>So does the List-based method you suggested work for binding to WPF UI controls, and will it lend to updating the SQL tables using the Linq-to-Sql SubmitChanges method?

Should work fine for SubmitChanges as long as the context is still open. I'm copying the data over into ObservableCollections and SubmitChanges is still working fine.

>My plan is to create a detail edit form with VCR Buttons and a bunch of TextBoxes nested in a ContentControl to display the data from the table. Then, when the user finds the desired record, and edits the data in the TextBoxes, I will have a Save Button to commit the changes to the SQL table, via the Linq-to-Sql features.

Remember that SubmitChanges saves all changes in the context not just a single record.