ASP.NET Tutorial/ASP.net Controls/Substitution — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Версия 18:30, 26 мая 2010
Using the substitution control (C#)
<source lang="csharp">
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <%@ OutputCache Duration="30" VaryByParam="None" %> <html xmlns="http://www.w3.org/1999/xhtml" > <head>
<title>Substitution Control</title>
</head> <body>
<form id="form1" runat="server">
<asp:Label ID="Label1" Runat="server" Text="Label"></asp:Label>
<asp:Substitution ID="Substitution1" Runat="server" methodName="GetUpdatedTime" />
</form>
</body> </html> File: Default.aspx.cs using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class _Default : System.Web.UI.Page {
public static string GetUpdatedTime(HttpContext context) { return DateTime.Now.ToLongTimeString() + " by " + context.User.Identity.Name; } protected void Page_Load(object sender, EventArgs e) { Label1.Text = DateTime.Now.ToLongTimeString(); }
}</source>
Using the substitution control (VB)
<source lang="csharp">
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <%@ OutputCache Duration="30" VaryByParam="None" %> <html xmlns="http://www.w3.org/1999/xhtml" > <head>
<title>Substitution Control</title>
</head> <body>
<form id="form1" runat="server">
<asp:Label ID="Label1" Runat="server" Text="Label"></asp:Label>
<asp:Substitution ID="Substitution1" Runat="server" methodName="GetUpdatedTime" />
</form>
</body> </html> File: Default.aspx.vb
Partial Class _Default
Inherits System.Web.UI.Page Public Shared Function GetUpdatedTime(ByVal context As HttpContext) As String Return DateTime.Now.ToLongTimeString() + " by " + _ context.User.Identity.Name End Function Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) _ Handles Me.Load Label1.Text = DateTime.Now.ToLongTimeString() End Sub
End Class</source>