dev控件中LookUpEdit的数据绑定问题

LookUpEdit绑定实体类困扰了我很久，明明和工作室万哥的前台代码是差不多的，但是怎么也绑不成功。后来经过老师的帮忙调试，才找到问题，而这个源头也让我十分吐血，居然是GridControl的Name属性值设的不对，必须要设Name=PART_GridControl，想了半天还是没有想明白。现附上代码

首先是Xaml

<dxg:LookUpEdit Height="25"
                                            Name="txtSupplierId"
                                            DisplayMember="id"
                                            AutoPopulateColumns="False"
                                            AutoComplete="True"
                                            IncrementalFiltering="True"
                                            ImmediatePopup="True"
                                            IsPopupAutoWidth="False"
                                            HorizontalAlignment="Stretch"
                                            VerticalAlignment="Stretch"
                                            IsTextEditable="False"
                                            SelectedIndex="-1"
                                            PopupOpening="chooseSupplierId">
                                            <dxg:LookUpEdit.PopupContentTemplate>
                                                <ControlTemplate>
                                                    <dxg:GridControl Name="PART_GridControl" ItemsSource="{Binding}">
                                                        <dxg:GridControl.Columns>
                                                            <dxg:GridColumn FieldName="编号" Binding="{Binding id}"/>
                                                            <dxg:GridColumn FieldName="供应商名称" Binding="{Binding csuppliername}"/>
                                                        </dxg:GridControl.Columns>
                                                        <dxg:GridControl.View>
                                                            <dxg:TableView ShowGroupPanel="False"/>
                                                        </dxg:GridControl.View>
                                                    </dxg:GridControl>
                                                </ControlTemplate>
                                            </dxg:LookUpEdit.PopupContentTemplate>
                                        </dxg:LookUpEdit>

接下来是绑定后台实体类：

//选择供应商编号
        private void chooseSupplierId(object sender, RoutedEventArgs e)
        {
            List<SupplierData> data = new List<SupplierData>();
            SupplierData a = newSupplierData();
            a.id="1";
            a.csuppliername="A"
            data.Add(a);
            txtSupplierId.ItemsSource = data;//绑定数据源
        }

         class SupplierData
      {
               public string id { get; set; }

               public string csuppliername { get; set; }//供应商名称

            public string csupplieraddress { get; set; }//供应商地址
    }

这样便可以成功的绑定了~