.NET框架使用一种模式，对于每个事件 X 方法 protected void OnX（EventArgs e）{} 引发事件 X 。请参阅此 Msdn文章。要从声明类外部引发事件，您将必须派生类并添加公共包装器方法。在 Button 的情况下，它将如下所示：

  class MyButton ：System.Windows.Forms.Button 
 {

 public void ProgrammaticClick（EventArgs e）
 {
 base.OnClick（e）; 
} 

} 
 

Assume that I have a WinFoms project. There is just one button (e.g. button1).

The question is: is it possible to trigger the ButtonClicked event via code without really clicking it?

The .NET framework uses a pattern where for every event X there is a method protected void OnX(EventArgs e) {} that raises event X. See this Msdn article. To raise an event from outside the declaring class you will have to derive the class and add a public wrapper method. In the case of Button it would look like this:

class MyButton : System.Windows.Forms.Button
{

    public void ProgrammaticClick(EventArgs e)
    {
        base.OnClick(e);
    }

}