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ASP.Net/Data Binding/Binding expression - История изменений
2026-04-29T16:43:03Z
История изменений этой страницы в вики
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http://nfex.ru/index.php?title=ASP.Net/Data_Binding/Binding_expression&diff=2068&oldid=prev
в 15:30, 26 мая 2010
2010-05-26T15:30:47Z
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http://nfex.ru/index.php?title=ASP.Net/Data_Binding/Binding_expression&diff=2069&oldid=prev
Admin: 1 версия
2010-05-26T11:52:14Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==Binding to a Method==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<br />
<%@ Page Language="C#" %><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Binding to a Method</title><br />
<script runat="Server"><br />
protected string GetImageName(object dataItem)<br />
{<br />
int reorderPoint = Int32.Parse(DataBinder.Eval(dataItem, "ReorderPoint").ToString());<br />
if (reorderPoint < 100 )<br />
return "LessThan100.bmp"; <br />
else<br />
return "MoreThan100.bmp";<br />
}<br />
</script><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<asp:SqlDataSource ID="productsSource" runat="server"<br />
ProviderName="System.Data.SqlClient" <br />
ConnectionString="<%$ ConnectionStrings:AdventureWorks %>"<br />
SelectCommand="Select ProductID, Name, ProductNumber, DaysToManufacture, SellStartDate, ReorderPoint from Production.Product"> <br />
</asp:SqlDataSource><br />
<asp:GridView ID="gridProducts" runat="server" DataSourceID="productsSource"<br />
AutoGenerateColumns="False"> <br />
<Columns><br />
<asp:TemplateField HeaderText="Products"><br />
<ItemTemplate><br />
<b><br />
<%# Eval("ProductID") %> - <%# Eval("Name") %> <br />
</b><br />
<hr /><br />
<small><br />
<i><br />
Product Number: <%# Eval("ProductNumber") %><br /><br />
Days to manufacture:<%# Eval("DaysToManufacture") %> <br /><br />
Start Date: <%# Eval("SellStartDate", "{0:MM/dd/yy}") %><br /> <br />
</i><br />
<br/><br/><br />
<img src="Images/<%# GetImageName(Container.DataItem) %>" /><br />
Reorder Point:<%# Eval("ReorderPoint") %><br />
</small><br />
</ItemTemplate><br />
</asp:TemplateField> <br />
</Columns><br />
</asp:GridView><br />
</div><br />
</form><br />
</body><br />
</html><br />
File: Web.config<br />
<configuration><br />
<appSettings/><br />
<connectionStrings><br />
<add name="AdventureWorks" <br />
connectionString="Data Source=localhost\SQLEXPRESS;Initial Catalog=AdventureWorks;Integrated Security=True"<br />
providerName="System.Data.SqlClient" /><br />
</connectionStrings><br />
<system.web><br />
<compilation debug="true" strict="false" explicit="true"><br />
<codeSubDirectories><br />
<add directoryName="VB"></add><br />
<add directoryName="CS"></add><br />
</codeSubDirectories><br />
</compilation><br />
<pages><br />
<namespaces><br />
<clear/><br />
<add namespace="System"/><br />
<add namespace="System.Collections"/><br />
<add namespace="System.Collections.Specialized"/><br />
<add namespace="System.Configuration"/><br />
<add namespace="System.Text"/><br />
<add namespace="System.Text.RegularExpressions"/><br />
<add namespace="System.Web"/><br />
<add namespace="System.Web.Caching"/><br />
<add namespace="System.Web.SessionState"/><br />
<add namespace="System.Web.Security"/><br />
<add namespace="System.Web.Profile"/><br />
<add namespace="System.Web.UI"/><br />
<add namespace="System.Web.UI.WebControls"/><br />
<add namespace="System.Web.UI.WebControls.WebParts"/><br />
<add namespace="System.Web.UI.HtmlControls"/><br />
</namespaces><br />
</pages><br />
<authentication mode="Windows"></authentication><br />
<identity impersonate="true"/><br />
</system.web><br />
</configuration><br />
</source><br />
<br />
<br />
<br />
<br />
==Data binding expression==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<br />
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Default" Debug="true" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Data-bound Expressions</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<h2>Today is <br />
<asp:Label ID="Today" runat="server" Text="<%# DateTime.Now %>" /><br />
</h2><br />
</form><br />
</body><br />
</html><br />
File: Default.aspx.cs<br />
using System;<br />
using System.Web.UI;<br />
using System.Web.UI.WebControls;<br />
using System.Text;<br />
public partial class Default : System.Web.UI.Page<br />
{<br />
protected void Page_Load(object sender, EventArgs e)<br />
{<br />
DataBind();<br />
}<br />
}<br />
</source></div>
Admin