ASP.NET Tutorial/ASP.net Controls/Substitution

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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>

Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/ASP.net_Controls/Substitution&oldid=3355»