Variable expression from a parameter

[2004 IR Help]

By: Martin S.H. Ra - sfnassa

Variable expression from a parameter

2004-11-19 11:13

I want to create a variable containing the result of some "runtime defined" aritmethic operations with fields of the report.

 

For example:

 

-If the user wants a multiplication of 2 fields the variable expression must be:

 

new Double($F{field1}.doubleValue() * $F{field2}.doubleValue())

 

-If the user wants a division of 2 fields the variable expression must be:

 

new Double($F{field1}.doubleValue() / $F{field2}.doubleValue())

 

and so on.

 

I tried to pass as a parameter the expression to be set but it returns null.

 

Any solution?