Can you use multiple VaryByCustom parameters when caching a user control?

Question

I've been trying this a couple of different ways, but it's not working for some reason. Is it even possible?

Answer 1

Yes. Separate them in your declaration by semicolons.

Answer 2

If you are overriding GetVaryByCustomString() in the Global.asax.cs file, you can pass in a semicolon delimited list of values which you then need to parse.

There is one built-in value (Browser) which will be used if the attribute specified does not exist.