Hi Andy,
Your drop-down is linked to a node (f1) in your schema. You need to copy
the value to the node (f2) behind your textbox.
You can do this easily by code behind your form using ofr example C#;
In the OnAfterChange Event of your drop down, just use code such as:
IXMLDOMNode oN1 =
thisXDocument.DOM.selectSingleNode("/my:Folder1/..../my:f1");
IXMLDOMNode oN2 =
thisXDocument.DOM.selectSingleNode("/my:Folder1/..../my:f2");
f2.text = f1.text;
Hope this helps.
Franck Dauché