Report Viewer Cell Calculation

[konsistek]

Hello Dear Friends,

In report viewer, I prepared a template for archive values hourly reports like below. I can run the report with 1st and 2nd columns but if I add 3rd column with formula, it is not working.

How can I solve this issue?

Thanks.

1st col       2nd col               3rd col
 Hour     Counter Value       Difference
00:00           15                 25-15=10
01:00           25                 35-25=10
02:00           35                 45-35=10
03:00           45                 55-45=10
04:00           55             (05:00.Value)-45

[ursulak]

what is the column format, maybe you forced to have text, not numbers?