Ext.Net动态加载多表头

效果展示如下：

aspx页面代码：

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
    <title>数据展示（版本3）</title>
</head>
<body>
    <form id="form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server" />
    <ext:GridPanel ID="gpList" runat="server" Title="" IconCls="icon-grid" AnimCollapse="false" Collapsible="true" SortableColumns="true" AutoHeight="true" Width="3000">
        <Store>
            <ext:Store ID="StoreAll" runat="server" OnRefreshData="MyData_Refresh">
                <Model>
                    <ext:Model ID="Model1" runat="server">
                        <Fields>
                        </Fields>
                    </ext:Model>
                </Model>
            </ext:Store>
        </Store>
        <ColumnModel ID="ColumnModel1" runat="server">
            <Columns>
            </Columns>
        </ColumnModel>
        <SelectionModel>
            <ext:RowSelectionModel ID="RowSelectionModel1" runat="server" PruneRemoved="false" Mode="Multi" />
        </SelectionModel>
    </ext:GridPanel>
    </form>
</body>
</html>

aspx.cs文件代码：

if (!IsPostBack)
{
　　//清除旧数据与记录集
      this.StoreAll.Reader.Clear();
      this.gpList.SelectionModel.Clear();
      this.gpList.ColumnModel.Columns.Clear();
      this.StoreAll.Model.Clear();

　　DataTable dtProject = new PerforBLL().GetData();//从数据库中读取的数据

　　//数据源
DataTable results = new DataTable();
results.Columns.Add("Name");

　　//数据集Store
　　Model extModel = new Model();
　　extModel.Fields.Add(new ModelField("Name", ModelFieldType.String));
　　
　　//显示的列数据
　　List<ColumnBase> extColumnBaseList = new List<ColumnBase>();
　　extColumnBaseList.Add(new RowNumbererColumn() { ID = "RowNumbererColumn1", Width = 25 });
　　extColumnBaseList.Add(new Column() { ID = "cName", Text = "名称", Width = 300, DataIndex = "Name" });

　　Column wZJ= new Column() { ID = "cWHZ", Text = "汇总" };

　　extModel.Fields.Add(new ModelField("W-T", ModelFieldType.Float));
extModel.Fields.Add(new ModelField("W-P", ModelFieldType.Float));

if (!results.Columns.Contains("W-T")) results.Columns.Add("W-T");
if (!results.Columns.Contains("W-P")) results.Columns.Add("W-P");

       wZJ.Columns.Add(new Column()
       {
       　　Text = "时间",
             Width = 50,
             DataIndex = "W-T",
             Sortable = true
       });
       wZJ.Columns.Add(new Column()
       {
       　　Text = "成本",
             Width = 50,
             DataIndex = "W-P",
             Sortable = true
　　});

　　extColumnBaseList.Add(wZJ);

　　//动态给数据

　　foreach (DataRow drProject in dtProject.Rows)
     {
　　　　DataRow dr = results.NewRow();
           dr["Name"] = drProject["Name"];
　　　　dr["W-T"]= 0;
           dr["W-P"] = 0;

　　　　results.Rows.Add(dr);

　　}

　　this.StoreAll.Model.Add(extModel);
      this.gpList.ColumnModel.Columns.AddRange(extColumnBaseList);
      this.StoreAll.DataSource = results;
      this.StoreAll.DataBind();
      this.gpList.Render();

}