I have taken responsibility for a Crystal Report.
Because it summarises information, it does not print any detail lines or group headers or footers.
But in the report footer it lists a number of lines of summarised information.
I have been asked to alternate the shading of the lines.
If this was a detail line I could use
if (recordnumber mod 2 = 0)
But this does not work, presumably because the recordnumber is not incremented.