InfoPath Dev

I am looking into figuring out how to capture the entire xml of the form on submit. I have added a small piece of code to the FormEvents_Submit and tried stepping through the code, but nothing is returning what identifies the full XML. Does anyone have any suggestions on how to capture this, or if it can be captured?

What language / OM are you using? I'd think this would do it....

this.MainDataSource.CreateNavigator().OuterXml;