How to parameterize different fields in one single datasource
I read the user guide and couldn't find much info on using an external file as datasource. Here is my scenerio: I have three fields (firstName, lastName, displayName) that I want to parameterize 10 rows of values for each. Do I need to create three separate datasources (1 datasource for 1 field) or can I do that in 1 single datasource? If I am allowed to do that in 1 single datasource, I suppoose I need to add 3 properties in the datasource panel, firstName, lastName, displayName, respectively. Then in the external text file (delimited by a comma), what is the format that I need to use so I can paramertize 10 values for each field?