queries = new IQueryable[] { q };
linqRemoteDataAdapter.BeginExecute(
    Queries,
    delegate(IAsyncResult ar)
    {
        linqRemoteDataAdapter.EndExecute(ar);
        Dispatcher.BeginInvoke(new ProcessSelectProductsResultCb(ProcessSelectProductsResult), q.ToList<Products>());
    },
    null);

method BeginExecute(query: array of IQueryable; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginExecute(IQueryable[] query, AsyncCallback callback, Object state)

Function BeginExecute(query As IQueryable(), callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

query: Array of IQueryable objects representing DA Linq queries.
callback:
state: State information about the asynchronous operation.

BeginFetchData

method BeginFetchData(tableRequest: array of TableRequestInfo; tableNames: array of String; fillMethod: Action<Int32, array of Int32, IDataReader>; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginFetchData(TableRequestInfo[] tableRequest, String[] tableNames, Action<Int32, array of Int32, IDataReader> fillMethod, AsyncCallback callback, Object state)

Function BeginFetchData(tableRequest As TableRequestInfo(), tableNames As String(), fillMethod As Action (Of Int32, Int32(), IDataReader), callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

tableRequest:
tableNames:
fillMethod:
callback:
state:

BeginInit (declared in BaseDataAdapter)

method BeginInit

void BeginInit()

Sub BeginInit()

BeginInternalUpdate (array of Delta, AsyncCallback, Object): IAsyncResult protected

method BeginInternalUpdate(deltas: array of Delta; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginInternalUpdate(Delta[] deltas, AsyncCallback callback, Object state)

Function BeginInternalUpdate(deltas As Delta(), callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

deltas:
callback:
state:

BeginInternalUpdate (array of Delta, AsyncCallback, Object): IAsyncResult protected (declared in BaseDataAdapter)

Starts asynchronous data update operation.

method BeginInternalUpdate(deltas: array of Delta; cb: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginInternalUpdate(Delta[] deltas, AsyncCallback cb, Object state)

Function BeginInternalUpdate(deltas As Delta(), cb As AsyncCallback, state As Object) As IAsyncResult

Parameters:

deltas: Collection of Delta instances that will be send to the Data Abstract server
cb: Callback method that will be called once the asynchronous data update call is completed
state: Asynchronous operation state object

BeginLogin (AsyncCallback, Object): IAsyncResult

Starts the asynchronous user login procedure.

method BeginLogin(callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogin(AsyncCallback callback, Object state)

Function BeginLogin(callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

callback: Callback method that will be called once the login process is done.
state: State information about the asynchronous operation

BeginLogin (String, AsyncCallback, Object): IAsyncResult

method BeginLogin(loginString: String; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogin(String loginString, AsyncCallback callback, Object state)

Function BeginLogin(loginString As String, callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

loginString:
callback:
state:

BeginLogin (String, String, AsyncCallback, Object): IAsyncResult

method BeginLogin(username: String; password: String; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogin(String username, String password, AsyncCallback callback, Object state)

Function BeginLogin(username As String, password As String, callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

username:
password:
callback:
state:

BeginLogout

Starts the asynchronous user logout procedure.

method BeginLogout(callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogout(AsyncCallback callback, Object state)

Function BeginLogout(callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

callback: Callback method that will be called once the logout process is done.
state: State information about the asynchronous operation

CacheSchema (declared in BaseDataAdapter)

Gets or sets flag indicating whether Schema retrieved from the server via the BaseDataAdapter method call should be chached in the BaseDataAdapter property. Setting this property to false can significantly decrease performance.

The default value is true.

property CacheSchema: Boolean read write;

Boolean CacheSchema { get; set; }

Property CacheSchema() As Boolean

CancelChanges (declared in LinqDataAdapter)

Clears changes made to all RemoteTable instances retrieved via this LinqDataAdapter instance.

method CancelChanges

void CancelChanges()

Sub CancelChanges()

CheckAdapterSettings protected

Performs required internal data adapter initialization before issuing a data read or update request.

method CheckAdapterSettings

void CheckAdapterSettings()

Sub CheckAdapterSettings()

CheckFailures protected (declared in BaseDataAdapter)

Composes the data update failure message based on the Delta information returned from the server after the Udate call.

method CheckFailures(aDelta: Delta; aChanges: List<DeltaChange>; aFailureMessage: StringBuilder)

void CheckFailures(Delta aDelta, List<DeltaChange> aChanges, StringBuilder aFailureMessage)

Sub CheckFailures(aDelta As Delta, aChanges As List<DeltaChange>, aFailureMessage As StringBuilder)

Parameters:

aDelta: Delta instance returned from the Data Abstract server
aChanges: Collection that will contain a list of the DeltaChange instances that server marked as ChangeStatus
aFailureMessage: String builder instace that will contain composed data update failure message

ClearAsyncResults (declared in LinqDataAdapter)

method ClearAsyncResults

void ClearAsyncResults()

Sub ClearAsyncResults()

CloneTable<T> (declared in LinqDataAdapter)

method CloneTable<T>(source: T): T

T CloneTable<T>(T source)

Function CloneTable<T>(source As T) As T

Parameters:

source:

CompareBytes (declared in LinqDataAdapter)

class method CompareBytes(a: array of Byte; b: array of Byte): Boolean

static Boolean CompareBytes(Byte[] a, Byte[] b)

Shared Function CompareBytes(a As Byte(), b As Byte()) As Boolean

Parameters:

DataRequestCall

Defines the remote service call that will be executed to fill the dataset with data from the remote server. This property is read-only.

property DataRequestCall: DataRequestRequest read;

DataRequestRequest DataRequestCall { get; }

ReadOnly Property DataRequestCall() As DataRequestRequest

DataServiceName

Gets or sets the name of the remote data service.

