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c# - How to set WebClient Content-Type Header?

To conect to a third party service I need to make a Https Post. One of the requisites set is to sent a custom content type.

I'm using WebClient, but I can't find how to set it. I've tried making a new class and overriding the CreateRequest Method, but that make request crash.

Is there any way to do that without having to rewrite CopyHeadersTo method?

EDIT CopyHeaderTo is a method I've seen using .NET Reflector. It's invoked from GetWebRequest and sets all Request Headers, including Content-Type, from private properties.

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You could try adding to the Headers collection.

myWebClient.Headers.Add("Content-Type","application/xxx");

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