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DataList嵌套DataList(使用DataRelation实现纯代码)

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aspx

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DataListNesting.aspx.cs" Inherits="DataListNesting" %>

<!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 runat="server">

<title>DataListNesting</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:DataList ID="DataList1" runat="server">

<ItemTemplate>

<asp:Label ID="Label1" runat="server" Text='<%# Eval("OrderID") %>'></asp:Label>

<asp:Label ID="Label2" runat="server" Text='<%# Eval("CustomerID") %>'></asp:Label>

<asp:DataList ID="DataList2" runat="server" DataSource='<%# (Container.DataItem as System.Data.DataRowView).Row.GetChildRows("myRelation") %>'>

<ItemTemplate>

<asp:Label ID="Label1" runat="server" Text='<%# (Container.DataItem as System.Data.DataRow)["ProductID"] %>'></asp:Label>

<asp:Label ID="Label2" runat="server" Text='<%# (Container.DataItem as System.Data.DataRow)["UnitPrice"] %>'></asp:Label>

<asp:Label ID="Label3" runat="server" Text='<%# (Container.DataItem as System.Data.DataRow)["Quantity"] %>'></asp:Label>

</ItemTemplate>

</asp:DataList>

</ItemTemplate>

</asp:DataList>

</div>

</form>

</body>

</html>

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DataListNesting.aspx.cs" Inherits="DataListNesting" %>
<!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 runat="server">
<title>DataListNesting</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DataList ID="DataList1" runat="server">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("OrderID") %>'></asp:Label>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("CustomerID") %>'></asp:Label>
<asp:DataList ID="DataList2" runat="server" DataSource='<%# (Container.DataItem as System.Data.DataRowView).Row.GetChildRows("myRelation") %>'>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# (Container.DataItem as System.Data.DataRow)["ProductID"] %>'></asp:Label>
<asp:Label ID="Label2" runat="server" Text='<%# (Container.DataItem as System.Data.DataRow)["UnitPrice"] %>'></asp:Label>
<asp:Label ID="Label3" runat="server" Text='<%# (Container.DataItem as System.Data.DataRow)["Quantity"] %>'></asp:Label>
</ItemTemplate>
</asp:DataList>
</ItemTemplate>
</asp:DataList>
</div>
</form>
</body>
</html>

aspx.cs

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using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class DataListNesting : System.Web.UI.Page

{

private void BindList()

{

SqlConnection cn = new SqlConnection(@"server=./sqlexpress;uid=sa;pwd=;database=northwind;");

SqlDataAdapter da = new SqlDataAdapter("select OrderID, CustomerID from Orders; select OrderID, ProductID, UnitPrice, Quantity from [Order Details]", cn);

DataSet ds = new DataSet();

cn.Open();

da.Fill(ds);

cn.Close();

ds.Tables[0].TableName = "Orders";

ds.Tables[1].TableName = "OrderDetails";

DataRelation ordersToOrderDetails = ds.Relations.Add("myRelation", ds.Tables["Orders"].Columns["OrderID"], ds.Tables["OrderDetails"].Columns["OrderID"]);

DataList1.DataSource = ds.Tables["Orders"];

DataList1.DataBind();

}

private void Page_Load(object sender, System.EventArgs e)

{

if (!IsPostBack)

{

BindList();

}

}

//protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)

//{

// DataList DataList2;

// if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

// {

// DataList2 = e.Item.FindControl("DataList2") as DataList;

// DataList2.DataSource = ((DataRowView)(e.Item.DataItem)).Row.GetChildRows("myRelation");

// DataList2.DataBind();

// }

//}

}

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class DataListNesting : System.Web.UI.Page
{
private void BindList()
{
SqlConnection cn = new SqlConnection(@"server=./sqlexpress;uid=sa;pwd=;database=northwind;");
SqlDataAdapter da = new SqlDataAdapter("select OrderID, CustomerID from Orders; select OrderID, ProductID, UnitPrice, Quantity from [Order Details]", cn);
DataSet ds = new DataSet();
cn.Open();
da.Fill(ds);
cn.Close();
ds.Tables[0].TableName = "Orders";
ds.Tables[1].TableName = "OrderDetails";

DataRelation ordersToOrderDetails = ds.Relations.Add("myRelation", ds.Tables["Orders"].Columns["OrderID"], ds.Tables["OrderDetails"].Columns["OrderID"]);

DataList1.DataSource = ds.Tables["Orders"];
DataList1.DataBind();
}

private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
BindList();
}
}

//protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
//{
//    DataList DataList2;
//    if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
//    {
//        DataList2 = e.Item.FindControl("DataList2") as DataList;
//        DataList2.DataSource = ((DataRowView)(e.Item.DataItem)).Row.GetChildRows("myRelation");
//        DataList2.DataBind();
//    }
//}
}

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DataList嵌套DataList(使用DataRelation实现 纯代码)

DataList嵌套DataList(使用DataRelation实现纯代码)