How to get nested gallery checkbox count

[chinuramesh87]

I have Done first gallery as group by and added one column for first gallery and rest of the columns added in the second gallery. In the second gallery I have Added checkbox with item.id value. When I am checking second gallery check box I want to get the count but when I am trying countrows(editgallery.allitems,editformcheckbox.value) I did not get value. Can any one help me to get out of this issue. 

[CNT · Accepted solution]

@chinuramesh87 A much simpler approach would be use a global variable set in the OnVisible of your screen,

Set(countCheckBoxes, 0)

In the OnCheck of the checkbox,

Set(countCheckBoxes, countCheckBoxes+1)

In the OnUncheck of the checkbox,

Set(countCheckBoxes, countCheckBoxes-1)

the countCheckBoxes variable will always have the correct count!

Hope this helps!