Infragistics WebHierarchicalDataGrid - 当数据绑定到 IList 时子带上的自定义样式？

Question

我正在尝试在 Infragistics 分层数据网格的子带级别上设置一些自定义样式和 TemplateDataFields。我将控件绑定到具有子列表的 IList。当我将其配置为 AutoGenerateBands 时，该控件将正常工作（显示父表并展开子表）。但我需要在子表上有自定义标题和 TemplateDataFields。

这是我的 aspx：

      <ig:WebHierarchicalDataGrid ID="WebHierarchicalDataGrid1" runat="server"   AutoGenerateColumns="false" 
          AutoGenerateBands="false" DataKeyFields="DataSourceId" Width="700px"   Height="700px">
        <ExpandCollapseAnimation SlideOpenDirection="Auto" SlideOpenDuration="300" SlideCloseDirection="Auto"
            SlideCloseDuration="300" />


    <Columns>        
        <ig:BoundDataField  DataFieldName="DataSourceId" Key="DataSourceId" Header-Text="Data Source Id" Hidden="true"/>                        
        <ig:BoundDataField  DataFieldName="DataSrc" Key="DataSrc" Header-Text="Data Source" />
        <ig:BoundDataField  DataFieldName="DataSrcType" Key="DataSrcType" Header-Text="Activity Type" />
        <ig:BoundDataField  DataFieldName="Reporting" Key="Reporting" Header-Text="Reporting?" />
        <ig:BoundDataField  DataFieldName="LastUpdtSrc" Key="LastUpdtSrc" Header-Text="Last Update Source" />
        <ig:BoundDataField  DataFieldName="LastUpdtDate" Key="LastUpdtDate" Header-Text="Last Update Date" />
        <ig:TemplateDataField Key="Priority" Header-Text="Priority"> </ig:TemplateDataField>
    </Columns>

     <Bands> 
        <ig:Band DataMember="WebHierarchicalDataGrid1" Key="DataSourceId">
            <Columns>
                <ig:BoundDataField DataFieldName="DataSourceId" Key="DataSourceId" Header-Text="Data Source Id" Hidden="true" />
                <ig:BoundDataField DataFieldName="OriginalSrc" Key="OriginalSrc" Header-Text="Original Source" />
                <ig:BoundDataField DataFieldName="LastUpdtDate" Key="LastUpdtDate" Header-Text="Last Update Date" />
                <ig:BoundDataField DataFieldName="RecordsCount" Key="RecordsCount" Header-Text="Records Count" />
            </Columns>
        </ig:Band>
    </Bands>


        <Behaviors>
            <ig:Paging PagerAppearance="Bottom" PageSize="50" Enabled="true" />
            <ig:Sorting SortingMode="Single" Enabled="true">
            </ig:Sorting>
        </Behaviors>
        </ig:WebHierarchicalDataGrid> 

以下是我如何在页面加载中绑定数据：

    this.WebHierarchicalDataGrid1.DataSource = GetLastUpdatedEvents().OrderByDescending(x => x.LastUpdtDate);

    this.WebHierarchicalDataGrid1.DataBind();

此代码生成一个格式良好的父表，并在正确的行上显示展开箭头。单击后，奶嘴将旋转，但不会显示子表。

任何帮助将不胜感激！

谢谢，

-威尔