GridView模版列嵌套GirdView显示主从表数据
当需要在一个列表中显示主从表（例如部门-人员的信息），在asp.net1.1中我们可能会使用DataGrid模版列嵌套DataGrid的方法实现，然而，处理模版列里的DataGrid的翻页、排序、编辑等功能时都比较麻烦。在asp.net2.0中，配合DataSource控件的使用让这个问题变得非常简单！
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridView_GirdView.aspx.cs" Inherits="GridSamples_GridView_GirdView" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="deptid"
DataSourceID="AccessDataSource1" AllowPaging="True" AllowSorting="True" PageSize="2" OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="deptid" HeaderText="部门编号" InsertVisible="False" ReadOnly="True"
SortExpression="deptid" />
<asp:BoundField DataField="deptname" HeaderText="部门名称" SortExpression="deptname" />
<asp:BoundField DataField="deptremark" HeaderText="备注" SortExpression="deptremark" />
<asp:TemplateField HeaderText="人员信息">
<ItemTemplate>
<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataKeyNames="id"
DataSourceID="AccessDataSource2" AllowPaging="True" AllowSorting="True" PageSize="5">
<Columns>
<asp:BoundField DataField="id" HeaderText="人员编号" InsertVisible="False" ReadOnly="True"
SortExpression="id" />
<asp:BoundField DataField="name" HeaderText="姓名" SortExpression="name" />
<asp:BoundField DataField="sex" HeaderText="性别" SortExpression="sex" />
</Columns>
<PagerSettings FirstPageText="首页" LastPageText="末页" Mode="NextPreviousFirstLast"
NextPageText="下一页" PreviousPageText="上一页" />
</asp:GridView>
<asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="~/App_Data/test.mdb"
SelectCommand="SELECT [id], [name], [sex], [deptid] FROM [employees] WHERE ([deptid] = ?)">
<SelectParameters>
<asp:Parameter Name="deptid" Type="Int32" />
</SelectParameters>
</asp:AccessDataSource><br>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerSettings FirstPageText="首页" LastPageText="末页"
NextPageText="下一页" PreviousPageText="上一页" />
</asp:GridView>
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/test.mdb"
SelectCommand="SELECT [deptid], [deptname], [deptremark], [createdate] FROM [departments]">
</asp:AccessDataSource>
</div>
</form>
</body>
</html>
只需要上面几行简单的代码便可以实现。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridView_GirdView.aspx.cs" Inherits="GridSamples_GridView_GirdView" %>
<!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>无标题页</title></head><body> <form id="form1" runat="server"> <div> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="deptid" DataSourceID="AccessDataSource1" AllowPaging="True" AllowSorting="True" PageSize="2" OnRowDataBound="GridView1_RowDataBound"> <Columns> <asp:BoundField DataField="deptid" HeaderText="部门编号" InsertVisible="False" ReadOnly="True" SortExpression="deptid" /> <asp:BoundField DataField="deptname" HeaderText="部门名称" SortExpression="deptname" /> <asp:BoundField DataField="deptremark" HeaderText="备注" SortExpression="deptremark" /> <asp:TemplateField HeaderText="人员信息"> <ItemTemplate> <asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="AccessDataSource2" AllowPaging="True" AllowSorting="True" PageSize="5"> <Columns> <asp:BoundField DataField="id" HeaderText="人员编号" InsertVisible="False" ReadOnly="True" SortExpression="id" /> <asp:BoundField DataField="name" HeaderText="姓名" SortExpression="name" /> <asp:BoundField DataField="sex" HeaderText="性别" SortExpression="sex" /> </Columns> <PagerSettings FirstPageText="首页" LastPageText="末页" Mode="NextPreviousFirstLast" NextPageText="下一页" PreviousPageText="上一页" /> </asp:GridView> <asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="~/App_Data/test.mdb" SelectCommand="SELECT [id], [name], [sex], [deptid] FROM [employees] WHERE ([deptid] = ?)"> <SelectParameters> <asp:Parameter Name="deptid" Type="Int32" /> </SelectParameters> </asp:AccessDataSource><br> </ItemTemplate> </asp:TemplateField> </Columns> <PagerSettings FirstPageText="首页" LastPageText="末页" NextPageText="下一页" PreviousPageText="上一页" /> </asp:GridView> <asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/test.mdb" SelectCommand="SELECT [deptid], [deptname], [deptremark], [createdate] FROM [departments]"> </asp:AccessDataSource> </div> </form></body></html> 1using System;
2using System.Data;
3using System.Configuration;
4using System.Collections;
5using System.Web;
6using System.Web.Security;
7using System.Web.UI;
8using System.Web.UI.WebControls;
9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11
12public partial class GridSamples_GridView_GirdView : System.Web.UI.Page
13{
14
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
15
{
16 if (e.Row.RowIndex > -1)
17 {
18 AccessDataSource accessDS = e.Row.FindControl("AccessDataSource2") as AccessDataSource;
19 accessDS.SelectParameters["deptid"].DefaultValue = e.Row.Cells[0].Text;
20
}
21 }
22
}
using System;2
using System.Data;3
using System.Configuration;4
using System.Collections;5
using System.Web;6
using System.Web.Security;7
using System.Web.UI;8
using System.Web.UI.WebControls;9
using System.Web.UI.WebControls.WebParts;10
using System.Web.UI.HtmlControls;11
12
public partial class GridSamples_GridView_GirdView : System.Web.UI.Page13
{14
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)15
{
16
if (e.Row.RowIndex > -1)17
{18
AccessDataSource accessDS = e.Row.FindControl("AccessDataSource2") as AccessDataSource;19
accessDS.SelectParameters["deptid"].DefaultValue = e.Row.Cells[0].Text;20
}21
}22
}只需要上面几行简单的代码便可以实现。
