Filters

Once the data is loaded, it can be filtered on the client side without sending any requests to the server.

On the main form, add a TEdit and name it editFilter, and a TButton called btnFilter.

Implement an onClick handler to call the FilterTask method on the DataModule.

procedure TClientForm.btnFilterClick(Sender: TObject);
begin
  ClientDataModule.FilterTask(editFilter.Text);
end;

In the DataModule, implement the FilterTask method.

procedure TClientDataModule.FilterTask(aFilter: String);
begin
  tbl_Tasks.Filter := aFilter;
  tbl_Tasks.Filtered := tbl_Tasks.Filter <> '';
end;

Now the records in the Tasks table can be filtered locally, without any data requests being sent to the server.