Not Null Expression

[#1]

Dear Qlikview Gurus

Please assist me to convert NULL EXPRESSION if(IsNull([Stock]) to NOT NULL EXPRESSION

Regards

Mahlatse

[sunny_talwar]

May be this

If(not IsNull(Stock).....

[Anonymous]

if(not IsNull([Stock])

???

[wdchristensen]

IF(Len(Trim(Stock))=0, 'Null', 'Not Null')

IF(Len(Trim(Stock))>0, 'Not Null', 'Null')