CODEWITHSUNDEEP
c#com
mariocatch
mariocatch

Reputation: 8703

How to get properties from COM Object using the dynamic keyword

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".

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...

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;

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...

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

Upvotes: 1

Views: 3161

Answers (2)

mariocatch
mariocatch

Reputation: 8703

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
        }

Upvotes: 2

Blindy
Blindy

Reputation: 67380

Visual Studio's Debugger uses reflection to enumerate fields and properties for objects of any kind.

Type.GetProperties

Upvotes: 0

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