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);