The default value is DataService

property DataServiceName: String read write;

String DataServiceName { get; set; }

Property DataServiceName() As String

DataStreamer

Represents the DataStreamer object that is associated with the current LinqRemoteDataAdapter object. It is used for decoding and encoding data that is received from or sent back to the server.

property DataStreamer: DataStreamer read write;

DataStreamer DataStreamer { get; set; }

Property DataStreamer() As DataStreamer

DataUpdateCall

Defines the remote service call that will be executed to update the server data with local changes. This property is read-only.

property DataUpdateCall: DataUpdateRequest read;

DataUpdateRequest DataUpdateCall { get; }

ReadOnly Property DataUpdateCall() As DataUpdateRequest

DeleteRow<T> (declared in LinqDataAdapter)

method DeleteRow<T>(data: T): DeltaChange

DeltaChange DeleteRow<T>(T data)

Function DeleteRow<T>(data As T) As DeltaChange

Parameters:

data:

DynamicSelect (declared in BaseDataAdapter)

Gets or sets a flag indicating whether Data Adapter should perform queries using the Dynamic Select feature

property DynamicSelect: Boolean read write;

Boolean DynamicSelect { get; set; }

Property DynamicSelect() As Boolean

EndApplyChanges (declared in LinqDataAdapter)

Ends an asynchronous remote database update.

method EndApplyChanges(ar: IAsyncResult)

void EndApplyChanges(IAsyncResult ar)

Sub EndApplyChanges(ar As IAsyncResult)

Parameters:

ar: The pending asynchronous data update operation.

EndExecute (declared in LinqDataAdapter)

Ends an asynchronous query request to a data service.

method EndExecute(ar: IAsyncResult)

void EndExecute(IAsyncResult ar)

Sub EndExecute(ar As IAsyncResult)

Parameters:

ar: The pending asynchronous query request.

EndFetchData

method EndFetchData(ar: IAsyncResult)

void EndFetchData(IAsyncResult ar)

Sub EndFetchData(ar As IAsyncResult)

Parameters:

EndInit (declared in BaseDataAdapter)

method EndInit

void EndInit()

Sub EndInit()

EndInternalUpdate protected

method EndInternalUpdate(ar: IAsyncResult)

void EndInternalUpdate(IAsyncResult ar)

Sub EndInternalUpdate(ar As IAsyncResult)

Parameters:

EndLogin

Completes the asynchronous user login procedure.

method EndLogin(ar: IAsyncResult): Boolean

Boolean EndLogin(IAsyncResult ar)

Function EndLogin(ar As IAsyncResult) As Boolean

Parameters:

ar: The pending asynchronous user login operation

EndLogout

Completes the asynchronous user logout procedure.

method EndLogout(ar: IAsyncResult)

void EndLogout(IAsyncResult ar)

Sub EndLogout(ar As IAsyncResult)

Parameters:

ar: The pending asynchronous user logout operation

EnterCriticalSection protected (declared in BaseDataAdapter)

This method is called on entering a method or code region that should be accessed by a single thread only at any given moment of time.

If a thread calls this method while such method is being executed then the calling thread will be paused until the critical code section is released by the blocking thread.

method EnterCriticalSection(status: DataAdapterStatus)

void EnterCriticalSection(DataAdapterStatus status)

Sub EnterCriticalSection(status As DataAdapterStatus)

Parameters:

status: Value that should be assigned to the BaseDataAdapter property until the critical code section is exited

Execute (String): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String): Int32

Int32 Execute(String commandName)

Function Execute(commandName As String) As Int32

Parameters:

commandName:

Execute (String, array of Object, DataParameter): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; inputParameters: array of Object; out outputParameterts: DataParameter): Int32

Int32 Execute(String commandName, Object[] inputParameters, out DataParameter outputParameterts)

Function Execute(commandName As String, inputParameters As Object(), <OutAttribute> ByRef outputParameterts As DataParameter) As Int32

Parameters:

commandName:
inputParameters:
outputParameterts:

Execute (String, array of DataParameter, DataParameter): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; inputParameters: array of DataParameter; out outputParameterts: DataParameter): Int32

Int32 Execute(String commandName, DataParameter[] inputParameters, out DataParameter outputParameterts)

Function Execute(commandName As String, inputParameters As DataParameter(), <OutAttribute> ByRef outputParameterts As DataParameter) As Int32

Parameters:

commandName:
inputParameters:
outputParameterts:

Execute (String, array of Object): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; params inputParameters: array of Object): Int32

Int32 Execute(String commandName, params Object[] inputParameters)

Function Execute(commandName As String, ParamArray inputParameters As Object()) As Int32

Parameters:

commandName:
inputParameters:

Execute (String, array of DataParameter): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; params inputParameters: array of DataParameter): Int32

Int32 Execute(String commandName, params DataParameter[] inputParameters)

Function Execute(commandName As String, ParamArray inputParameters As DataParameter()) As Int32

Parameters:

commandName:
inputParameters:

Execute (array of IQueryable): array of Object (declared in LinqDataAdapter)

method Execute(query: array of IQueryable): array of Object

Object[] Execute(IQueryable[] query)

Function Execute(query As IQueryable()) As Object()

Parameters:

query:

ExitCriticalSection protected (declared in BaseDataAdapter)

This method is called on exiting a method or code region that should be accessed by a single thread only at any given moment of time.

This method sets the BaseDataAdapter property to RemoteAdapterStatus.Idle and then releases the critical code section lock.

method ExitCriticalSection

void ExitCriticalSection()

Sub ExitCriticalSection()

FailureBehavior (declared in BaseDataAdapter)

Gets or sets intended Data Adapter behavior on data update errors.

property FailureBehavior: FailureBehavior read write;

FailureBehavior FailureBehavior { get; set; }

Property FailureBehavior() As FailureBehavior

FetchData (array of TableRequestInfo, array of String, Action<Int32, array of Int32, IDataReader>) protected (declared in LinqDataAdapter)

method FetchData(request: array of TableRequestInfo; tableName: array of String; fillMethod: Action<Int32, array of Int32, IDataReader>)

void FetchData(TableRequestInfo[] request, String[] tableName, Action<Int32, array of Int32, IDataReader> fillMethod)

Sub FetchData(request As TableRequestInfo(), tableName As String(), fillMethod As Action (Of Int32, Int32(), IDataReader))

Parameters:

request:
tableName:
fillMethod:

FetchData (array of TableRequestInfo, array of String, Action<Int32, array of Int32, IDataReader>)

method FetchData(tableRequest: array of TableRequestInfo; tableNames: array of String; fillMethod: Action<Int32, array of Int32, IDataReader>)

void FetchData(TableRequestInfo[] tableRequest, String[] tableNames, Action<Int32, array of Int32, IDataReader> fillMethod)

Sub FetchData(tableRequest As TableRequestInfo(), tableNames As String(), fillMethod As Action (Of Int32, Int32(), IDataReader))

Parameters:

tableRequest:
tableNames:
fillMethod:

