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>