Sum on variable

rbuser

?Hi, How do we get a sum of a variable on Report Builder.

For a database field, we use the DBCalc but what if there is a variable.

Thanks.



--- posted by geoForum on http://www.newswhat.com

nicocizik

Hi Ashwin,

Do this by updating the value of another variable inside the original
variable's OnCalc event. Say for instance you have a variable (Var1) in the
detail band and would like to calculate its sum in the summary band (Var2).

procedure TForm1.Var1Calc(Sender: TObject; var Value: Variant);
begin
//Make the original calculation
Value := //some calculation

//Update the summary variable value
Var2.Value := Var2.Value + Value;
end;

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com