FlushSchema (declared in BaseDataAdapter)

Cleans up the Schema cache and sets the BaseDataAdapter to null.

method FlushSchema

void FlushSchema()

Sub FlushSchema()

GeneratedLoginString

This event is raised after the Data Adapter generates the login string while executing the Login method. This event allows to agust the generated login string.

event GeneratedLoginString: LoginStringEventHandler;
delegate:  method GeneratedLoginString(sender: Object; e: LoginStringEventArgs)

delegate LoginStringEventHandler GeneratedLoginString()
delegate:  void GeneratedLoginString(Object sender, LoginStringEventArgs e)

Event GeneratedLoginString As LoginStringEventHandler
delegate:  Sub GeneratedLoginString(sender As Object, e As LoginStringEventArgs)

GeneratingLoginString

This event is raised when the Data Adapter generates the login string while executing the Login method. This event allows to provide a custom login string by stiing the correpronding EventArgs property, overriding the corresponding Data Adapter properties like LoginString, UserName and Password.

event GeneratingLoginString: LoginStringEventHandler;
delegate:  method GeneratingLoginString(sender: Object; e: LoginStringEventArgs)

delegate LoginStringEventHandler GeneratingLoginString()
delegate:  void GeneratingLoginString(Object sender, LoginStringEventArgs e)

Event GeneratingLoginString As LoginStringEventHandler
delegate:  Sub GeneratingLoginString(sender As Object, e As LoginStringEventArgs)

GetPendingDeltas protected (declared in LinqDataAdapter)

method GetPendingDeltas: array of Delta

Delta[] GetPendingDeltas()

Function GetPendingDeltas() As Delta()

GetSchemaOnFirstFill (declared in BaseDataAdapter)

Gets or sets a flag indicating whether Schema should be downloaded from the remote Data Abstract server right before the first data request.

The default value is true.

property GetSchemaOnFirstFill: Boolean read write;

Boolean GetSchemaOnFirstFill { get; set; }

Property GetSchemaOnFirstFill() As Boolean

GetTable<T> (declared in LinqDataAdapter)

method GetTable<T>: RemoteTable<T>

RemoteTable<T> GetTable<T>()

Function GetTable<T>() As RemoteTable<T>

GetTable<T> (array of Object): RemoteTableQuery<T> (declared in LinqDataAdapter)

method GetTable<T>(params parameters: array of Object): RemoteTableQuery<T>

RemoteTableQuery<T> GetTable<T>(params Object[] parameters)

Function GetTable<T>(ParamArray parameters As Object()) As RemoteTableQuery<T>

Parameters:

parameters:

GetTable<T> (array of DataParameter): RemoteTableQuery<T> (declared in LinqDataAdapter)

method GetTable<T>(params parameters: array of DataParameter): RemoteTableQuery<T>

RemoteTableQuery<T> GetTable<T>(params DataParameter[] parameters)

Function GetTable<T>(ParamArray parameters As DataParameter()) As RemoteTableQuery<T>

Parameters:

parameters:

InitScriptProvider (declared in LinqDataAdapter)

method InitScriptProvider: Boolean

Boolean InitScriptProvider()

Function InitScriptProvider() As Boolean

InsertRow<T> (declared in LinqDataAdapter)

method InsertRow<T>(data: T): DeltaChange

DeltaChange InsertRow<T>(T data)

Function InsertRow<T>(data As T) As DeltaChange

Parameters:

data:

IsLoggedIn

Gets a flag indicating whether the last Login method call was successful.

property IsLoggedIn: Boolean read;

Boolean IsLoggedIn { get; }

ReadOnly Property IsLoggedIn() As Boolean

LoadScripts (declared in BaseDataAdapter)

Downloads Business Rules Scripting API scripts from the server.

In its current implementation this method downloads entire Schema from the Data Abstract server.

method LoadScripts

void LoadScripts()

Sub LoadScripts()

Performs user authentication based on the credentials provided by the corresponding Data Adapter properties like LoginString, UserName and Password. This method returns true if the user has been successully authenticated.

method Login: Boolean

Boolean Login()

Function Login() As Boolean

Login (String): Boolean

method Login(loginString: String): Boolean

Boolean Login(String loginString)

Function Login(loginString As String) As Boolean

Parameters:

loginString:

Login (String, String): Boolean

method Login(username: String; password: String): Boolean

Boolean Login(String username, String password)

Function Login(username As String, password As String) As Boolean

Parameters:

username:
password:

LoginServiceName

Gets or sets the name of the remote login service.

The default value is LoginService

property LoginServiceName: String read write;

String LoginServiceName { get; set; }

Property LoginServiceName() As String

LoginString

Gets or sets the semicolon-separated login string.

Setting this property automatically cleans the UserName and Password property values.

property LoginString: String read write;

String LoginString { get; set; }

Property LoginString() As String

Logout

Performs the user logout procedure.

method Logout

void Logout()

Sub Logout()

NewRow<T> (declared in LinqDataAdapter)

method NewRow<T>: T

T NewRow<T>()

Function NewRow<T>() As T

OnApplyChanges (declared in LinqDataAdapter)

This event is fired before any data changes are sent to the DataAbstract server. It can be used to perform data validation, changes logging, etc.

event OnApplyChanges: EventHandler;

delegate EventHandler OnApplyChanges()

Event OnApplyChanges As EventHandler

Password

Gets or sets the user passord used by the Login method.

Setting this property automatically cleans the LoginString property value.

property Password: String read write;

String Password { get; set; }

Property Password() As String

ProcessPendingChangeDeltas protected (declared in LinqDataAdapter)

method ProcessPendingChangeDeltas(serverDeltas: array of Delta; originalDeltaChangeIds: IDictionary<String, array of Int32>)

void ProcessPendingChangeDeltas(Delta[] serverDeltas, IDictionary<String, array of Int32> originalDeltaChangeIds)

Sub ProcessPendingChangeDeltas(serverDeltas As Delta(), originalDeltaChangeIds As IDictionary<String, array of Int32>)

Parameters:

serverDeltas:
originalDeltaChangeIds:

ReadSchema

Reads the Schema if the ReadSchema method is called first or aForceReRead is true. Returns the newly created Schema object or an existing Schema object.

method ReadSchema(forceRefresh: Boolean): Schema

Schema ReadSchema(Boolean forceRefresh)

