IsSubClassOfRawGeneric.cs

namespace Extensions {
    public static class GenericExtensions
    {
        /// <summary>
        /// Check if class inherits a raw generic type, i.e. IEnumerable&lt;&gt;
        /// </summary>
        /// <param name="generic"></param>
        /// <param name="toCheck"></param>
        /// <returns></returns>
        public static bool IsSubClassOfRawGeneric(this Type toCheck, Type generic, bool checkInterfaces = true)
        {
            while (toCheck != null && toCheck != typeof(object))
            {
                var cur = toCheck.IsGenericType ? toCheck.GetGenericTypeDefinition() : toCheck;
                if (generic == cur)
                    return true;
                if (checkInterfaces && toCheck.GetInterfaces().Any(iface => iface.Name == generic.Name))
                    return true;
                toCheck = toCheck.BaseType;
            }
            return false;
        }
    }
}