how to query a dataset with xml tables inside.

[Mark Cushman]

I have two xml docs, authors & articles. Both have authorID as a common node

<?xml version="1.0" encoding="utf-8"?>
<!--This is a comment-->
<Authors>
<Author>
<AuthorID>0</AuthorID>
<Name>Mark</Name>
<Login>mark</Login>
<Pwd>markpwd</Pwd>
</Author>
<Author>
<AuthorID>1</AuthorID>
<Name>Ken</Name>
<Login>ken</Login>
<Pwd>kenpwd</Pwd>
</Author>
</Authors>

<?xml version="1.0" encoding="utf-8"?>
<!--This is a comment-->
<Articles>
<Article>
<ArticleID>0</ArticleID>
<ArticleTitle>The Very First Article</ArticleTitle>
<ArticleBody>Body of first aritcle</ArticleBody>
<AuthorID>0</AuthorID>
</Article>
<Article>
<ArticleID>1</ArticleID>
<ArticleTitle>Second Article</ArticleTitle>
<ArticleBody>Second Body </ArticleBody>
<AuthorID>0</AuthorID>
</Article>
<Article>
<ArticleID>2</ArticleID>
<ArticleTitle>Third Article</ArticleTitle>
<ArticleBody>3333333333333333 Body </ArticleBody>
<AuthorID>1</AuthorID>
</Article>
</Articles>
I put both tables into a dataset, created a datarelation

dsR.Relations.Add("dsRdsU",dsR.Tables["Author"].Columns["AuthorID"],dsR.Tables["Article"].Columns["AuthorID"]);

Question is, how do I set the source of a datagrid to show the AritcleTitle - Name pair?

DGFileList.DataSource = ???
DGFileList.DataBind();

If a dataset is an in-memory database then I should be able to query it somehow. I have not seen any examples on the net.

TIA,
Mark