The position of the dropdown's resizing grip will be at the opposite of the dropdown's anchor point. For example, in the first image, the DropDownAnchor property is set to DropDownAnchor.Left, and its resizing grip is located on the right. In the second image, the DropDownAnchor property is set to DropDownAnchor.Right; therefore, the resizing grip is located on the left.
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2