Datasnap.Provider.TCustomProvider.DoBeforeRowRequest

• Up to Parent: TCustomProvider

Delphi

procedure DoBeforeRowRequest(var OwnerData: OleVariant); virtual;

C++

virtual void __fastcall DoBeforeRowRequest(System::OleVariant &OwnerData);

Properties

Type	Visibility	Source	Unit	Parent
procedure function	protected	Datasnap.Provider.pas Datasnap.Provider.hpp	Datasnap.Provider	TCustomProvider

Description

Generates a BeforeRowRequest event.

The RowRequest method calls DoBeforeRowRequest to generate the BeforeRowRequest event before fetching the requested data.

OwnerData supplies custom information to the BeforeRowRequest event handler. The event handler can change this value. The returned value is then passed to an AfterRowRequest event handler and then returned to the caller of the RowRequest method.

See Also

• RowRequest

• BeforeRowRequest

• AfterRowRequest