HOWTO: Get All Types that implement an interface from a specified assembly

To get all types that implement a specific interface from a specified assembly using generics, you can use the following code snippet:

using System;
using System.Linq;
using System.Reflection;

public static class TypeExtensions
{
    public static Type[] GetTypesImplementingInterface<T>(this Assembly assembly)
    {
        Type interfaceType = typeof(T);

        return assembly.GetTypes().Where(t => interfaceType.IsAssignableFrom(t) && t != interfaceType).ToArray();
    }
}

// Usage
Assembly assembly = Assembly.GetExecutingAssembly();
Type[] implementedTypes = assembly.GetTypesImplementingInterface<{Interface Type}>();

In the code above, we define an extension method for Assembly that uses generics to find all types in the assembly that implement the specified interface. We use typeof(T) to get the type of the interface we want to find implementations for, and then use assembly.GetTypes() to get all types in the assembly. Finally, we use LINQ to filter the types down to only those that implement the interface using types.Where(t => interfaceType.IsAssignableFrom(t) && t != interfaceType).ToArray().

This will return an array of types that implement the specified interface.

I hope this helps!