Compile and run dynamic code, without generating EXE?

Question

I was wondering if it was possible to compile, and run stored code, without generating an exe or any type of other files, basically run the file from memory.

Basical

Answer 1

It's possible. It's easy or hard, depending on how much and what kind of code you want to write.

• Compile one-line expressions: System.Linq.Expressions (straightforward but limited)
• Compile whole programs: System.Reflection.Emit (hard to debug, but not impossible)

Edit: Note that, prior to .NET 4.0, System.Linq.Expressions is limited to what you can fit on a single line of C#: that is, no if, while, variable assignment etc.