請問我使用Button,把Action此屬性設定為Action 的Datasetinsert,但是 我除了在Action要做一些事件外,我在Button click也要觸發一些事,但是很奇怪, 只要我在Button click或Action onexecute寫的任何事件會觸發,但是此時Button Action的atasetinsert 都不會執行,請問是為什麼???

Here are the related code from VCL source:    

procedure TSpeedButton.Click;
begin
  inherited Click;
end;
{...}
procedure TControl.Click;
begin
  { Call OnClick if assigned and not equal to associated action's OnExecute.
    If associated action's OnExecute assigned then call it, otherwise, call
    OnClick. }
  if Assigned(FOnClick) and (Action <> nil) and (@FOnClick <> @Action.OnExecute) then
    FOnClick(Self)
  else if not (csDesigning in ComponentState) and (ActionLink <> nil) then
    ActionLink.Execute(Self)
  else if Assigned(FOnClick) then
    FOnClick(Self);
end;

Hence either the button click event handler or the action execute handler will be executed.

Dear William 你說的意思是只要我在button中加入此 inherited Click;就好了嗎?? 而procedure TControl.Click;要加在哪裡呢??? 對不起我點不懂要如何修改???

引言:Dear William 你說的意思是只要我在button中加入此 inherited Click;就好了嗎?? 而procedure TControl.Click;要加在哪裡呢??? 對不起我點不懂要如何修改???

Unless you want to build your own VCL, don't modify it... What I mean is you can only use either the click event or the action execute but NOT both at the same time.