C# how can I use #if to have different compile result for debug and release?

Question

In C++ we can use #ifdef to eliminate some debug statements when we release. C# is different from C++ in preprocessor. Can I still get the same result useing C# #if. We want to

Answer 1

You can wrap code in:

#if DEBUG

// debug only code

#endif

However, I don't recommend this. It's often a better alternative to just make a method and flag it with the [Conditional("DEBUG")] attribute. See Conditional on MSDN for more details. This allows you to make debug only methods:

[Conditional("DEBUG")]
public void DebugPrint(string output) { // ... 
}

Then, you can call this normally:

DebugPrint("Some message"); // This will be completely eliminated in release mode