Datasnap.DBClient.TCustomClientDataSet.ExecuteCommand
| [–] Properties | |
|---|---|
| Type: procedure function
| |
| Visibility: protected | |
| Source: Datasnap.DBClient.pas Datasnap.DBClient.hpp
| |
| Unit: Datasnap.DBClient | |
| Parent: TCustomClientDataSet | |
Delphi
procedure ExecuteCommand(const ACommand: string; const Args: array of const); virtual;
C++
virtual void __fastcall ExecuteCommand(const System::UnicodeString ACommand, const System::TVarRec *Args, const System::NativeInt Args_High);
Description
Executes an extended command of a TDataSet descendant.
ExecuteCommand executes an extended command of a TClientDataSet descendant given by parameter.
The method takes two parameters.
The ACommand parameter is the command to execute. To be supported, the ACommand must be one of the following:
| Value | Meaning |
|---|---|
|
sApplyUpdatesDataSetCommand |
Writes changes for all the changed records (inserted, deleted, or edited) to the database. |
|
sCancelUpdatesDataSetCommand |
Cancels edits for all edited records, restores the record display to its condition prior to editing, and turns off Insert and Edit. |
TClientDataSet has two extended commands: ApplyUpdates and CancelUpdates.
The Args parameter is an argument that represents the maximum number of errors that may occur when the command is executed.