Question

How do I enable double-buffering of a control using C# (Windows forms)?

I have a panel control which I am drawing stuff into and also an owner-drawn tab control. Both suffer from flicker, so how can I enable double-buffering?

Answer 1

In the constructor of your control, set the DoubleBuffered property, and/or ControlStyle appropriately.

For example, I have a simple DoubleBufferedPanel whose constructor is the following:

this.DoubleBuffered = true; this.SetStyle(ControlStyles.UserPaint |                ControlStyles.AllPaintingInWmPaint |               ControlStyles.ResizeRedraw |               ControlStyles.ContainerControl |               ControlStyles.OptimizedDoubleBuffer |               ControlStyles.SupportsTransparentBackColor               , true);