ALLOW MULTIPLE SELECTION

In Add page, I have a control 'list page with search' and I use multiple selection,when I choose 1 or 2 elements ,it working,but when I choose 3 o more it no working!

Please help me! I use phprunner 10.2 (33322)



Try to see what the field contains using the $ value variable in the BeforeInsert event,when I choose 1 or 2 elements its fine,but when I choose more elements this variable is empty!