parameters: (self)
docstring: This is called by the PopupFrame when the user closes the 
          PopupFrame, without selecting an item.
docstring_summary: This is called by the PopupFrame when the user closes the 
          PopupFrame, without selecting an item.
docstring_tokens: This is called by the PopupFrame when the user closes the PopupFrame without selecting an item .
function: def NotifyNoItemSelected(self):
          """
          This is called by the PopupFrame when the user closes the 
          PopupFrame, without selecting an item.
          """
          self.SetFocus()
function_tokens: def NotifyNoItemSelected ( self ) : self . SetFocus ( )