code: def OnOk(self, event):
          
  
          # Get key values from textctrls
  
          key_strings = [self.row_textctrl.GetValue(),
                         self.col_textctrl.GetValue(),
                         self.tab_textctrl.GetValue()]
  
          key = []
  
          for key_string in key_strings:
              try:
                  key.append(int(key_string))
              except ValueError:
                  key.append(0)
  
          # Post event
  
          post_command_event(self.parent, self.GotoCellMsg, key=tuple(key))
docs: Posts a command event that makes the grid show the entered cell