topic empty variable in QlikView https://community.qlik.com/t5/QlikView/empty-variable/m-p/205039#M61699 <HTML><HEAD></HEAD><BODY><P>still doesn't work.</P><P>This is the error I get:</P><P>Error in expression:<BR />Len takes 1 parameter If (Len() = 0) Then</P></BODY></HTML> Fri, 08 Jan 2010 09:36:12 GMT 2010-01-08T09:36:12Z empty variable https://community.qlik.com/t5/QlikView/empty-variable/m-p/205037#M61697 <HTML><HEAD></HEAD><BODY><P>How do I check in the load script if a variable is empty?</P><P>if isnull($(S)) then</P><P>.....</P><P>Doesn't work.</P></BODY></HTML> Fri, 08 Jan 2010 09:24:07 GMT https://community.qlik.com/t5/QlikView/empty-variable/m-p/205037#M61697 2010-01-08T09:24:07Z empty variable https://community.qlik.com/t5/QlikView/empty-variable/m-p/205038#M61698 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>Try</P><BLOCKQUOTE style="overflow-x: scroll;"><PRE style="margin: 0px;">If (Len($(vVar)) = 0) Then</PRE></BLOCKQUOTE><BR /><BR /></BODY></HTML> Fri, 08 Jan 2010 09:28:10 GMT https://community.qlik.com/t5/QlikView/empty-variable/m-p/205038#M61698 Miguel_Angel_Baeyens 2010-01-08T09:28:10Z empty variable https://community.qlik.com/t5/QlikView/empty-variable/m-p/205039#M61699 <HTML><HEAD></HEAD><BODY><P>still doesn't work.</P><P>This is the error I get:</P><P>Error in expression:<BR />Len takes 1 parameter If (Len() = 0) Then</P></BODY></HTML> Fri, 08 Jan 2010 09:36:12 GMT https://community.qlik.com/t5/QlikView/empty-variable/m-p/205039#M61699 2010-01-08T09:36:12Z empty variable https://community.qlik.com/t5/QlikView/empty-variable/m-p/205040#M61700 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>The sentence is:</P><P>If IsNull(S) then</P><P>You can debug my attached file and verify the sentence.</P><P>Best regards.</P></BODY></HTML> Fri, 08 Jan 2010 09:36:51 GMT https://community.qlik.com/t5/QlikView/empty-variable/m-p/205040#M61700 2010-01-08T09:36:51Z