ASP.NET Tutorial/Response/Cache

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SQL Server cache invalidation programmatically

   <source lang="csharp">

Dim myDependency As SqlCacheDependency = New SqlCacheDependency("Northwind", "Customers") Response.AddCacheDependency(myDependency) Response.Cache.SetValidUntilExpires(true) Response.Cache.SetExpires(DateTime.Now.AddMinutes(60)) Response.Cache.SetCacheability(HttpCacheability.Public)</source>


Using HTTP Headers to force the browser not to cache on the client-side (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">

   </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 { 

   protected void Page_Load(object sender, EventArgs e)
   {
       Response.Cache.SetCacheability(HttpCacheability.NoCache);
       Response.Cache.SetNoStore();
       Response.Cache.SetExpires(DateTime.MinValue);
       Response.Write(DateTime.Now.ToLongTimeString());
   }

}</source>


Using HTTP Headers to force the browser not to cache on the client-side (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">

   </form>

</body> </html> File: Default.aspx.vb Imports System.Web Partial Class _Default 

   Inherits System.Web.UI.Page
  
   Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
       Response.Cache.SetCacheability(HttpCacheability.NoCache)
       Response.Cache.SetNoStore()
       Response.Cache.SetExpires(DateTime.MinValue)
       Response.Write(DateTime.Now.ToLongTimeString())
   End Sub

End Class</source>

Источник — «http://www.nfex.ru/index.php?title=ASP.NET_Tutorial/Response/Cache&oldid=3455»