Summation of Sum Formula in Crystal Report

I did a summation in one formula say Formula1. Now i created Formula2 which would do summation of Formula1 as Sum({@Formula1}).

But the crystal report gives the error as "The Field could not be summarized". I understand that summation of sum cannot be done, but i need to do开发者_C百科 this as Formula1 does summation of columns i.e. brings up Total and Formula2 brings up grand Total.

Please Help!

thanks

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1. Does your Formula1 always evaluate to a numeric value? For example, if you designed Formula1 to display "-" instead of "0", that would cause the problem for Formula2.

2. If this is a simple summation, you don't even need a Formula2. Crystal has a built-in alternative. On Formula1, go to right-click->Insert->Summary and choose where you want it (Group Footer or Report Footer)

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If you copy your summation field and paste it in the Report Footer, it will calculate a grand total--no need to do a sum(sum(field)).