How to lock GetUserProfileByName value when InfoPath form was submitted

Question

I have created InfoPath form that collects information from the user (name, department, manager etc...) using GetUserProfileByName method. I have also created a workflow for this form so that once it is submitted, it will send an email to his manager to approve this form.

While workflow is working fine, every time the manager open the form, his data is populated on the field instead of submitter's (Obvious since it will collect data from logged-on user). Another field that is not using GetUserProfileByName method was not affected.

Is there a way to preserve the value once the form was submitted?

Answer 1

Create a rule that checks if the value is blank before fetching the User Name. Then when the manager opens the forms the value will be present and your code will detect and not change the value.

Answer 2

Found a workaround for this.

I created hidden field Person that store value from ObserverName field.

Then i created rule on Form Load that check if Created By field is NOT blank, it will not query for data connection then set ObserverName field with value from Person.

I chose Created By field because it sure contain value after the form have been submitted though you can choose any other non-blank field.