Unity Mono - Not implemented method - Workaround needed

Hi,

I was trying to use the .Net/Mono method XDocument.Validate() which can be used to validate an XML file against an XSD (schema) file. Calling the method throws a “not implemented” exception. So I guess the Mono version used by Unity has no implementation for this method.

The question is, is there a suitable cross platform approach to overcome this issue? I need this for an editor extension so it should work on both Windows and Mac.

Thanks for your help!

Would it be possible to create a dll using the latests Mono version and use this dll in Unity to overcome this limitation?