How to detect which .NET runtime is being used (MS vs. Mono)?

Question

I would like to know during execution of a program whether it is being executed using the Mono runtime or the Microsoft runtime.

I\'m currently using the following

Answer 1

Here's a version with caching that I'm using in my project:

public static class PlatformHelper
{
    private static readonly Lazy IsRunningOnMonoValue = new Lazy(() =>
    {
        return Type.GetType("Mono.Runtime") != null;
    });

    public static bool IsRunningOnMono()
    {
        return IsRunningOnMonoValue.Value;
    }
}

As @ahmet alp balkan mentioned, caching is useful here if you're calling this frequently. By wrapping it in a Lazy, the reflection call only happens once.