Hi, I have a gallery in canvas app which item's property is Sequence(10) and it has one input column which is Page count when I will enter a value in input suppose I typed 5 then there are also two labels in the gallery which should be auto calculated basis of that input like I type 5 in input box then the first label which is Start Page No. will be 1 and End Page No. will be 5 then in the next row if I type 10 then the Start Page No. should be End Page No. +1 means 6 and End Page No. for that row will be 15 because 5 pages + 10 pages equals 15 and same steps should also be followed with the next rows.