• C#读取匿名对象


    通过new出匿名对象,可以直接调用该匿名对象的属性名,获取属性值。

    var objUser = new {Name="Lilei",Age=18 };
    //此时可直接读取匿名类属性
    Console.WriteLine("Name:" + objUser.Name);// Name:Lilei

    但当将匿名对象转换成object后,就无法直接读取属性值了;

    static object GetObj()
    {
        var obj = new { Name = "Lilei", Age = 18 };
        return obj;
    }
    static void Main(string[] args)
    {
        var obj = GetObj();//此时已无法通过obj.Name的方式获取属性值了
    }

    1、通过反射的方式获取属性值

    static object GetObj()
    {
        var obj = new { Name = "Lilei", Age = 18 };
        return obj;
    }
    static void Main(string[] args)
    {
        var obj = GetObj();
        //此时可通过反射的方式获取属性值
        string objName = obj.GetType().GetProperty("Name").GetValue(obj).ToString();
        Console.WriteLine(objName);// Lilei
    }
     var Data = this.GetWorkHours(QueryDto);
     var Result = Data.GetType().GetProperty("Result").GetValue(Data); // 反射获取获取 Result
     var dtoList = Result.GetType().GetProperty("dtoList").GetValue(Result); //再通过Result获取dtoList

    2、新建个扩展方法,将object转成对应的匿名对象

    class Program
    {
        static void Main(string[] args)
        {
            var obj = GetObj();
            var user = obj.ObjCast(new { Name = "", Age = 0 });
            Console.WriteLine("Name:{0},Age:{1}", user.Name, user.Age);// Name:Lilei,Age:18
    
              var objList = GetObjList();
              var userList = objList.Select(p => p.ObjCast(new { Name = "", Age = 0 })).ToList();
              userList.ForEach(p =>
              {
                Console.WriteLine("Name:{0},Age:{1}", p.Name, p.Age);
              });
              // Name:Lilei,Age:18
              // Name:HanMeimei,Age:20
        }
        static object GetObj()
        {
            var obj = new { Name = "Lilei", Age = 18 };
            return obj;
        }
        static List<object> GetObjList()
        {
            List<object> objList = new List<object>();
            objList.Add(new { Name = "Lilei", Age = 18 });
            objList.Add(new { Name = "HanMeimei", Age = 20 });
            return objList;
        }
    }
    static class Extensions
    {
        public static T ObjCast<T>(this object obj, T sample)
        {
            return (T)obj;
        }
    }

    原文:https://www.cnblogs.com/willingtolove/p/11204018.html

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  • 原文地址:https://www.cnblogs.com/LinWenQiang/p/14988446.html
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