Function ReadSchema(forceRefresh As Boolean) As Schema

Parameters:

forceRefresh: Flag indicating whether Schema should be downloaded even if the Schema is already cached in the Schema property

ReadStreamerSchema protected

Returns Schema information in Binary format.

method ReadStreamerSchema: Binary

Binary ReadStreamerSchema()

Function ReadStreamerSchema() As Binary

RemoteService

Specifies the RemoteService object that is used to call for fetching and updating data and for retrieving schema information.

property RemoteService: RemoteService read write;

RemoteService RemoteService { get; set; }

Property RemoteService() As RemoteService

RemoveAsyncResult (declared in LinqDataAdapter)

method RemoveAsyncResult(query: IQueryable)

void RemoveAsyncResult(IQueryable query)

Sub RemoveAsyncResult(query As IQueryable)

Parameters:

query:

Schema (declared in BaseDataAdapter)

Gets the Schema currently cached by the Data Adapter instance

property Schema: Schema read;

Schema Schema { get; }

ReadOnly Property Schema() As Schema

SchemaCall

Defines the remote service call that will be executed to fetch Schema information from the remote server.

property SchemaCall: SchemaRequest read;

SchemaRequest SchemaCall { get; }

ReadOnly Property SchemaCall() As SchemaRequest

ScriptProvider (declared in BaseDataAdapter)

Gets or sets Business Rules Scripting API provided that will be used to execute client-side scripts.

property ScriptProvider: IScriptProvider read write;

IScriptProvider ScriptProvider { get; set; }

Property ScriptProvider() As IScriptProvider

SetupDefaultRequests

Sets or resets all parameters to the default settings for the SchemaCall, DataRequestCall and DataUpdateCall properties. This is necessary when accessing a standard Data Abstract server implementing the IDataAbstractService.

method SetupDefaultRequests

void SetupDefaultRequests()

Sub SetupDefaultRequests()

Status (declared in BaseDataAdapter)

Gets current status of the Data Adapter

property Status: DataAdapterStatus read;

DataAdapterStatus Status { get; }

ReadOnly Property Status() As DataAdapterStatus

TargetUrl

Gets or sets the remote server Url.

Setting this property automatically cleans the RemoteService property value.

property TargetUrl: String read write;

String TargetUrl { get; set; }

Property TargetUrl() As String

ThrowFailures protected (declared in LinqDataAdapter)

This method is called at the end of the ApplyChanges method. It throws a DAUpdatesFailedException if the provided aChanges list is not empty (which means that some DeltaChanges were not processed successfully) and the FailureBehavior property is set to FailureBehavior.RaiseException or FailureBehavior.Both.

method ThrowFailures(changes: List<DeltaChange>; failureMessage: String)

void ThrowFailures(List<DeltaChange> changes, String failureMessage)

Sub ThrowFailures(changes As List<DeltaChange>, failureMessage As String)

Parameters:

changes:
failureMessage:

TriggerApplyChanges protected (declared in LinqDataAdapter)

method TriggerApplyChanges

void TriggerApplyChanges()

Sub TriggerApplyChanges()

TriggerGeneratedLoginString protected

Raises the GeneratedLoginString event.

method TriggerGeneratedLoginString(e: LoginStringEventArgs)

void TriggerGeneratedLoginString(LoginStringEventArgs e)

Sub TriggerGeneratedLoginString(e As LoginStringEventArgs)

Parameters:

e: Event arguments

TriggerGeneratingLoginString protected

Raises the GeneratingLoginString event.

method TriggerGeneratingLoginString(e: LoginStringEventArgs)

void TriggerGeneratingLoginString(LoginStringEventArgs e)

Sub TriggerGeneratingLoginString(e As LoginStringEventArgs)

Parameters:

e: Event arguments

UpdateRow<T> (T): DeltaChange (declared in LinqDataAdapter)

method UpdateRow<T>(data: T): DeltaChange

DeltaChange UpdateRow<T>(T data)

Function UpdateRow<T>(data As T) As DeltaChange

Parameters:

data:

UpdateRow<T> (T, T): DeltaChange (declared in LinqDataAdapter)

method UpdateRow<T>(originalData: T; newData: T): DeltaChange

DeltaChange UpdateRow<T>(T originalData, T newData)

Function UpdateRow<T>(originalData As T, newData As T) As DeltaChange

Parameters:

originalData:
newData:

UseBindableClass (declared in LinqDataAdapter)

Defines which type will be used as the base type for query result representation: the ordinary System.Collections.Generic.List class (which will be used if this property is set to false) or the more advanced DABindingList class.

The default value of this property is true.

Yuo can set this property to false if you just want to retrieve data, but do not need the advanced binding capabilities of the DABindingList class.

property UseBindableClass: Boolean read write;

Boolean UseBindableClass { get; set; }

Property UseBindableClass() As Boolean

UseDynamicWhere (declared in LinqDataAdapter)

Defines how the data will be retrieved from the DataAbstract server. If this property is set to true, Dynamic Where will be used. If set to false, the more advanced DA SQL approach will be used (note that this approach is not compatible with Delphi-based DataAbstract servers).

The default value of this property is true for assemblies for the full .NET and the .NET Compact Frameworks, false for the Silverlight version of DataAbstract for .NET.

Note: If your client application is intended to be used only with .NET-based Data Abstract servers, the recommended value of this property is false, because some Linq operators cannot be represented with Dynamic Where conditions.

property UseDynamicWhere: Boolean read write;

Boolean UseDynamicWhere { get; set; }

Property UseDynamicWhere() As Boolean

UserName

Gets or sets the user name used by the Login method.

Setting this property automatically cleans the LoginString property value.

property UserName: String read write;

String UserName { get; set; }

Property UserName() As String

AcceptChangesDuringFill (declared in BaseDataAdapter)

The default value is true.

property AcceptChangesDuringFill: Boolean read write;

Boolean AcceptChangesDuringFill { get; set; }

Property AcceptChangesDuringFill() As Boolean

AcceptChangesDuringUpdate (declared in BaseDataAdapter)

The default value is true.

property AcceptChangesDuringUpdate: Boolean read write;

Boolean AcceptChangesDuringUpdate { get; set; }

Property AcceptChangesDuringUpdate() As Boolean

AutoLoadScripts (declared in BaseDataAdapter)

Gets or sets flag indicating whether Business Rules Scripting API scripts should be automaically downloaded from the Data Abstract server when the data is retreved from the server.

property AutoLoadScripts: Boolean read write;

Boolean AutoLoadScripts { get; set; }

Property AutoLoadScripts() As Boolean

CacheSchema (declared in BaseDataAdapter)

The default value is true.

property CacheSchema: Boolean read write;

Boolean CacheSchema { get; set; }

Property CacheSchema() As Boolean

DataRequestCall

Defines the remote service call that will be executed to fill the dataset with data from the remote server. This property is read-only.

property DataRequestCall: DataRequestRequest read;

DataRequestRequest DataRequestCall { get; }

ReadOnly Property DataRequestCall() As DataRequestRequest

DataServiceName

Gets or sets the name of the remote data service.

