control without binding?

[Dennis McCarthy]

I am designing a form that submits to a web service. One of the fields is a
text box that the user does not fill in directly. Instead, they select from
a drop-down list control, and a rule on that control populates the text box.
The drop-down list is populated using a secondary data source that makes a
different web service call to retireve the choices.

The problem I am having is that when I add a drop-down list control to the
form, InfoPath insists on binding it to a field. It should not be bound to
any field in the web service call for the form submit. If I bind it to the
field returned by the seconday web service data source, then InfoPath will
not allow me to set the validation.

How can I create a drop-down list control that uses a secondary data source
to get its values, but is not bound to any submit field?

Thanks,
Dennis

 

[Greg Collins [InfoPath MVP]]

Bind the drop-down list box to a node in a secondary data source. If you have to, create a new XML file to use as a secondary data source for this purpose.