Getting textbox contents into an XML stream

I have a web form that has a few textboxes that I need to insert the textbox values along with some static values, then send that data as an XML stream to a remote site for processing. I am new to the whole XML thing, so can anyone help with some pointers as to how to get started doing this? I have looked around, and there is plenty about doing the reverse, but not this. Can anyone assist?

Since your talking about web form (asp.net), see article on XML Serialization in ASP.NET. Additional reference
on How to Serialize and Deserialize in VB.NET.

-kgc