The EditingControl is the control that will be displayed when the editor enters edit mode. Before the EditingControl is displayed, the editor will set it's value, location, size, and appearance.
Any changes to the value of the EditorValue of the EditingControl will be written to the owning object when the editor exits edit mode (or discared if the owner cancels the edit).
If EditingControl is null, then the editor will not enter edit mode and thus will not allow the user to edit. It will act only as a renderer using the RenderingControl.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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