Run time error 20515

Run Time error '20515'
Error in formula <CM_OPN_AMT>.
'IF {@OpnBal} = '0' THEN ({Temp_Clnt_PrvAmt.CMAmt}) - ({Temp_Clnt_PrvAmt.Amt_Rcvd})'
A number is required here.

Formula i am using is

IF {@OpnBal} = '0' THEN ({Temp_Clnt_PrvAmt.CMAmt}) - ({Temp_Clnt_PrvAmt.Amt_Rcvd})

Please help.
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Altaf PatniSoftware DeveloperAsked:
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mlmccCommented:
Try

IF {@OpnBal} = 0 THEN ({Temp_Clnt_PrvAmt.CMAmt}) - ({Temp_Clnt_PrvAmt.Amt_Rcvd})

Are the other fields numbers or strings?

mlmcc
Altaf PatniSoftware DeveloperAuthor Commented:
Thanks
it says string required here
and cursor shows me before 0
all the fields are number
mlmccCommented:
What is the OpnBal fomula?

mlmcc
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Altaf PatniSoftware DeveloperAuthor Commented:
getting OpnBal value from vb form

prvOpnBal = Val(Rs2Clnt.Fields(0)) - Val(Rs2Clnt.Fields(1))
CrystalReport1.Formulas(5) = "OpnBal = '" & prvOpnBal & "'"
mlmccCommented:
What is OpnBal in the report?
Since you replace it, the replacement is causing the problem

mlmcc
Altaf PatniSoftware DeveloperAuthor Commented:
OpnBal is a value i wanted to show in the report.
value from database.
then i wanted to calculate this OpnBal value with "Sum of CLNT_Ledger.CMAmt"
mlmccCommented:
You say the error is in this formula

IF {@OpnBal} = '0' THEN ({Temp_Clnt_PrvAmt.CMAmt}) - ({Temp_Clnt_PrvAmt.Amt_Rcvd})

Need to know if that formula is part of the report or the formula you are changing from code?

If it is not the formula you are changing then what is the original formula?

mlmcc
Altaf PatniSoftware DeveloperAuthor Commented:
as far as i tried with different different ways
now

///trying to add Sum ({CLNT_Ledger.CMAmt}, {CLNT_Ledger.conName}) in @OpnBal
formula for CM_OPN_AMT is

IF {@OpnBal} = '0' THEN Sum ({CLNT_Ledger.CMAmt}, {CLNT_Ledger.conName}) else
({@OpnBal}) + Sum ({CLNT_Ledger.CMAmt}, {CLNT_Ledger.conName})

it says string is required here cursor shows between + and Sum
mlmccCommented:
OpnBal is apparently a string value.

Is it a formula or a parameter?

Try

Simplifying this to

Val({@OpnBal}) + Sum ({CLNT_Ledger.CMAmt}, {CLNT_Ledger.conName})

If OpnBal = '0' then the Value is 0 and doesn't change the sum

mlmcc

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Altaf PatniSoftware DeveloperAuthor Commented:
Tried but
On refresh report, no error
but from code
giving me run time error 20515
Please check attached File
RUN-TIME-ERRRO-20515.doc
mlmccCommented:
Can you upload the report and show the code you use to run it?

mlmcc
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