| title | IHttpCachePolicy2::IsForceUpdateSet Method |
|---|---|
| description | Learn how the IsForceUpdateSet method gets a value that determines if the force update flag has been set. |
| ms.date | 10/07/2016 |
| ms.assetid | 68106133-322a-4e6a-9178-b5e4496bd438 |
Gets a value that determines if the force update flag has been set.
virtual BOOL IsForceUpdateSet(
VOID
) const = 0; -
Certain modules need the ability to evaluate requests and update the cache based on variations of the request. The IHttpCachePolicy2::SetForceUpdate Method method ensures that the cache is updated. A module may keep track of the criteria needed to update the module cache and call this method. Additionally, modules may call
IsForceUpdateSetto determine if the force update value has been set. -
CHttpModule derived classes that register for request or response events receive an IHttpContext pointer as a parameter on the corresponding
virtualmethod. To enable caching, call the IHttpContext::GetResponse method, the IHttpResponse::GetCachePolicy method, and finally the IHttpCachePolicy::SetIsCached Method method.
| Type | Description |
|---|---|
| Client | - IIS 7.0 on [!INCLUDEwinvista] - IIS 7.5 on Windows 7 - IIS 8.0 on Windows 8 - IIS 10.0 on Windows 10 |
| Server | - IIS 7.0 on [!INCLUDEwinsrv2008] - IIS 7.5 on Windows Server 2008 R2 - IIS 8.0 on Windows Server 2012 - IIS 8.5 on Windows Server 2012 R2 - IIS 10.0 on Windows Server 2016 |
| Product | - IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0 - [!INCLUDEiisexp75], [!INCLUDEiisexp80], [!INCLUDEiisexp100] |
| Header | Httpserv.h |