TDAUnionDataTableCollection

 

Creates a new instance.

constructor Create(aOwner: TComponent)

Parameters:

• aOwner: owner

---

Initializes the collection with the supplied parameters.

constructor Create(AOwner: TPersistent; ItemClass: TCollectionItemClass)

Parameters:

• AOwner: owner
• ItemClass: item class

---

Returns the inherited Add method and returns the result as TDAUnionDataTable.

function Add: TDAUnionDataTable

---

Inserts a copy of an item and names it "Copy nn of " of the cloned item name.

function CloneItem(iIndex: Integer): Integer

Parameters:

• iIndex: position.

---

Finds the first occurrence of the item with the supplied name. Search is case-insensitive.

function FindItem(const aName: string): TCollectionItem

Parameters:

• aName: the supplied name

---

Calls the inherited FindItem (aName) method and returns the result as TDAUnionDataTable.

function FindUnionDataTableByName(const aName: string): TDAUnionDataTable

Parameters:

• aName: the specified name.

---

Returns the supplied name if the item with that name is absent in the collection or adds a number to it and sequentially increments it until the result is unique.

function FindUniqueName(const iBaseName: string): string

Parameters:

• iBaseName: the supplied name

---

Does the same as FindUniqueName, but uses a template with a numeric parameter as second argument, it should be compatible with the Delphi Format function.

function FindUniqueNameEx(const iBaseName: string; const iNumberedName: string): string

Parameters:

• iBaseName: the supplied name
• iNumberedName: numeric parameter

---

Looks for the first occurrence of the item that has a boolean property with the name "Default" and the value true. Raises an exception if no such item can be found.

function GetDefaultItem: TCollectionItem

---

Returns default item's name

function GetItemDefault(anItem: TCollectionItem): Boolean

Parameters:

• anItem: given item

---

Gets the name of the specified item.

function GetItemName(anItem: TCollectionItem): string

Parameters:

• anItem: the specified item.

---

Returns an item with the specified name.

function ItemByName(const aName: string): TCollectionItem

Parameters:

• aName: fClientFields

---

Returns the string "item".

function ItemName: string

---

Moves the item from one position to another. Checks boundaries.

procedure MoveItem(iFromIndex: Integer; iToIndex: Integer)

Parameters:

• iFromIndex: old index
• iToIndex: new index

---

Notifies about the adding or removal of an item if the event handler is assigned. If an item with an empty name is added and items without name are not allowed, it sets the name to "Item" plus number.

procedure Notify(Item: TCollectionItem; Action: TCollectionNotification)

Parameters:

• Item: given item
• Action: action

---

Event handler for removing an item.

property OnItemRemoved: TDAItemRemovedEvent read write
delegate:  procedure OnItemRemoved(aSender: TObject; const aName: string)

---

Event handler for renaming an item.

property OnItemRenamed: TDAItemRenamedEvent read write
delegate:  procedure OnItemRenamed(aSender: TObject; const aOldName: string; const aNewName: string)

---

Sets a new name for the specified item.

function SetItemName(anItem: TCollectionItem; const aName: string): string

Parameters:

• anItem: item
• aName: name

---

Calls the event handler if it was assigned.

procedure TriggerOnItemRemoved(const iName: string)

Parameters:

• iName: item name

---

Calls the event handler if it was assigned.

procedure TriggerOnItemRenamed(const iOldName: string; const iNewName: string)

Parameters:

• iOldName: old name
• iNewName: new name

---

Returns the inherited ItemByName (aName) method typecast to TDAUnionDataTable.

function UnionDataTableByName(const aName: string): TDAUnionDataTable

Parameters:

• aName: the specified name.

---

Represents the single union table (TDAUnionDataTable object) with the specified index in the current collection.

property UnionDataTables[Index: Integer]: TDAUnionDataTable read write

 

Represents the single union table (TDAUnionDataTable object) with the specified index in the current collection.

property UnionDataTables[Index: Integer]: TDAUnionDataTable read write

 

Creates a new instance.

constructor Create(aOwner: TComponent)

Parameters:

• aOwner: owner

---

Initializes the collection with the supplied parameters.

constructor Create(AOwner: TPersistent; ItemClass: TCollectionItemClass)

Parameters:

• AOwner: owner
• ItemClass: item class

---

Returns the inherited Add method and returns the result as TDAUnionDataTable.

function Add: TDAUnionDataTable

---

Inserts a copy of an item and names it "Copy nn of " of the cloned item name.

function CloneItem(iIndex: Integer): Integer

Parameters:

• iIndex: position.

---

Finds the first occurrence of the item with the supplied name. Search is case-insensitive.

function FindItem(const aName: string): TCollectionItem

Parameters:

• aName: the supplied name

---

Calls the inherited FindItem (aName) method and returns the result as TDAUnionDataTable.

function FindUnionDataTableByName(const aName: string): TDAUnionDataTable

Parameters:

• aName: the specified name.

---

Returns the supplied name if the item with that name is absent in the collection or adds a number to it and sequentially increments it until the result is unique.

function FindUniqueName(const iBaseName: string): string

Parameters:

• iBaseName: the supplied name

---

Does the same as FindUniqueName, but uses a template with a numeric parameter as second argument, it should be compatible with the Delphi Format function.

function FindUniqueNameEx(const iBaseName: string; const iNumberedName: string): string

Parameters:

• iBaseName: the supplied name
• iNumberedName: numeric parameter

---

Looks for the first occurrence of the item that has a boolean property with the name "Default" and the value true. Raises an exception if no such item can be found.

function GetDefaultItem: TCollectionItem

---

Returns default item's name

function GetItemDefault(anItem: TCollectionItem): Boolean

Parameters:

• anItem: given item

---

Gets the name of the specified item.

function GetItemName(anItem: TCollectionItem): string

Parameters:

• anItem: the specified item.

---

Returns an item with the specified name.

function ItemByName(const aName: string): TCollectionItem

Parameters:

• aName: fClientFields

---

Returns the string "item".

function ItemName: string

---

Moves the item from one position to another. Checks boundaries.

procedure MoveItem(iFromIndex: Integer; iToIndex: Integer)

Parameters:

• iFromIndex: old index
• iToIndex: new index

---

Notifies about the adding or removal of an item if the event handler is assigned. If an item with an empty name is added and items without name are not allowed, it sets the name to "Item" plus number.

procedure Notify(Item: TCollectionItem; Action: TCollectionNotification)

Parameters:

• Item: given item
• Action: action

---

Sets a new name for the specified item.

function SetItemName(anItem: TCollectionItem; const aName: string): string

Parameters:

• anItem: item
• aName: name

---

Calls the event handler if it was assigned.

procedure TriggerOnItemRemoved(const iName: string)

Parameters:

• iName: item name

---

Calls the event handler if it was assigned.

procedure TriggerOnItemRenamed(const iOldName: string; const iNewName: string)

Parameters:

• iOldName: old name
• iNewName: new name

---

Returns the inherited ItemByName (aName) method typecast to TDAUnionDataTable.

function UnionDataTableByName(const aName: string): TDAUnionDataTable

Parameters:

• aName: the specified name.

 

Event handler for removing an item.

property OnItemRemoved: TDAItemRemovedEvent read write
delegate:  procedure OnItemRemoved(aSender: TObject; const aName: string)

---

Event handler for renaming an item.

property OnItemRenamed: TDAItemRenamedEvent read write
delegate:  procedure OnItemRenamed(aSender: TObject; const aOldName: string; const aNewName: string)