The default value is DataService

property DataServiceName: String read write;

String DataServiceName { get; set; }

Property DataServiceName() As String

DataStreamer

Represents the DataStreamer object that is associated with the current LinqRemoteDataAdapter object. It is used for decoding and encoding data that is received from or sent back to the server.

property DataStreamer: DataStreamer read write;

DataStreamer DataStreamer { get; set; }

Property DataStreamer() As DataStreamer

DataUpdateCall

Defines the remote service call that will be executed to update the server data with local changes. This property is read-only.

property DataUpdateCall: DataUpdateRequest read;

DataUpdateRequest DataUpdateCall { get; }

ReadOnly Property DataUpdateCall() As DataUpdateRequest

DynamicSelect (declared in BaseDataAdapter)

Gets or sets a flag indicating whether Data Adapter should perform queries using the Dynamic Select feature

property DynamicSelect: Boolean read write;

Boolean DynamicSelect { get; set; }

Property DynamicSelect() As Boolean

FailureBehavior (declared in BaseDataAdapter)

Gets or sets intended Data Adapter behavior on data update errors.

property FailureBehavior: FailureBehavior read write;

FailureBehavior FailureBehavior { get; set; }

Property FailureBehavior() As FailureBehavior

GetSchemaOnFirstFill (declared in BaseDataAdapter)

Gets or sets a flag indicating whether Schema should be downloaded from the remote Data Abstract server right before the first data request.

The default value is true.

property GetSchemaOnFirstFill: Boolean read write;

Boolean GetSchemaOnFirstFill { get; set; }

Property GetSchemaOnFirstFill() As Boolean

IsLoggedIn

Gets a flag indicating whether the last Login method call was successful.

property IsLoggedIn: Boolean read;

Boolean IsLoggedIn { get; }

ReadOnly Property IsLoggedIn() As Boolean

LoginServiceName

Gets or sets the name of the remote login service.

The default value is LoginService

property LoginServiceName: String read write;

String LoginServiceName { get; set; }

Property LoginServiceName() As String

LoginString

Gets or sets the semicolon-separated login string.

Setting this property automatically cleans the UserName and Password property values.

property LoginString: String read write;

String LoginString { get; set; }

Property LoginString() As String

Password

Gets or sets the user passord used by the Login method.

Setting this property automatically cleans the LoginString property value.

property Password: String read write;

String Password { get; set; }

Property Password() As String

RemoteService

Specifies the RemoteService object that is used to call for fetching and updating data and for retrieving schema information.

property RemoteService: RemoteService read write;

RemoteService RemoteService { get; set; }

Property RemoteService() As RemoteService

Schema (declared in BaseDataAdapter)

Gets the Schema currently cached by the Data Adapter instance

property Schema: Schema read;

Schema Schema { get; }

ReadOnly Property Schema() As Schema

SchemaCall

Defines the remote service call that will be executed to fetch Schema information from the remote server.

property SchemaCall: SchemaRequest read;

SchemaRequest SchemaCall { get; }

ReadOnly Property SchemaCall() As SchemaRequest

ScriptProvider (declared in BaseDataAdapter)

Gets or sets Business Rules Scripting API provided that will be used to execute client-side scripts.

property ScriptProvider: IScriptProvider read write;

IScriptProvider ScriptProvider { get; set; }

Property ScriptProvider() As IScriptProvider

Status (declared in BaseDataAdapter)

Gets current status of the Data Adapter

property Status: DataAdapterStatus read;

DataAdapterStatus Status { get; }

ReadOnly Property Status() As DataAdapterStatus

TargetUrl

Gets or sets the remote server Url.

Setting this property automatically cleans the RemoteService property value.

property TargetUrl: String read write;

String TargetUrl { get; set; }

Property TargetUrl() As String

UseBindableClass (declared in LinqDataAdapter)

The default value of this property is true.

Yuo can set this property to false if you just want to retrieve data, but do not need the advanced binding capabilities of the DABindingList class.

property UseBindableClass: Boolean read write;

Boolean UseBindableClass { get; set; }

Property UseBindableClass() As Boolean

UseDynamicWhere (declared in LinqDataAdapter)

The default value of this property is true for assemblies for the full .NET and the .NET Compact Frameworks, false for the Silverlight version of DataAbstract for .NET.

property UseDynamicWhere: Boolean read write;

Boolean UseDynamicWhere { get; set; }

Property UseDynamicWhere() As Boolean

UserName

Gets or sets the user name used by the Login method.

Setting this property automatically cleans the LoginString property value.

property UserName: String read write;

String UserName { get; set; }

Property UserName() As String

CompareBytes (declared in LinqDataAdapter)

class method CompareBytes(a: array of Byte; b: array of Byte): Boolean

static Boolean CompareBytes(Byte[] a, Byte[] b)

Shared Function CompareBytes(a As Byte(), b As Byte()) As Boolean

Parameters:

constructor

Creates a new instance of the LinqRemoteDataAdapter class.

constructor

LinqRemoteDataAdapter()

Sub New()

constructor (Boolean) protected (declared in LinqDataAdapter)

constructor(avoidLicenseCheck: Boolean)

LinqRemoteDataAdapter(Boolean avoidLicenseCheck)

Sub New(avoidLicenseCheck As Boolean)

Parameters:

avoidLicenseCheck:

constructor (IContainer)

constructor(container: IContainer)

LinqRemoteDataAdapter(IContainer container)

Sub New(container As IContainer)

Parameters:

container:

constructor (String)

constructor(targetUrl: String)

LinqRemoteDataAdapter(String targetUrl)

Sub New(targetUrl As String)

Parameters:

targetUrl:

ApplyChanges (declared in LinqDataAdapter)

Applies changes made to all RemoteTable instances retrieved via this LinqDataAdapter instance.

method ApplyChanges

void ApplyChanges()

Sub ApplyChanges()

BeginApplyChanges (declared in LinqDataAdapter)

Asyncronously applies changes made to all RemoteTable instances retrieved via this LinqDataAdapter instance.

method BeginApplyChanges(cb: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginApplyChanges(AsyncCallback cb, Object state)

Function BeginApplyChanges(cb As AsyncCallback, state As Object) As IAsyncResult

Parameters:

cb: Callback method that will be called once the update process is done.
state: State information about the asynchronous operation.

