hide part of asp code if session is null

[aonefun]

I would like to have the following code show only if Session("PostalCode") is not null. I suppose I should put it into an If statement?

I tried it as follows but it does nothing:

If Session("PostalCode")<>"" Then
WADbSearch1_whereClause=BuildFilterString("LATITUDE","" & cStr( Session("HighLatitude") ) & "","AND","<=",1,WADbSearch1_wildCard,WADbSearch1_dateSeparator,WADbSearch1_whereClause)
WADbSearch1_whereClause=BuildFilterString("LATITUDE","" & cStr( Session("LowLatitude") ) & "","AND",">=",1,WADbSearch1_wildCard,WADbSearch1_dateSeparator,WADbSearch1_whereClause)
WADbSearch1_whereClause=BuildFilterString("LONGITUDE","" & cStr( Session("LowLongitude") ) & "","AND",">=",1,WADbSearch1_wildCard,WADbSearch1_dateSeparator,WADbSearch1_whereClause)
WADbSearch1_whereClause=BuildFilterString("LONGITUDE","" & cStr( Session("HighLongitude") ) & "","AND","<=",1,WADbSearch1_wildCard,WADbSearch1_dateSeparator,WADbSearch1_whereClause)
End If

 

[Chopstik]

Null and empty string are two different issues. If you want to check for null values, try this:

If not isnull(Session("PostalCode")) Then

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