按下按钮时执行功能，不点击

Question

I need execute a function immediately before when I press button. Note, in the normal command Button1_Click , the function only executes after I release it. If I hold the button press, the function doesn't work, only before I release it.

 private void Button1_Click(object sender, EventArgs e)
 {  
    myFunction(); 
 }

Answer 1

您可以使用按钮KeyDown事件来实现此功能