What metadata is cacheable?

Dec 11, 2008 at 2:42 AM
Is there any guidance on what type of metadata values are cacheable?  If a value is a Type or an ImageSource it does not seem like it could be cached.  Does the value type have to to be serializable or are there some other rules? 

Thanks for any information.
Dec 15, 2008 at 12:55 AM
So i just learned that attributes can only be a constant expression, typeof expression or array creation expression of an attribute parameter type.  This pretty much explains what is cacheable.  I'm still a little curioius if Types are cacheable?