How to eliminate flicker in Windows.Forms custom control when scrolling?

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You could try putting the following in your constructor after the InitiliseComponent call. 

SetStyle(ControlStyles.OptimizedDoubleBuffer | 
         ControlStyles.UserPaint |
         ControlStyles.AllPaintingInWmPaint, true);

EDIT:

If you’re giving this a go, if you can, remove your own double buffering code and just have the control draw itself in response to the appropriate virtual methods being called.

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