WinForm窗体生命周期
1,窗体启动时:
Control.HandleCreated
Control.BindingContextChanged
Form.Load
Control.VisibleChanged
Form.Activated
Form.Shown
2,窗体关闭时:
Form.Closing
Form.FormClosing
Form.Closed
Form.FormClosed
Form.Deactivate
3,控件焦点与验证事件:
Enter
GotFocus
Leave
Validating
Validated
LostFocus
4,使用鼠标:
Enter
GotFocus
LostFocus
Leave
Validating
Validated
转自： http://www.cnblogs.com/petermsdn/archive/2009/07/09/1520032.html