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ASP.NET数据绑定的一般情况 1、<%= C#代码 %> //调用代码隐藏页面的方法、属性、或者字段 这里一般是调用属性和方法比较多,要注意调用的属性、方法或者字段的作用域,必须是可以在ASPX页面可以访问到的。 代码示例(ASPX):<%=Property%> 在(CS)是: public string Property{ get { return "This is a Property";} } 属性是这样使用的,方法和字段的使用类似,也是这样实现的。 2、<%#数据绑定表达式%>//是在列表控件里面使用的 使用方式一:<%# Eval("FirstName")%> 使用方式二:<%# DataBinder.Eval(Container.DataItem, "SecondName")%> 下面附上我调试的源码,可以复制过去看看 在ASPX页面: 复制代码 代码如下: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="DataBindEx._Default" %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Collections.Generic" %> <!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 runat="server"> <div> <%=Property%> <br /> <asp:TextBox ID="TextBox1" Text="This is TextBox of serverClient " runat="server"></asp:TextBox> <br /> <%=Method()%> <br /> <br /> <asp:Label ID="Label1" runat="server"><%=TextBox1.Text %></asp:Label> <br /> <%=(Property + " " + Method())%> </div> <div> <asp:Repeater ID="Repeater1" runat="server" OnItemDataBound="RptAllOnItemDataBound"> <HeaderTemplate> This is Header<br /> </HeaderTemplate> <ItemTemplate> FirstName:<%# Eval("FirstName")%> SecondName:<%# DataBinder.Eval(Container.DataItem, "SecondName")%> FullName:<%# (Container.DataItem as DataBindEx.Person).FullName%> <asp:Literal ID="Others" runat="server"></asp:Literal> <br /> </ItemTemplate> <FooterTemplate> This is footer<br /> </FooterTemplate> </asp:Repeater> </div> </form> </body> </html> 在CS页面: 复制代码 代码如下: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.MobileControls; namespace DataBindEx { public class Person { public string FirstName { get; set; } public string SecondName { get; set; } public string FullName { get { return FirstName + SecondName; } } } public partial class _Default : System.Web.UI.Page { public string Property { get { return "This is a Property"; } } protected void Page_Load(object sender, EventArgs e) { string str = TextBox1.Text; Person per = new Person(); per.FirstName= "刘"; per.SecondName= "明丰"; Person per1 = new Person(); per1.FirstName = "林"; per1.SecondName = "旺"; Person per2 = new Person(); per2.FirstName = "陈"; per2.SecondName = "仁峰"; List<Person> list = new List<Person>(); list.Add(per); list.Add(per1); list.Add(per2); Repeater1.DataSource = list; Repeater1.DataBind(); } protected void RptAllOnItemDataBound(object sender, RepeaterItemEventArgs e) { Person pe = (Person)e.Item.DataItem; Literal lit = e.Item.FindControl("Others") as Literal; if (pe !=null) switch (pe.FirstName) { case "刘": lit.Text = "刘喜欢打球"; break; case "林": lit.Text = "林喜欢下棋"; break; default: lit.Text = "陈喜欢c#"; break; } } protected string Method() { return "This is a Method"; } } } |
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