数据绑定控件Reperter
1、 Reperter控件
a) 原理：对数据源数据做foreach进行遍历；
b) 使用前先绑定数据源
c) ItemTemplate 显示数据
d) <%#Eval("ID")用来绑定数据字段
e) HeaderTemplate 头部说明
f) FooterTemplate 尾部说明
g) SeparatorTemplate 相隔数据之间显示的内容
h) AlternatingItemTemplate 使隔行以不同的样式风格进行显示
i) ItemTemplate
j) ItemDataBound事件 当每次进行扫描的时候调用，可以用此对生成的数据或者控件进行操作
k) 使用实例：
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1">
<ItemTemplate >编号<%#Eval("ID") %> 姓名<%#Eval("UserName") %></ItemTemplate>
</asp:Repeater>
asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1">
<ItemTemplate >编号<%#Eval("ID") %> 姓名<input type="button" value="<%#Eval("UserName") %>"/></ItemTemplate>
<AlternatingItemTemplate >
<div style=" background-color:Blue">
编号<%#Eval("ID") %> 姓名<input type="button" value="<%#Eval("UserName") %>"/>
</div>
</AlternatingItemTemplate>
</asp:Repeater>
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1">
<HeaderTemplate>显示标题</HeaderTemplate>
<ItemTemplate >编号<%#Eval("ID") %> 姓名<input type="button" value="<%#Eval("UserName") %>"/></ItemTemplate>
<AlternatingItemTemplate >
<div style=" background-color:Blue">
编号<%#Eval("ID") %> 姓名<input type="button" value="<%#Eval("UserName") %>"/>
</div>
</AlternatingItemTemplate>
<HeaderTemplate><p>头部</p></HeaderTemplate>
<FooterTemplate><p>尾部说明</p></FooterTemplate>
<SeparatorTemplate><hr /></SeparatorTemplate>
</asp:Repeater>
</form>
ItemDataBound事件：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Drawing;
namespace WebApplication1
{
public partial class DateBound : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
DataRowView dateView = (DataRowView)e.Item.DataItem;
if (dateView != null)
{
var row = (WebApplication1.DateSource.DAL.UserDateSource.UserNameRow)dateView.Row;
if (row.ID > 3)
{
TextBox txtBox = (TextBox)e.Item.FindControl("TextBox2");
txtBox.BackColor = Color.Red;
}
}
}
}
}
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="DateBound.aspx.cs" Inherits="WebApplication1.DateBound" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
InsertMethod="Insert" OldValuesParameterFormatString="original_{0}"
SelectMethod="GetData"
TypeName="WebApplication1.DateSource.DAL.UserDateSourceTableAdapters.UserNameTableAdapter">
<InsertParameters>
<asp:Parameter Name="UserName" Type="String" />
<asp:Parameter Name="UserPsw" Type="String" />
<asp:Parameter Name="UserPicturePath" Type="String" />
</InsertParameters>
</asp:ObjectDataSource>
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1"
onitemdatabound="Repeater1_ItemDataBound">
<HeaderTemplate><table bgcolor="#00FF99" border="2" frame="box"></HeaderTemplate>
<ItemTemplate>
<tbody>
<tr> <td>用户名：</td><td>
<asp:TextBox ID="TextBox1" runat="server" Text=' <%#Eval("UserName") %>'></asp:TextBox></td>
<td>编号：</td><td>
<asp:TextBox ID="TextBox2" runat="server" Text=' <%#Eval("ID") %>'></asp:TextBox></td>
</tr>
</tbody>
</ItemTemplate>
<FooterTemplate></table></FooterTemplate>
</asp:Repeater>
</form>
</body>
</html>
ItemCommand事件：
aspx页面代码：
<asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1"
onitemdatabound="Repeater1_ItemDataBound"
onitemcommand="Repeater1_ItemCommand" >
<HeaderTemplate><table bgcolor="#00FF99" border="2" frame="box">
<tr>
<td>姓名</td><td>成绩</td><td>操作</td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tbody>
<tr> <td>
<asp:TextBox ID="TextBox1" runat="server" Text=' <%#Eval("UserName") %>'></asp:TextBox></td>
<td>
<asp:TextBox ID="TextBox2" runat="server" Text=' <%#Eval("UserScore") %>'></asp:TextBox></td>
<td>
<asp:Button Text="增加成绩" runat="server" CommandName="ArgScore" CommandArgument='<%#Eval("ID") %>'/>
</td>
</tr>
</tbody>
</ItemTemplate>
<FooterTemplate></table></FooterTemplate>
后台代码：
protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
{
if (e.CommandName == "ArgScore")
{
int id = Convert.ToInt32(e.CommandArgument);
UserNameTableAdapter adapter = new UserNameTableAdapter();
adapter.ArcUserScore(id);//操作数据库，对成绩进行改变
Repeater1.DataBind();//强制刷新数据
}
}
说明：
1) Eval（）对数据字段进行绑定
2) 格式可以自己把握，想显示在哪就设置在哪就行了
例如：
asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1">
<ItemTemplate >编号<%#Eval("ID") %> 姓名<input type="button" value="<%#Eval("UserName") %>"/></ItemTemplate>
</asp:Repeater>
