What is the difference between “compile time” and “run time”?

Question

I do not understand what is meant by the terms \"compile time\" and \"run time\" (or \"runtime\").

I\'m also a bit confused about what \"value type\" and \"reference ty

Answer 1

"Compile time" is when you build your code - when the compiler converts your source code into IL.

"Runtime" is when your code is executed - for ASP.NET, when a page request is made. (Personally I prefer the term "execution time" to distinguish between that and "the Common Language Runtime (CLR)" - aka the virtual machine.)

Value types and reference types are an entirely separate concept, but I have an article about them which you may find useful.