How to show a null value in rdlc report?

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Hi, I have a rdlc report. And Iam trying to show the Serial No. for the field Itm_description is available column.....If the field itm_description is null, then the serial no has to be null... Is it possible?

When I give the below command for Sl_No column expression,

VB

IIf((Fields!itm_description.Value.ToString().Trim().Length=0), "",RowNumber(nothing))

IIf((Fields!itm_description.Value.ToString().Trim().Length=0), Nothing,RowNumber(nothing))

Output
======
1
2
3
4
#error
#error
#error

So how to solve this error...

Posted 18-Aug-14 6:49am

Paramu1973

Updated 18-Aug-14 6:52am

v2

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2 solutions

Solution 2

From your tips, I succeeded by the following expression

C#

=IIf((Convert.ToString(Fields!itm_description.Value).Trim().Length=0), "", RowNumber(nothing))

Thanks

Posted 18-Aug-14 21:12pm

Paramu1973

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ZurdoDev · Accepted Answer · 2014-08-18T07:21:00

Solution 1

I believe using the IsNothing function is what you'll need to use. It can test for NULL.

See http://social.msdn.microsoft.com/Forums/en-US/cbed4e88-16d4-4d4b-821a-7a7e728c7e34/testing-for-null-in-rdlc-report-field?forum=vsreportcontrols[^]

Posted 18-Aug-14 7:21am

ZurdoDev