how to check null value of a string and if it is null then suppress any table in crystal report

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I am trying to suppress a sub-report.I want to check a string value either it is null or not..If the string value is null then it will suppress.
I followed the following steps steps

1. then I wrote a formula like

if InStr ({EmployeeHist.SpouseName},'' ) = 0 then
'N/A'

But its showing a error **THE FORMULA RESULT MUST BE A BOOLEAN**..

Can anyone please help??

Posted 30-Dec-13 18:34pm

smrafat

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thatraja · Answer 1 · 2013-12-30T20:14:00

Solution 1

Your formula should be like below. Because the suppress condition depends on true or false(boolean value).

C#

if InStr ({EmployeeHist.SpouseName},'' ) = 0 then
true

Posted 30-Dec-13 20:14pm

thatraja

Comments

smrafat 31-Dec-13 4:10am

Thanx for your answer.I have later tried this one.But its still going wrong.Both the subreport having Value or Not the sub-report is suppressing..

thatraja 31-Dec-13 4:26am

/*But its still going wrong*/
Please mention with more details. I have changed the formula based on 'Suppress' logic which accepts only boolean value