Updating dataset/dataview. Please Help!

Here is my situation. I need to allow users to edit their account information (email, password, hint...). On page load I am filling a dataset from an XML file. Then loading a dataview with only the record that matches their account number and binding a data grid to that (so their is only one record in the grid and it is theirs). So when they click update I need to update the correct record in the dataset, but I cannot seem to get to the correct record. Currently I am reopening a new dataset, then using a dataview to sort and find the index of the correct record. Then updating the row in the table in the dataset, but it is not updating the correct record. Bottom line is I need to figure out how to find and update a certain record in a dataset/datatable. <br><br>Please help!!!!!!! <img border="0" src="/forum/emoticons/freaked.gif" height="30" width="18" alt="freaked" />

Ignore the above post. I have figured out how to do this using a the dataviewrow.