I know that i can use the VaryByParam attribute, but what it does is not exactly what i am aiming for.
What happens is that different versions of the page are cached based on the query string.
For example Page.aspx?ID=Tom has its own cached version and ID=Arnold has another. Now what i want to do is not to cache Arnold at all. I only want to cache the page when the query string is Tom.
Any ideas?
For C#
public static void cacheOutput(Page page, double minutes)
{
page.Response.Cache.SetExpires(DateTime.Now.AddMinutes(minutes));
page.Response.Cache.SetCacheability(HttpCacheability.Server);
page.Response.Cache.SetValidUntilExpires(true);
}
It's better to take a double for minutes. Good solution! Thx!
Try to use VaryByCustom and override GetVaryByCustomString method in the Application class.
<Extension()> _
Public Sub CacheOutput(ByVal Page As Page, ByVal Minutes As Integer)
Page.Response.Cache.SetExpires(Date.Now.AddMinutes(Minutes))
Page.Response.Cache.SetCacheability(HttpCacheability.Server)
Page.Response.Cache.SetValidUntilExpires(True)
End Sub
This works. Note that any version of the page that has a querystring or a POST parameter will not be cached.