BeginExecute (declared in LinqDataAdapter)

Asynchronously executes the provided queries. Basically, this is the only way to execute a DA Linq query in a Silverlight application.

This code sample demonstrates how data is retrieved in a Silverlight application (code snippet from the Silverlight sample shipped with DataAbstract for .NET):

var q = (from x in linqRemoteDataAdapter.GetTable<Products>() select x);
IQueryable[] Queries = new IQueryable[] { q };
linqRemoteDataAdapter.BeginExecute(
    Queries,
    delegate(IAsyncResult ar)
    {
        linqRemoteDataAdapter.EndExecute(ar);
        Dispatcher.BeginInvoke(new ProcessSelectProductsResultCb(ProcessSelectProductsResult), q.ToList<Products>());
    },
    null);

method BeginExecute(query: array of IQueryable; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginExecute(IQueryable[] query, AsyncCallback callback, Object state)

Function BeginExecute(query As IQueryable(), callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

query: Array of IQueryable objects representing DA Linq queries.
callback:
state: State information about the asynchronous operation.

BeginFetchData

method BeginFetchData(tableRequest: array of TableRequestInfo; tableNames: array of String; fillMethod: Action<Int32, array of Int32, IDataReader>; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginFetchData(TableRequestInfo[] tableRequest, String[] tableNames, Action<Int32, array of Int32, IDataReader> fillMethod, AsyncCallback callback, Object state)

Function BeginFetchData(tableRequest As TableRequestInfo(), tableNames As String(), fillMethod As Action (Of Int32, Int32(), IDataReader), callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

tableRequest:
tableNames:
fillMethod:
callback:
state:

BeginInit (declared in BaseDataAdapter)

method BeginInit

void BeginInit()

Sub BeginInit()

BeginInternalUpdate (array of Delta, AsyncCallback, Object): IAsyncResult protected

method BeginInternalUpdate(deltas: array of Delta; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginInternalUpdate(Delta[] deltas, AsyncCallback callback, Object state)

Function BeginInternalUpdate(deltas As Delta(), callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

deltas:
callback:
state:

BeginInternalUpdate (array of Delta, AsyncCallback, Object): IAsyncResult protected (declared in BaseDataAdapter)

Starts asynchronous data update operation.

method BeginInternalUpdate(deltas: array of Delta; cb: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginInternalUpdate(Delta[] deltas, AsyncCallback cb, Object state)

Function BeginInternalUpdate(deltas As Delta(), cb As AsyncCallback, state As Object) As IAsyncResult

Parameters:

deltas: Collection of Delta instances that will be send to the Data Abstract server
cb: Callback method that will be called once the asynchronous data update call is completed
state: Asynchronous operation state object

BeginLogin (AsyncCallback, Object): IAsyncResult

Starts the asynchronous user login procedure.

method BeginLogin(callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogin(AsyncCallback callback, Object state)

Function BeginLogin(callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

callback: Callback method that will be called once the login process is done.
state: State information about the asynchronous operation

BeginLogin (String, AsyncCallback, Object): IAsyncResult

method BeginLogin(loginString: String; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogin(String loginString, AsyncCallback callback, Object state)

Function BeginLogin(loginString As String, callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

loginString:
callback:
state:

BeginLogin (String, String, AsyncCallback, Object): IAsyncResult

method BeginLogin(username: String; password: String; callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogin(String username, String password, AsyncCallback callback, Object state)

Function BeginLogin(username As String, password As String, callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

username:
password:
callback:
state:

BeginLogout

Starts the asynchronous user logout procedure.

method BeginLogout(callback: AsyncCallback; state: Object): IAsyncResult

IAsyncResult BeginLogout(AsyncCallback callback, Object state)

Function BeginLogout(callback As AsyncCallback, state As Object) As IAsyncResult

Parameters:

callback: Callback method that will be called once the logout process is done.
state: State information about the asynchronous operation

CancelChanges (declared in LinqDataAdapter)

Clears changes made to all RemoteTable instances retrieved via this LinqDataAdapter instance.

method CancelChanges

void CancelChanges()

Sub CancelChanges()

CheckAdapterSettings protected

Performs required internal data adapter initialization before issuing a data read or update request.

method CheckAdapterSettings

void CheckAdapterSettings()

Sub CheckAdapterSettings()

CheckFailures protected (declared in BaseDataAdapter)

Composes the data update failure message based on the Delta information returned from the server after the Udate call.

method CheckFailures(aDelta: Delta; aChanges: List<DeltaChange>; aFailureMessage: StringBuilder)

void CheckFailures(Delta aDelta, List<DeltaChange> aChanges, StringBuilder aFailureMessage)

Sub CheckFailures(aDelta As Delta, aChanges As List<DeltaChange>, aFailureMessage As StringBuilder)

Parameters:

aDelta: Delta instance returned from the Data Abstract server
aChanges: Collection that will contain a list of the DeltaChange instances that server marked as ChangeStatus
aFailureMessage: String builder instace that will contain composed data update failure message

ClearAsyncResults (declared in LinqDataAdapter)

method ClearAsyncResults

void ClearAsyncResults()

Sub ClearAsyncResults()

CloneTable<T> (declared in LinqDataAdapter)

method CloneTable<T>(source: T): T

T CloneTable<T>(T source)

Function CloneTable<T>(source As T) As T

Parameters:

source:

DeleteRow<T> (declared in LinqDataAdapter)

method DeleteRow<T>(data: T): DeltaChange

DeltaChange DeleteRow<T>(T data)

Function DeleteRow<T>(data As T) As DeltaChange

Parameters:

data:

EndApplyChanges (declared in LinqDataAdapter)

Ends an asynchronous remote database update.

method EndApplyChanges(ar: IAsyncResult)

void EndApplyChanges(IAsyncResult ar)

Sub EndApplyChanges(ar As IAsyncResult)

Parameters:

ar: The pending asynchronous data update operation.

