窗体切换闪烁 Workaround for flicker/flashing when programmatically activating MDI child forms

Introduction

This article show how to activate an MDI child form maximized, without the fireworks that erupt when you activate an MDI child form using the Active() or Select() methods of the child form.

 

http://www.codeproject.com/useritems/MgdMDIClientActivation.asp