I'll be posting some examples on whidbey. This one is on whidbey (Visual Studio 2005) ASP.NET registration. Walkthrough and code.
This entry explores whidbey's DataSetDataSource. Lets start with the xml file.
Next we derive a schema from our xml data
Now we can create DataSetDataSource and consume it from a datagrid
Now you can access your aspx page and browse, edit, update, or delete the xml file entries.