hi

 i have some problem while getting the sum of the field. i want to get the sum of one filed for example sum of the values which in Debit Field. but i want to get this sum according to another field called period. means for that respective period value i want the sum of the Debit field in crystal report. and im using a dataset.in this dataset there s both the fields

here, i know how to get the sum of the debit field by adding the Formula field. but i don't know how to take it according to value in my period field.

can someone help me with this.

thanks