以下是我测试TextBox事件的结果如有不对还望更正
一用鼠标点击控件然后离开
Enter
GotFocus
LostFocus
Leave
Validating
Validated
二用鼠标当Validating中 CancelEventArgsCancel = true 时
Enter
GotFocus
LostFocus
Leave
Validating
Enter
GotFocus
三用tab键经过一个控件时
Enter
GotFocus
KeyUp
Leave
Validating
Validated
LostFocus
四用tab键当Validating中 CancelEventArgsCancel = true 时
Enter
GotFocus
KeyUp
Leave
Validating
Enter
KeyUp
