InfoPath Dev

Using 2003.  I'm trying to show a value in one text field based on a selection in another field.  Field 28 is the client name, when selected I want to show the corresponding clients ID.  I'm new to InfoPath (today).  All help is greatly appreciated.

Welcome

You put a rule on field 28

Add a set field value action

Set fiedl 29 or whatever

With the client ID field from the list but add a filter(lower left) and add where client name = field28

This will set the field you want id in to the ID value that corresponds to the name chosen in field28.