You want to display a value list of Period, yet Period is part of your relationship. This means two things:
1) You won't see anything until the WebView::Period field is given a value.
2) Even if you give it a value, it won't show anything but the period it matches.
I'm not entirely sure what you're trying to do, but you might try removing the Period field from the relationship and showing only the Teranga field.
I have a table with 100 000+ records of archived finance information. each month i do an pre-invoicing for all the units in the company.
Now am going to build this so its accesseble by the units. One of the steps is to list all costs that was for a unit (Teranga) per period. The period is built with "YYYY-MM" format.
So, the user chooses Teranga (unit), then under period i want the periods valid for that unit to be shown in the ValueList.
i tested what you suggested by removing the relationship of "Period" and instead put in the field "Start Period" instead. and then did a "Start Period" = "Period". since i have a portal below that shows the information from the archive table.. But it didnt work.. :/
Stigge - can you post what your Value List setup looks like now? I've had a similar issue with this and would like to see which relationship is where.