Question

I wonder if there is a way in crystal reports to do something like the following:

I have a table with data like this:

    ID       MeshName      RetainedWeight
    654      3.3 inches    20.00
    789      3.0 inches    20.00
    321      1.4 inches    20.00
    ...

And I need to show them in crystal reports like this:

    Title Here                                       %
    Retained 3 inches                               33.3
    Retained 2.3 inches, passing 3 inches           33.3
    Retained 1.4 inches, passing 2.3 inches         33.3
    Retained ... inches, passing 1.4 inches         ... 

So, as you can see I need to show the current record as well as the MeshName of the previous one, any ideas?

I’m thinking: maybe with some variable that retains the previous MeshName…?

Answer 1

You can refer to values in the previous or next details row by using the functions Previous and Next.

So in your example, it might be a formula called @Title with the text :

"Retained " & ToText({MyTable.Inches}) & " inches, passing " & ToText(Previous({MyTable.Inches})) & " inches"

You can also use the PreviousIsNull and NextIsNull functions to make sure you don’t have problems with the last or first rows.