We are getting a problem whe reducing the size of the window in a GroupBar. The GroupBarItems are not redrawing correctly. We are drawing the background using a LinearGradientBrush.
System.Drawing.Drawing2D.LinearGradientBrush bUnselected = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, 200, BUTTON_HEIGHT), Color.FromArgb(34, 33, 36), Color.FromArgb(37, 37, 39), System.Drawing.Drawing2D.LinearGradientMode.Vertical);
System.Drawing.Drawing2D.LinearGradientBrush bselected = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, 200, BUTTON_HEIGHT), Color.FromArgb(60, 60, 60), Color.FromArgb(80, 80, 80), System.Drawing.Drawing2D.LinearGradientMode.Vertical);
Syncfusion draw error.zip