EndExecute (declared in LinqDataAdapter)

Ends an asynchronous query request to a data service.

method EndExecute(ar: IAsyncResult)

void EndExecute(IAsyncResult ar)

Sub EndExecute(ar As IAsyncResult)

Parameters:

ar: The pending asynchronous query request.

EndFetchData

method EndFetchData(ar: IAsyncResult)

void EndFetchData(IAsyncResult ar)

Sub EndFetchData(ar As IAsyncResult)

Parameters:

EndInit (declared in BaseDataAdapter)

method EndInit

void EndInit()

Sub EndInit()

EndInternalUpdate protected

method EndInternalUpdate(ar: IAsyncResult)

void EndInternalUpdate(IAsyncResult ar)

Sub EndInternalUpdate(ar As IAsyncResult)

Parameters:

EndLogin

Completes the asynchronous user login procedure.

method EndLogin(ar: IAsyncResult): Boolean

Boolean EndLogin(IAsyncResult ar)

Function EndLogin(ar As IAsyncResult) As Boolean

Parameters:

ar: The pending asynchronous user login operation

EndLogout

Completes the asynchronous user logout procedure.

method EndLogout(ar: IAsyncResult)

void EndLogout(IAsyncResult ar)

Sub EndLogout(ar As IAsyncResult)

Parameters:

ar: The pending asynchronous user logout operation

EnterCriticalSection protected (declared in BaseDataAdapter)

This method is called on entering a method or code region that should be accessed by a single thread only at any given moment of time.

If a thread calls this method while such method is being executed then the calling thread will be paused until the critical code section is released by the blocking thread.

method EnterCriticalSection(status: DataAdapterStatus)

void EnterCriticalSection(DataAdapterStatus status)

Sub EnterCriticalSection(status As DataAdapterStatus)

Parameters:

status: Value that should be assigned to the BaseDataAdapter property until the critical code section is exited

Execute (String): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String): Int32

Int32 Execute(String commandName)

Function Execute(commandName As String) As Int32

Parameters:

commandName:

Execute (String, array of Object, DataParameter): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; inputParameters: array of Object; out outputParameterts: DataParameter): Int32

Int32 Execute(String commandName, Object[] inputParameters, out DataParameter outputParameterts)

Function Execute(commandName As String, inputParameters As Object(), <OutAttribute> ByRef outputParameterts As DataParameter) As Int32

Parameters:

commandName:
inputParameters:
outputParameterts:

Execute (String, array of DataParameter, DataParameter): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; inputParameters: array of DataParameter; out outputParameterts: DataParameter): Int32

Int32 Execute(String commandName, DataParameter[] inputParameters, out DataParameter outputParameterts)

Function Execute(commandName As String, inputParameters As DataParameter(), <OutAttribute> ByRef outputParameterts As DataParameter) As Int32

Parameters:

commandName:
inputParameters:
outputParameterts:

Execute (String, array of Object): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; params inputParameters: array of Object): Int32

Int32 Execute(String commandName, params Object[] inputParameters)

Function Execute(commandName As String, ParamArray inputParameters As Object()) As Int32

Parameters:

commandName:
inputParameters:

Execute (String, array of DataParameter): Int32 (declared in BaseDataAdapter)

method Execute(commandName: String; params inputParameters: array of DataParameter): Int32

Int32 Execute(String commandName, params DataParameter[] inputParameters)

Function Execute(commandName As String, ParamArray inputParameters As DataParameter()) As Int32

Parameters:

commandName:
inputParameters:

Execute (array of IQueryable): array of Object (declared in LinqDataAdapter)

method Execute(query: array of IQueryable): array of Object

Object[] Execute(IQueryable[] query)

Function Execute(query As IQueryable()) As Object()

Parameters:

query:

ExitCriticalSection protected (declared in BaseDataAdapter)

This method is called on exiting a method or code region that should be accessed by a single thread only at any given moment of time.

This method sets the BaseDataAdapter property to RemoteAdapterStatus.Idle and then releases the critical code section lock.

method ExitCriticalSection

void ExitCriticalSection()

Sub ExitCriticalSection()

FetchData (array of TableRequestInfo, array of String, Action<Int32, array of Int32, IDataReader>) protected (declared in LinqDataAdapter)

method FetchData(request: array of TableRequestInfo; tableName: array of String; fillMethod: Action<Int32, array of Int32, IDataReader>)

void FetchData(TableRequestInfo[] request, String[] tableName, Action<Int32, array of Int32, IDataReader> fillMethod)

Sub FetchData(request As TableRequestInfo(), tableName As String(), fillMethod As Action (Of Int32, Int32(), IDataReader))

Parameters:

request:
tableName:
fillMethod:

FetchData (array of TableRequestInfo, array of String, Action<Int32, array of Int32, IDataReader>)

method FetchData(tableRequest: array of TableRequestInfo; tableNames: array of String; fillMethod: Action<Int32, array of Int32, IDataReader>)

void FetchData(TableRequestInfo[] tableRequest, String[] tableNames, Action<Int32, array of Int32, IDataReader> fillMethod)

Sub FetchData(tableRequest As TableRequestInfo(), tableNames As String(), fillMethod As Action (Of Int32, Int32(), IDataReader))

Parameters:

tableRequest:
tableNames:
fillMethod:

FlushSchema (declared in BaseDataAdapter)

Cleans up the Schema cache and sets the BaseDataAdapter to null.

method FlushSchema

void FlushSchema()

Sub FlushSchema()

GetPendingDeltas protected (declared in LinqDataAdapter)

method GetPendingDeltas: array of Delta

Delta[] GetPendingDeltas()

Function GetPendingDeltas() As Delta()

GetTable<T> (declared in LinqDataAdapter)

method GetTable<T>: RemoteTable<T>

RemoteTable<T> GetTable<T>()

Function GetTable<T>() As RemoteTable<T>

GetTable<T> (array of Object): RemoteTableQuery<T> (declared in LinqDataAdapter)

method GetTable<T>(params parameters: array of Object): RemoteTableQuery<T>

RemoteTableQuery<T> GetTable<T>(params Object[] parameters)

Function GetTable<T>(ParamArray parameters As Object()) As RemoteTableQuery<T>

Parameters:

parameters:

GetTable<T> (array of DataParameter): RemoteTableQuery<T> (declared in LinqDataAdapter)

method GetTable<T>(params parameters: array of DataParameter): RemoteTableQuery<T>

RemoteTableQuery<T> GetTable<T>(params DataParameter[] parameters)

Function GetTable<T>(ParamArray parameters As DataParameter()) As RemoteTableQuery<T>

Parameters:

parameters:

InitScriptProvider (declared in LinqDataAdapter)

method InitScriptProvider: Boolean

Boolean InitScriptProvider()

Function InitScriptProvider() As Boolean

InsertRow<T> (declared in LinqDataAdapter)

method InsertRow<T>(data: T): DeltaChange

DeltaChange InsertRow<T>(T data)

Function InsertRow<T>(data As T) As DeltaChange

Parameters:

data:

LoadScripts (declared in BaseDataAdapter)

Downloads Business Rules Scripting API scripts from the server.

