I am trying to use a variable to determine which data I have to use in my expression. See the attached document for an example.
In this example I got on the right side the outcome how I want it to be. But there I am using a large IF(..)-function like:
IF (Keuzelijst1.Keuzelijst1 = 'Been', (Sum(Been)),
IF (Keuzelijst1.Keuzelijst1 = 'BMI', (Sum(BMI)),
IF (Keuzelijst1.Keuzelijst1 = 'Buik', (Sum(Buik)),
IF (Keuzelijst1.Keuzelijst1 = 'Calorieën', (Sum(CalWeek)),
IF (Keuzelijst1.Keuzelijst1 = 'Heup', (Sum(Heup)),
IF (Keuzelijst1.Keuzelijst1 = 'Gewicht', (Sum(Gewicht)),
IF (Keuzelijst1.Keuzelijst1 = 'Vet%', (Sum(Vet%)))))))))
I want to get rite of this because it isn't flexible at all. To accomplish this I made 2 inline tables with the names of the fields I want to use in my expression. And 2 variables that display the selected field.
What I want is to use the result as this:
SUM('variable') (in my case SUM(vKeuze1) or SUM('vKeuze1'))
