Action
               
               Gets the index of the first item in the current selection or returns negative one (-1) if the selection is empty. The value
               is zero-based.
               
            
            
            
               Syntax
               
               
               C#
                  
protected Integer SelectedIndex { get; }
                  VB
                  
'Declaration
Protected Read Property SelectedIndex As Integer
                   
            
            
               
Access
               
               Read only.