In its current implementation this method downloads entire Schema from the Data Abstract server.

method LoadScripts

void LoadScripts()

Sub LoadScripts()

method Login: Boolean

Boolean Login()

Function Login() As Boolean

Login (String): Boolean

method Login(loginString: String): Boolean

Boolean Login(String loginString)

Function Login(loginString As String) As Boolean

Parameters:

loginString:

Login (String, String): Boolean

method Login(username: String; password: String): Boolean

Boolean Login(String username, String password)

Function Login(username As String, password As String) As Boolean

Parameters:

username:
password:

Logout

Performs the user logout procedure.

method Logout

void Logout()

Sub Logout()

NewRow<T> (declared in LinqDataAdapter)

method NewRow<T>: T

T NewRow<T>()

Function NewRow<T>() As T

ProcessPendingChangeDeltas protected (declared in LinqDataAdapter)

method ProcessPendingChangeDeltas(serverDeltas: array of Delta; originalDeltaChangeIds: IDictionary<String, array of Int32>)

void ProcessPendingChangeDeltas(Delta[] serverDeltas, IDictionary<String, array of Int32> originalDeltaChangeIds)

Sub ProcessPendingChangeDeltas(serverDeltas As Delta(), originalDeltaChangeIds As IDictionary<String, array of Int32>)

Parameters:

serverDeltas:
originalDeltaChangeIds:

ReadSchema

Reads the Schema if the ReadSchema method is called first or aForceReRead is true. Returns the newly created Schema object or an existing Schema object.

method ReadSchema(forceRefresh: Boolean): Schema

Schema ReadSchema(Boolean forceRefresh)

Function ReadSchema(forceRefresh As Boolean) As Schema

Parameters:

forceRefresh: Flag indicating whether Schema should be downloaded even if the Schema is already cached in the Schema property

ReadStreamerSchema protected

Returns Schema information in Binary format.

method ReadStreamerSchema: Binary

Binary ReadStreamerSchema()

Function ReadStreamerSchema() As Binary

RemoveAsyncResult (declared in LinqDataAdapter)

method RemoveAsyncResult(query: IQueryable)

void RemoveAsyncResult(IQueryable query)

Sub RemoveAsyncResult(query As IQueryable)

Parameters:

query:

SetupDefaultRequests

method SetupDefaultRequests

void SetupDefaultRequests()

Sub SetupDefaultRequests()

ThrowFailures protected (declared in LinqDataAdapter)

method ThrowFailures(changes: List<DeltaChange>; failureMessage: String)

void ThrowFailures(List<DeltaChange> changes, String failureMessage)

Sub ThrowFailures(changes As List<DeltaChange>, failureMessage As String)

Parameters:

changes:
failureMessage:

TriggerApplyChanges protected (declared in LinqDataAdapter)

method TriggerApplyChanges

void TriggerApplyChanges()

Sub TriggerApplyChanges()

TriggerGeneratedLoginString protected

Raises the GeneratedLoginString event.

method TriggerGeneratedLoginString(e: LoginStringEventArgs)

void TriggerGeneratedLoginString(LoginStringEventArgs e)

Sub TriggerGeneratedLoginString(e As LoginStringEventArgs)

Parameters:

e: Event arguments

TriggerGeneratingLoginString protected

Raises the GeneratingLoginString event.

method TriggerGeneratingLoginString(e: LoginStringEventArgs)

void TriggerGeneratingLoginString(LoginStringEventArgs e)

Sub TriggerGeneratingLoginString(e As LoginStringEventArgs)

Parameters:

e: Event arguments

UpdateRow<T> (T): DeltaChange (declared in LinqDataAdapter)

method UpdateRow<T>(data: T): DeltaChange

DeltaChange UpdateRow<T>(T data)

Function UpdateRow<T>(data As T) As DeltaChange

Parameters:

data:

UpdateRow<T> (T, T): DeltaChange (declared in LinqDataAdapter)

method UpdateRow<T>(originalData: T; newData: T): DeltaChange

DeltaChange UpdateRow<T>(T originalData, T newData)

Function UpdateRow<T>(originalData As T, newData As T) As DeltaChange

Parameters:

originalData:
newData:

GeneratedLoginString

This event is raised after the Data Adapter generates the login string while executing the Login method. This event allows to agust the generated login string.

event GeneratedLoginString: LoginStringEventHandler;
delegate:  method GeneratedLoginString(sender: Object; e: LoginStringEventArgs)

delegate LoginStringEventHandler GeneratedLoginString()
delegate:  void GeneratedLoginString(Object sender, LoginStringEventArgs e)

Event GeneratedLoginString As LoginStringEventHandler
delegate:  Sub GeneratedLoginString(sender As Object, e As LoginStringEventArgs)

GeneratingLoginString

event GeneratingLoginString: LoginStringEventHandler;
delegate:  method GeneratingLoginString(sender: Object; e: LoginStringEventArgs)

delegate LoginStringEventHandler GeneratingLoginString()
delegate:  void GeneratingLoginString(Object sender, LoginStringEventArgs e)

Event GeneratingLoginString As LoginStringEventHandler
delegate:  Sub GeneratingLoginString(sender As Object, e As LoginStringEventArgs)

OnApplyChanges (declared in LinqDataAdapter)

This event is fired before any data changes are sent to the DataAbstract server. It can be used to perform data validation, changes logging, etc.

event OnApplyChanges: EventHandler;

delegate EventHandler OnApplyChanges()

Event OnApplyChanges As EventHandler

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