how to declare variable in crystal report vb.net?

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Hi all,
I doing a project regarding crystal report.
I need to make some calculation of the total product.
Consignment_Sales_Report.SuppMargin is the amount I want to sum.
But when I click save, it come out a message say that "A number field or currency number field is required here."
Can anyone help me? Where is my wrong?
Or anyone can provide me some useful link for reference?
Below is my code.

Sum ({Consignment_Sales_Report.SuppMargin} )

Posted 23-Dec-12 13:54pm

JOE Heart Under Blade

Updated 23-Dec-12 15:16pm

v3

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4 solutions

Solution 3

Dear all,
I tried code as shown below.
but still get the same error.

local numbervar x :=sum(ToNumber({Consignment_Sales_Report.Quantity}));

sum(ToNumber({Consignment_Sales_Report.Quantity}));

local numbervar x :=sum({Consignment_Sales_Report.Quantity});

Posted 26-Dec-12 15:38pm

JOE Heart Under Blade

Solution 4

if my variable isn't number,is it will affect this error happened?

Posted 26-Dec-12 15:40pm

JOE Heart Under Blade

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_Vitor Garcia_ · Accepted Answer · 2012-12-25T22:02:00

Solution 1

To declare a local variable using crystal sintaxe :
Local NumberVar x := Sum ({Consignment_Sales_Report.SuppMargin} );

best regards

Posted 25-Dec-12 22:02pm

_Vitor Garcia_

Aarti Meswania · Accepted Answer · 2012-12-25T22:51:00

Solution 2

make sure,
Consignment_Sales_Report.SuppMargin
is number field. it should not be string or any other type of column

Other way is...

sum( ToNumber({Consignment_Sales_Report.SuppMargin}) )

Happy Coding!
:)

Posted 25-Dec-12 22:51pm

Aarti Meswania