You can handle this event to customize the appearance of cells in the control. You can paint entire cells yourself, or paint specific parts of cells and use the DataGridViewCellPaintingEventArgs.PaintBackground(System.Drawing.Rectangle, bool) or DataGridViewCellPaintingEventArgs.PaintContent(System.Drawing.Rectangle) methods to paint other parts. You can also use the System.Windows.Forms.VisualStyles.VisualStyleRenderer class to paint standard controls using the current theme. For more information, see Rendering Controls with Visual Styles. If you are using vsprvslong, you also have access to a large library of standard images that you can use with the System.Windows.Forms.DataGridView control.
When handling this event, you should access the cell through the parameters of the event handler, rather than access the cell directly.
For more information about handling events, see Consuming Events.