An object containing the value of the member of the data source specified by the ValueMember property.
Remarks
If the ValueMember property is not set, SelectedValue returns a null reference (Nothing in Visual Basic).
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