Hi everyone,
I'm creating an app that allows users to input their own file and add additional fields from a DataSource. Instead of needing each user to have the field format match identically to what the DataSource is I wanted to allow them to select the field in their input that will join with the Datasource. The problem I am having is that upon selecting the input file the list of fields isn't generating from the file allowing the user to select the field that will join with the DataSource.
Where am I going wrong?
