我如何遍历在C＃中的匿名对象的属性？ [英] How do I iterate over the properties of an anonymous object in C#?

问题描述

我要带一个匿名对象作为参数传递给方法，然后遍历其属性为每个属性/值添加到动态 ExpandoObject 。

所以，我需要的是去从

 新{为prop1 =第一个值，Prop2 = SomeObjectInstance，Prop3 = 1234}
 

要了解每个属性的名称和值，并能够将它们添加到 ExpandoObject 。

我如何做到这一点？

边注：这将在我的很多单元测试来完成（我用它来重构走在设置了大量垃圾），因此性能在一定程度上相关。我不知道有足够的了解反射肯定地说，但就我的理解是pretty表现重，所以如果可能的话，我宁愿避免它...

后续问题：
正如我所说，我是在这个匿名对象作为参数的方法。我应该在方法的签名使用的是什么数据类型？所有属性将可用，如果我使用对象？

解决方案

 的foreach（在myVar.GetType（）的GetProperties（BindingFlags.Instance VAR道具|。BindingFlags.Public））
{
   Console.WriteLine（名称：{0}，值：{1}，prop.Name，prop.GetValue（myVar的，NULL））;
}
 

I want to take an anonymous object as argument to a method, and then iterate over its properties to add each property/value to a a dynamic ExpandoObject.

So what I need is to go from

new { Prop1 = "first value", Prop2 = SomeObjectInstance, Prop3 = 1234 }

to knowing names and values of each property, and being able to add them to the ExpandoObject.

How do I accomplish this?

Side note: This will be done in many of my unit tests (I'm using it to refactor away a lot of junk in the setup), so performance is to some extent relevant. I don't know enough about reflection to say for sure, but from what I've understood it's pretty performance heavy, so if it's possible I'd rather avoid it...

Follow-up question: As I said, I'm taking this anonymous object as an argument to a method. What datatype should I use in the method's signature? Will all properties be available if I use object?

解决方案

foreach(var prop in myVar.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
   Console.WriteLine("Name: {0}, Value: {1}",prop.Name, prop.GetValue(myVar,null));
}

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