public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIApplication application = commandData.Application;

            uidoc = application.ActiveUIDocument;
            Application application2 = application.Application;
            Document    doc          = uidoc.Document;
            Selection   sel          = uidoc.Selection;

            this._exEvent = ExternalEvent.Create((IExternalEventHandler) new CheckControlNumberEvent(this, doc));
            var form = new FrmCheckControlNumber(this, doc);

            form.Show();
            form.ExEvent = this._exEvent;
            return(Result.Succeeded);
        }
 public FrmIncrease(FrmCheckControlNumber formdata)
 {
     _formdata = formdata;
     InitializeComponent();
 }