利用Lambda获取类中属性名称

    public class TypeInfoHelper
    {
        public static string GetPropertyName<T>(Expression<Func<T, dynamic>> property)
        {
            var propertyName = string.Empty;
            var body = property.Body;
            if (body.NodeType == ExpressionType.Convert)
            {
                var o = (body as UnaryExpression).Operand;
                propertyName = ((o as MemberExpression).Member as PropertyInfo).Name;
            }
            else if (body.NodeType == ExpressionType.MemberAccess)
            {
                propertyName = ((body as MemberExpression).Member as PropertyInfo).Name;
            }
            return propertyName;
        }
    }

先定义个实体用来测试：

    public class Product
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
    }

使用：

   var feildName = TypeInfoHelper.GetPropertyName<Product>(s => s.Description);
   Console.WriteLine(feildName);