Example, I have table below..
Week, Quantity
1, 10
1, 15
1, 10
2, 20
2, 30
3, 10
3, 50
I also have a list box for 'Week' which is current selected on week 2.
Now, I want to create text object which shows the value of sum of quantity of week 1 (ie. 35), which will always show that result even when the list box is selected on week 2. How can I achieve this?
Currently I managed to do an expression which sums week 1 but as soon as I select week 2 it shows 0 ....