CachePolicy Property

UserControl.CachePolicy Property

Gets a reference to a collection of caching parameters for this user control.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

public ControlCachePolicy CachePolicy { get; }

Property Value

Type: System.Web.UI.ControlCachePolicy
A ControlCachePolicy containing properties that define the caching parameters for this UserControl.

The CachePolicy property defines the cache parameters for the instance of the UserControl class. The CachePolicy property is read-only; however, you can set the properties of the ControlCachePolicy object that it returns.

The CachePolicy property can not be set declaratively. It must be set programmatically.

The following code example demonstrates how to use the SupportsCaching property to determine whether the user control can be cached, and if so, sets the Duration property to cache the control for 10 seconds.

<%@ page language="C#"%>
<%@ register src="SimpleControlcs.ascx" 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<script runat="server">
void Page_Init(object sender, EventArgs e)
  // If the control is already in the cache, calling properties
  // will throw an exception. Make sure the control is available. 
  if (SimpleControl1 != null)


    if (SimpleControl1.CachePolicy.SupportsCaching)
      // Set the cache duration to 10 seconds.
      SimpleControl1.CachePolicy.Duration = new TimeSpan(0, 0, 10);



.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

© 2016 Microsoft