I've set up an Infopath form which uses a relational Access database as
the main datasource and an SQL Server database as the secondary
datasource.   I'm using the value of one textbox in the form to filter
information from the secondary database.  I've been able to get this
working in a dummy form which only has the secondary database using

var objEmpId;    
      objEmpId =
XDocument.DOM.selectSingleNode("//my:myFields/my:txtEmpId").text;

I've tried to get this working on my other form but can't get the value
from the texbox.  I've been testing using a message box but the closest
I can come is having the message box appear (I was getting errors
before I got to this stage) but it's blank.  I have another message box
which displays the SQL statement being passed to the database and the
field comes up as undefined.

The code I have is
      var objEmpId;    
     
      objEmpId =
XDocument.DOM.selectSingleNode("//dfs:myFields/dfs:dataFields/d:tbl_Employee/@UserCode").Text

Any help will be greatly appreciated!