Are you adding the calculated columns with Code or in Designer? Do you issue a Grid.Refresh() ? I have done a similar process with success using code-added columns in Grid's INIT()...

-Irv.

I am using a grid that has a column with computed values. This column is then compared to a second column (non-computed) via function defined on my form. A third column, where the comparison function is referenced in the controlsource prop, shows the result of the comparison (checkbox). I am using a command button to compute my values and to show the results of the comparison on the grid.
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>The ControlSource property for each column in the grid is defined as follows:
>Col 1: ThisForm.Function1
>Col 2: view.Field2
>Col 3: ThisForm.CompareFunction1Field2
>
>The problem I am having is the column showing the results of the comparison is not refreshing correctly after the first time the cmd button is clicked. If the button is clicked a second time, the correct results show up. Any suggestions on how to correct this problem. Do I need to compute the values in my view instead of in the form?
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>Thanks