从任意地方获取某一个类中某一个属性的字符串名称。

比如

    public class SomeThing
    {
        public string JustTest
        { get; set; }

    }

想要通过new SomeThing.JustTest返回"JustTest"

        public static string GetMemberName(LambdaExpression lambda)
        {
            var member = lambda.Body as MemberExpression;
            if (member == null) throw new NotSupportedException(
                  "The final part of the lambda is not a member-expression");
            return member.Member.Name;
        }

使用方式

            Expression<Func<object>> expr = () => new SomeThing().JustTest;
            Console.WriteLine("This is "+Utils.GetMemberName(expr));

结果：This is JustTest