Crystal Reports: Is it possible to sum for more than one column?

I work on an accounting project in .NET.

I want to sum all transaction and its opening balances.

I use summary but it Allows only 开发者_StackOverflow社区one column..

You can summarize within formulas, so long as the formula field is present in the report footer. When using Sum() CR knows to evaluate the expression for all records returned.

So you would create a formula for the report footer, and the formula code would be something like:

Sum({@TransactionAmt1}) + Sum({Transactions.Amount}) + Sum({@AnotherFormula});