Hello,

I want to base a column's summary value off a different (hidden) column in the grid.

For example, think about volumes of liquid being added to a storage tank.  I have a grid with one column indicating whether the volume is being added or subtracted, a second column showing the positive volume being added or subtracted, and a third hidden column with the signed volume being added/subtracted.  I want the summary value to indicate the amount in the tank.  So what I want to do is show the second column with the positive volumes, but I want it's summary to be based on the third hidden column with actual signed volumes.

Is this possible?

Thanks, Steve