In VB speak, a variable is either something or it is nothing. The only way to have a variable is to declare it. Thus, a variable that is declared, but doesn't have a value is nothing.
Matt Liotta President & CEO Montara Software, Inc. http://www.montarasoftware.com/ 888-408-0900 x901 > -----Original Message----- > From: Shawn Grover [mailto:[EMAIL PROTECTED]] > Sent: Monday, September 09, 2002 2:27 PM > To: CF-Talk > Subject: RE: VB > > I haven't seen the "if x is nothing" method used for native variable types > - > only for class objects. Does this work right? > > As for trying to see if a variable has a value after it's been declared, > that's the purpose of the IsEmpty function IIRC. > > HTH > > Shawn Grover > > -----Original Message----- > From: Matt Liotta [mailto:[EMAIL PROTECTED]] > Sent: Monday, September 09, 2002 3:18 PM > To: CF-Talk > Subject: RE: VB > > > Alright, a couple of things to note... > > First, Dim is for declaring variables, but if you don't specify a type > then the variable is declared as a variant. Thus, instead of... > > Dim x > x = "" > > You should use... > > Dim x as String > x = "" > > Next, to check to see if a variable is null you would use the > following... > > If x Is Nothing Then > ... > End If > > So, I think the code you are looking for is... > > If x Is Nothing Then > X = "" > End If > > Matt Liotta > President & CEO > Montara Software, Inc. > http://www.montarasoftware.com/ > 888-408-0900 x901 > > > -----Original Message----- > > From: Scott Mulholland [mailto:[EMAIL PROTECTED]] > > Sent: Monday, September 09, 2002 2:04 PM > > To: CF-Talk > > Subject: RE: VB > > > > But foo is only "" if it does not already exist. Benoit was correct > in > > his understanding of what I am looking for. > > > > -----Original Message----- > > From: Tony Carcieri [mailto:[EMAIL PROTECTED]] > > Sent: Monday, September 09, 2002 3:56 PM > > To: CF-Talk > > Subject: RE: VB > > > > > > Hmm, maybe I am having a brainfart. > > > > If I do: > > <cfparam name="foo" default=""> > > > > doesn't that set the value to "" ? If so, then doing what I suggested > in > > VB should work the same. Again, my brain ain't working today. > > > > HTH, > > T > > > > -----Original Message----- > > From: Benoit Martin [mailto:[EMAIL PROTECTED]] > > Sent: Monday, September 09, 2002 4:48 PM > > To: CF-Talk > > Subject: RE: VB > > > > > > Unfortunately I don't know the answer but I don't think that what you > > proposed would work. This will initialize the var to "" no matter > what. > > In my understanding Scott is looking for code that would declare the > var > > only if it's not already defined > > > > Ben > > > > -----Original Message----- > > From: Tony Carcieri [mailto:[EMAIL PROTECTED]] > > Sent: Monday, September 09, 2002 10:24 AM > > To: CF-Talk > > Subject: RE: VB > > > > > > Dim only declares the var.. > > > > Try this: > > Dim x > > x = "" > > > > > > -----Original Message----- > > From: Robert Everland [mailto:[EMAIL PROTECTED]] > > Sent: Monday, September 09, 2002 4:17 PM > > To: CF-Talk > > Subject: RE: VB > > > > > > Isn't it DIM > > > > Robert Everland III > > Web Developer Extraordinaire > > Dixon Ticonderoga Company > > http://www.dixonusa.com > > > > -----Original Message----- > > From: Scott Mulholland [mailto:[EMAIL PROTECTED]] > > Sent: Monday, September 09, 2002 4:15 PM > > To: CF-Talk > > Subject: OT: VB > > > > > > Anyone know if there is an equivalent of what cfparam in VB. > > I need to set a default for a variable in case it does not exist. > > > > Thanks, > > Scott > > > > > > > > > > > > > > > > ______________________________________________________________________ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
