public override void OnClick()
        {
            frmMultiDataConvert _frmMultiDataConvert = new frmMultiDataConvert()
            {
                InGxObject = ((IGxSelection)_context.GxSelection).FirstObject
            };

            _frmMultiDataConvert.ShowDialog();
        }
        public override void OnClick()
        {
            frmMultiDataConvert _frmMultiDataConvert = new frmMultiDataConvert();

            _frmMultiDataConvert.Clear();
            _frmMultiDataConvert.Add(new MyGxFilterFeatureClasses());
            _frmMultiDataConvert.OutGxObject = ((IGxSelection)_context.GxSelection).FirstObject;
            _frmMultiDataConvert.ShowDialog();
        }