嵌套的数据控件在子控件绑定时访问父控件的数据绑定项的方法

作者：孟宪会阅读：1427 发表于：2010-11-08 10:20:09

ASPX 代码

<%@ Page Language="C#" EnableViewState="false" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
  protected void Page_Load(object sender, EventArgs e)
  {
    System.Data.DataSet ds = new System.Data.DataSet();
    System.Data.DataTable dataTable1 = new System.Data.DataTable("BlogUser");
    System.Data.DataRow dr;
    dataTable1.Columns.Add(new System.Data.DataColumn("UserId", typeof(System.Int32)));
    dataTable1.Columns.Add(new System.Data.DataColumn("UserName", typeof(System.String)));
    dataTable1.PrimaryKey = new System.Data.DataColumn[] { dataTable1.Columns["UserId"] };
    for (int i = 0; i < 8; i++)
    {
      dr = dataTable1.NewRow();
      dr[0] = i;
      dr[1] = "用户姓名【孟子E章】测试" + i.ToString();
      dataTable1.Rows.Add(dr);
    }
    System.Data.DataTable dataTable2 = new System.Data.DataTable("BlogArticle");
    dataTable2.Columns.Add(new System.Data.DataColumn("ArticleId", typeof(System.Int32)));
    dataTable2.Columns.Add(new System.Data.DataColumn("Title", typeof(System.String)));
    dataTable2.Columns.Add(new System.Data.DataColumn("UserId", typeof(System.Int32)));
    dataTable2.PrimaryKey = new System.Data.DataColumn[] { dataTable1.Columns["ArticleId"] };
    Random rd = new Random();
    for (int i = 0; i < 20; i++)
    {
      dr = dataTable2.NewRow();
      dr[0] = i;
      dr[1] = "文章标题例子" + i.ToString();
      dr[2] = rd.Next(0, 7);
      dataTable2.Rows.Add(dr);
    }
    ds.Tables.Add(dataTable1);
    ds.Tables.Add(dataTable2);
    System.Data.DataColumn parentColumn = ds.Tables["BlogUser"].Columns["UserId"];
    System.Data.DataColumn childColumn = ds.Tables["BlogArticle"].Columns["UserId"];
    System.Data.DataRelation user_article = new System.Data.DataRelation("UserId", parentColumn, childColumn);
    ds.Relations.Add(user_article);
    this.parentRepeater.DataSource = ds.Tables["BlogUser"].DefaultView;
    this.parentRepeater.DataBind();
  }
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body>
  <form id="form1" runat="server">
  
  <asp:Repeater ID="parentRepeater" runat="server">
  <HeaderTemplate><table border="1"></HeaderTemplate>
  <FooterTemplate></table></FooterTemplate>
    <ItemTemplate>
      <tr style="text-align:left">
      <th style="background-color:#EEEEEE"><input type="checkbox" name="cb_<%# Container.ItemIndex + 1 %>" />
        <%# DataBinder.Eval(Container.DataItem, "UserName")%>
       </th>
      </tr>
      <ul>
        
        <asp:Repeater ID="childRepeater" runat="server"
          DataSource='<%# ((System.Data.DataRowView)Container.DataItem).Row.GetChildRows("UserId") %>'>
          <ItemTemplate>
            <tr>
            <td style="padding-left:20px">
              <input type="checkbox" name="cb_<%# ((RepeaterItem)Container.Parent.Parent).ItemIndex %>_<%# Container.ItemIndex%>" />
              <%# DataBinder.Eval(Container.DataItem, "[\"Title\"]")%>
              父级数据：<%# DataBinder.Eval(((RepeaterItem)Container.Parent.Parent).DataItem, "UserName")%>
              父级序号：<%# ((RepeaterItem)Container.Parent.Parent).ItemIndex %>
              </td>
          </ItemTemplate>
        </asp:Repeater>
      </tr>
      
    </ItemTemplate>
  </asp:Repeater>
  
  </form>
</body>
</html>

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