Can Revit communication with the winform?

[s04049]

I created a datagridview on winform from revit element parameter and created a IExternalEventHandler for change the parameter of the element. On the datagridview after user changed the value of the cell that will trigger the IExternalEventHandler , However if the parameter is read only or mismatch of data store type, i want to reject changes on datagridview but i don't know how to return the information back or trigger the event outside of the winform. Any idea ? Thanks

[jeremytammik · Accepted solution]

Yes: determine the read-only state and storage type ahead of time, before you set up the datagridview, and disable editing those cells.