如何一个方法响应多个控件

private void BarButtonItem_ItemClick(object sender, DevExpress.Xpf.Bars.ItemClickEventArgs e) {
            BarButtonItem barItem = sender as BarButtonItem;
            if(barItem == null) return;
            string groupName = barItem.Content as string;

            treeList.BeginDataUpdate();
            foreach(Employee empl in view.SelectedRows)
                empl.GroupName = groupName;
            treeList.EndDataUpdate();
        }

<dxg:TreeListView.RowCellMenuCustomizations>
                        <dxb:BarButtonItem Content="Executive General and Administration" Glyph="/TreeListDemo;component/Images/Categories/Administration.png"
                                           ItemClick="BarButtonItem_ItemClick" />
                        <dxb:BarButtonItem Content="Sales and Marketing" Glyph="/TreeListDemo;component/Images/Categories/Sales.png" 
                                           ItemClick="BarButtonItem_ItemClick" />
                        <dxb:BarButtonItem Content="Inventory Management" Glyph="/TreeListDemo;component/Images/Categories/Inventory.png" 
                                           ItemClick="BarButtonItem_ItemClick" />
                        <dxb:BarButtonItem Content="Research and Development" Glyph="/TreeListDemo;component/Images/Categories/Research.png" 
                                           ItemClick="BarButtonItem_ItemClick" />
                        <dxb:BarButtonItem Content="Manufacturing" Glyph="/TreeListDemo;component/Images/Categories/Manufacturing.png" 
                                           ItemClick="BarButtonItem_ItemClick" />
                        <dxb:BarButtonItem Content="Quality Assurance" Glyph="/TreeListDemo;component/Images/Categories/Quality.png" 
                                           ItemClick="BarButtonItem_ItemClick" />
                    </dxg:TreeListView.RowCellMenuCustomizations>

看到就应该明白了吧