System.Runtime.Serialization.Plists.Extensions.GetConcreteTypeIfNullable C# (CSharp) Method

        public static Type GetConcreteTypeIfNullable(this Type type)
        {
            if (type == null)
            {
                throw new ArgumentNullException("type", "type cannot be null.");
            }

            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>))
            {
                return type.GetGenericArguments()[0];
            }

            return type;
        }