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
}
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;
}
}
——————————————————————————