解决办法:
在调用自定义控件的窗体内添加的:
1 protected override CreateParams CreateParams 2 { 3 get 4 { 5 CreateParams cp = base.CreateParams; 6 cp.ExStyle |= 0x02000000; // Turn on WS_EX_COMPOSITED 7 return cp; 8 } 9 }
在自定义控件中添加的:
protected override CreateParams CreateParams { get { var parms = base.CreateParams; parms.Style &= ~0x02000000; // Turn off WS_CLIPCHILDREN return parms; } }