如何使用dynamic关键字从COM Object获取属性 [英] How to get properties from COM Object using the dynamic keyword

问题描述

我有一个从第三方API返回的COM对象。该COM对象具有一个属性，该属性具有关于该对象的大量系统信息...返回的属性的类型为 System.Object。

I have a COM object returned from a 3rd party API. This COM object has a property on it that has a bunch of system information regarding that object... the property returned is of type "System.Object".

调试时这个COM对象，我看到了我感兴趣的属性，Visual Studio调试器（2012）将动态视图附加到该对象，让我看到它是某些对象的数组，例如字典...

When debugging this COM object, I see the property I'm interested in, and the Visual Studio debugger (2012) attaches a dynamic view to that object, allowing me to see that it's an array of some object like a dictionary...

我能够对一些动态关键字用法进行硬编码，以从我关心的对象中提取值，例如：

I'm able to hard code some dynamic keyword usage to extract the value out of this object that I care about, like this:

var temp = ((dynamic)myObject.someProperty)[11].ValueString;

虽然可行，但显然存在更好的方法，因为Visual Studio调试器能够枚举并显示该对象的内容是动态的...

While this works, there's obviously a better way, as Visual Studio debugger is able to enumerate and display the contents of this object dynamically...

我该如何在C＃中实现相同的目的，最好不使用任何互操作方法，并使用dynamic关键字？

How can I achieve the same thing in C#, preferably without using any interop methods, and with the dynamic keyword?

推荐答案

我找到了一种解决方法：

I found one way of doing it:

        var myObject = ((dynamic)comObject.someProperty);
        foreach (var index in myObject)
        {
           // This will loop over each object in the array
        }

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