Updating XML

I have several text boxes which I'm using to update an XML document (customers field, with title, initial, firstname, surname).  So anyway I'm trying to minimise code by not having several lines like this:
node.Attributes.GetNamedItem("firstname").Value = txtFirstname1.Text;
node.Attributes.GetNamedItem("firstname").Value = txtFirstname2.Text;
node.Attributes.GetNamedItem("firstname").Value = txtFirstname3.Text;
node.Attributes.GetNamedItem("firstname").Value = txtFirstname4.Text;
etc

What would be the best way to keep code small and tight, and update each attribute with the value in the text box?  I thought of using a foreach(Control... but what would I do then?  I can't really guarantee the order (as far as I know) that they would be added to a list, and would be unable to tell which customer it is.  

All help is greatly appreciated.
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angus_young_acdcAsked:
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ToddBeaulieuConnect With a Mentor Commented:
w/o creating a test project to get the exact syntax down, I'll take a stab...

If you assign a Tag to each control, setting it's value to be the name of the Xml attribute, you could enumerate all controls and if a Tag is present, set the corresponding attribute's value. I don't know off the top of my head the correct approach to getting/setting the attribute, but it might be along the lines of attempting to get it, and if found, set it. If not found, create it/set it.
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