User-1122939121 posted
Is it possible to have the Varybycustom string supplied/created by the page in a Web Forms App?
I have a page with a search filter and I want to create a string in the page like "Color:Red;Size:Lg" and have the cached item be created based on that parameter.
All of the examples I've seen use an existing variable that already exists in HttpContext. Everything I have tried so far doesn't seem to work. A property on the page can be read but the timing is somehow wrong to create anything but the very first cache
entry. I can read a cookie from the GetVaryByCustomString but when I set a cookie on the page I want to cache it seems to remove caching from the page, GetVaryByCustomString never fires.
I don't understand how Varybycustom would be very useful if you can't actually supply a custom string. I can set a string by using Response.Cache.SetVaryByCustom(SomeOutputCacheKey); but that produces weird results. It seems to create unique cache
entries the first couple of times but after a point all of the autopostback stuff seems to quit working. Using varybyparam="*" the first trip produces and entry for the page and an entry for webresource.axd file so I get a total of 4 cache entrys. The second
trip will give me 8 cache entries but the third try will always just return the second entry.
Is what I'm trying to do even possible?
