Add Mode Problem For RadListBox

[mohamed]

Hello every one ,

When i click the add new button radlist box come empty ,
But here come with last record of radgrid
In Modify i assign the value for RadGrid1_ItemCreated,
That's assign in add mode also

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
       {
           if (e.Item is GridEditFormItem && e.Item.IsInEditMode)
           {
               GridEditFormItem item = (GridEditFormItem)e.Item;
               RadListBox listbox = (RadListBox)item.FindControl("RadListBoxDestinationGroup");
               RadListBox listbox1 = (RadListBox)item.FindControl("RadListBoxSourceGroup");
               RadComboBox sortcolumn = (RadComboBox)item.FindControl("ComboBox_SortColumn");
               RadComboBox groupcolumn = (RadComboBox)item.FindControl("ComboBox_GroupByColumn");

               listbox.DataSource = DbClient.GetList<ListField>("LayoutId =" + LayoutId);
               listbox.DataValueField = "FieldName";
               listbox.DataTextField = "FieldName";

               sortcolumn.DataSource = DbClient.GetList<ListField>("LayoutId =" + LayoutId);
               sortcolumn.DataValueField = "FieldName";
               sortcolumn.DataTextField = "FieldName";

               groupcolumn.DataSource = DbClient.GetList<ListField>("LayoutId =" + LayoutId);
               groupcolumn.DataValueField = "FieldName";
               groupcolumn.DataTextField = "FieldName";
           }
       }

Thanks,
Mohamed.