code: def Reset(self):
          
  
          try:
              self._tc.SetValue(self.startValue)
          except TypeError:
              # Start value was None
              pass
          self._tc.SetInsertionPointEnd()
          # Update the Entry Line
          post_command_event(self.main_window, self.TableChangedMsg,
                             updated_cell=self.startValue)
docs: Reset the value in the control back to its starting value.
          *Must Override*