Casting dynamic to ObjectHandle throws RuntimeBinderException

Question

I'm trying to determine the type of a dynamic at run-time using the much publicized way of Type obtainedObjectType = ((ObjectHandle)obtainedDynamicObject).Unwrap().GetType(); but am getting a RuntimeBinderException for the ObjectHandle casting and I don't know why.

The following also throws the same error;

string myString = "ASF";
dynamic myDynamic = myString;
ObjectHandle dd = (ObjectHandle)myDynamic;

Throws: "Cannot convert type 'string' to 'System.Runtime.Remoting.ObjectHandle'

Odd thing is that I've used it at my last workplace and it was fine! Using .NET framework 4.5 (and tried with later). Any ideas?

Nikhil Vartak · Accepted Answer · 2016-04-13 20:49:45Z

1

Why to go a complicated way!? Just do:

Type myDynamicType = myDynamic.GetType();
Console.WriteLine(myDynamicType); // Output is System.String

answered Apr 13, 2016 at 20:49

Nikhil Vartak

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Mat Walker Over a year ago

Was probably the first hit in a Google search lol... Tried your example and, obviously, it worked perfectly. Not sure why using the cast to ObjectHandle is being recommended when using the GetType() method works fine... Thanks Nikhilvartak

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