Speeding up Reflection API with delegate in .NET/C#

Question

This post has the comment if you need to call the method multiple times, use reflection once to find it, then assign it to a delegate, and then call the delegate.

Answer 1

A delegate is simply a pointer to a function. If you're using reflection (at all) there is generally a lot of overhead associated with it. By finding this methods address once and assigning that address to your delegate variable, you are in effect caching it.

So, it's not the "delegate" type that works faster, it's just that you're "computing" once and "using" it multiple times that grants you the speed increase.