Retrieves a filename extension to save this object's persistance data with.
[Visual Basic] Public ReadOnly Property Extension As String [C#] public string Extension {get;} [C++] public: __property String* get_Extension(); [JScript] public function get Extension() : String;
a filename extension to use during object persistence. ListItem does not use an extension, so this always returns null.
ListItem Class | ListItem Members | System.WinForms Namespace