将TRadioButton设置为选中会导致OnClick事件 [英] Setting TRadioButton to checked causes OnClick event

问题描述

mybox.Checked := true;

将TRadioButton设置为选中（通过代码）会导致调用OnClick事件处理程序。

Setting TRadioButton to checked (by code) causes OnClick event handler to be called.

如何识别用户是否通过GUI交互进行状态更改

How can I recognize if user is making the state change by GUI interaction

推荐答案

您可以在以编程方式更改单选按钮状态时取消OnClick事件处理程序：

You can nil the OnClick event handler while changing a radiobutton state programmatically:

procedure TForm1.Button6Click(Sender: TObject);
var
  Save: TNotifyEvent;

begin
  Save:= RadioButton2.OnClick;
  RadioButton2.OnClick:= nil;
  RadioButton2.Checked:= not RadioButton2.Checked;
  RadioButton2.OnClick:= Save;
end;

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