How can we calculate the Sum of one field following the selection of one row ?
In other words, when I select differents rows ,I get the sum of the value of field "Solde".
So if the 2 records shown were selected, do you want "1825" to be shown somewhere? Where do you want it shown?
In this case , I must see just 1450 , because the first row is selected.
if it was the two rows sselected , the result will be 1825.