AspNet WebApi POST parameter is null when sending XML

Question

I have a web api service originally using beta bits which I\'ve rebuilt using the release candidate bits and I\'m now having this problem.

I have a POST action that

Answer 1

I was having the same problem as you, and found the solution by serializing the object using the XmlMediaTypeFormatter as described here: http://www.asp.net/web-api/overview/formats-and-model-binding/json-and-xml-serialization#testing_object_serialization. I used the code in the "Testing Object Serialization" section at the bottom of the article, and replaced his Person object with my model.

When I serialized my object, I noticed that the following attributes were added to the root node:

xmlns:i="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://schemas.datacontract.org/2004/07/NAMESPACE.OF.YOUR.MODEL"

If you add these attributes to your xml like so, your controller should correctly serialize the requestValues object:

  
  
  
    
      ClientName
      Client One
    
    
      ClientName
      Client Two