How to sum the running total field value and formula field value in crystal report?

Question

I want to add the running total field value and formula field value("Openbalnce"), the sum should be assigned to another formula field("Total").

In the formula editor of formula field("Total"),I have given as:

 {runningtotalvalue} + {formula field value("Openbalnce")}

The Formula field ("Openbalnce")value is assigned in code behind and running total field value is directly assigned.

It shows the error

"A number,date or time,date etc is required here".

Please help me out of this.

Answer 1

This Is Working

({runningtotalvalue}) + CDBL({@"Openbalnce"})