HttpApplication.GetVaryByCustomString(HttpContext, String) Method
Definition
Important
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Provides an application-wide implementation of the VaryByCustom property.
public:
virtual System::String ^ GetVaryByCustomString(System::Web::HttpContext ^ context, System::String ^ custom);
public virtual string GetVaryByCustomString (System.Web.HttpContext context, string custom);
abstract member GetVaryByCustomString : System.Web.HttpContext * string -> string
override this.GetVaryByCustomString : System.Web.HttpContext * string -> string
Public Overridable Function GetVaryByCustomString (context As HttpContext, custom As String) As String
Parameters
- context
- HttpContext
An HttpContext object that contains information about the current Web request.
- custom
- String
The custom string that specifies which cached response is used to respond to the current request.
Returns
If the value of the custom
parameter is "browser"
, the browser's Type; otherwise, null
.
Remarks
You can override GetVaryByCustomString to add a new method for calculating custom vary-by values that are based on the current request. The implementation has to call the base class for custom values that it does not recognize. For more information, see How to: Cache Versions of a Page Using Custom Strings.