Historical values - react to only specific selections
Hi,
in principle, this is quite easy:
- By using the {1} parameter, I first make the values displayed in my "historical values" chart independent of selections.
- => Then I add two set_expressions defining the year and week for which the value should be displayed.
- => Last, I add Werk = P(Werk) to make the values react to selections in the selection_listbox of that field
<=> It doesn't work like that: Last week (week_3), there is data to be displayed only for one of the three plants we have available in the listbox Werk, the other two are grey => when I add that last bit to the set_expression, the chart goes whoof (it disappears). When I delete it again, there is my chart.
=> Is there another set_operator I might use instead?
