得到匿名类型值 [英] Get value from anonymous type

问题描述

我有一个方法如下：

public void MyMethod(object obj){

  // implement

}

和我叫它是这样的：

MyMethod(new { myparam= "waoww"});

那么，怎样才能实现我的MyMethod（）来得到myparam价值？

So how can I implement MyMethod() to get myparam value?

修改

我用这样的：

dynamic d= obj; 
string param = d.myparam; 

但错误崛起：

'object' does not contain a definition for 'myparam' 

我也使用断点，我看到了D的myparam字符串属性。

also I use breakpoint and I see the d have myparam string property.

和有没有什么办法来检查动态类型，如果含有这样的财产：

And is there any way to check dynamic type to if contain any property like this:

if(d.contain(myparam))?

修改II

这是我的主要code：

This is my main code:

public static MvcHtmlString SecureActionLink(this HtmlHelper htmlHelper, 
         string linkText, string actionName, string controllerName, 
         object routeValues, object htmlAttributes) {


    string areaName = 
         (string)htmlHelper.ViewContext.RouteData.DataTokens["area"];

        dynamic areaObject = routeValues;

        if(areaObject != null && !string.IsNullOrEmpty(areaObject.area))
            areaName = areaObject.area;

// more
}

和称呼其为：

<p>@Html.SecureActionLink("Secure Link between Areas", "Index", "Context", 
                          new { area = "Settings" }, null)</p>

和错误是：

Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: 'object' does not contain a
 definition for 'area'

 Line 303:  dynamic areaObject = routeValues;
 Line 304:
 Line 305:  if(areaObject != null && !string.IsNullOrEmpty(areaObject.area))
 Line 306:      areaName = areaObject.area;
 Line 307:

 Source File: D:\Projects\MyProject\HtmlHelpers\LinkExtensions.cs    Line: 305 

修改III

这是我的HtmlHelper定义的程序集信息：

This is my AssemblyInfo of HtmlHelper definition:

[assembly: AssemblyTitle("MyProject.Presentation")]
[assembly: InternalsVisibleTo("cpanel.MyProject.dev")]

但有错误尚未：对象不包含区域的定义
我用不同的组件却怎么也有可能，当我使用断点，我可以看到我的动态 areaobject 有区域名称财产，也是我能看到的价值，但错误说：对象不包含区域的定义我想不出它如何能够可能吗？

but there is an error yet: 'object' does not contain a definition for 'area' I use different assemblies but how can it possible, when I use breakpoint I can see that my dynamic areaobject have area name property and also I can see the value of that, but the error say: 'object' does not contain a definition for 'area' I can't figure it how it can be possible?

修改

我改变了装配，现在的动态类型是内部的，但之前

I change the assembly and now dynamic type is internal but the error remains as before

推荐答案

使用这样的：

string area = areaObject.GetType().GetProperty("area").GetValue(areaObject, null);

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