The reason you can't call a method (sub or function member of a class) directly is because the object defined by the class doesn't exist until you create it with the NEW keyword (or CreateObject - but usually you should use NEW).
It doesn't exist for a reason - each time you use the NEW keyword you create a unique entity - that object is an individual., and the variables, methods, properties, etc. of that object have their own scope. a CLASS is a "class of object". If you imagine a class called PERSON, it might have a property called "First Name" and another called "Last Name". If you could access those properties without "instantiating a class" (creating an instance of the class, i.e. a new object based on it) every PERSON in the world would have to have the same name (and everything else about them would have to be the same, and they would have to behave the same.). WORKSHEET is an example of a built-in class. You can't refer to it's properties and methods unless you refer to a specific worksheet object. Excel automatically creates WORKSHEET objects worksheets are added to the workbook, and disposes of them when they're removed. You can find some tutorials for classes online, such as: http://www.cimaware.com/resources/article_39.html http://www.cpearson.com/excel/classes.aspx Asa From: excel-macros@googlegroups.com [mailto:excel-macros@googlegroups.com] On Behalf Of Matt Sent: Wednesday, April 11, 2012 6:21 AM To: excel-macros@googlegroups.com Subject: Re: $$Excel-Macros$$ Call a Function Yes, I moved it to another module and I believe I had an older copy of that code in a different module as well and that was a problem too. I've been trying to understand classes (I know they create objects) and their use, thats why I originally used the "class module" though. On Tuesday, April 10, 2012 9:53:09 PM UTC-4, Asa R. wrote: Hi Matt, Glad to help. What was your solution? Moving the functions to a standard module instead of the class module? Asa From: excel-macros@googlegroups.com [mailto:excel-macros@googlegroups.com] On Behalf Of Matt Sent: Tuesday, April 10, 2012 6:03 PM To: excel-macros@googlegroups.com Subject: Re: $$Excel-Macros$$ Call a Function Thanks Asa. Your advice helped! I thought I tried it before but I guess I missed something and it works now. Tx again' Matt On Thursday, April 5, 2012 3:27:51 PM UTC-4, tag wrote: please see... Sub or Function not defined (Visual Basic) A Sub or Function must be defined in order to be called. Possible causes of this error include: . Misspelling the procedure name. . Trying to call a procedure from another project without explicitly adding a reference to that project in the References dialog box. . Specifying a procedure that is not visible to the calling procedure. . Declaring a Windows dynamic-link library (DLL) routine or Macintosh code-resource routine that is not in the specified library or code resource. To correct this error 1. Make sure that the procedure name is spelled correctly. 2. Find the name of the project containing the procedure you want to call in the References dialog box. If it does not appear, click the Browse button to search for it. Select the check box to the left of the project name, and then click OK. 3. Check the name of the routine. 2012/4/5 ChilExcel <chilexcel...@gmail.com> Please attach example, to better understand Chilexcel 2012/4/5 Matt <moni...@gmail.com> Hello, I'm trying to call a public function in one module from another Sub procedure in another module and it won't call the the function. I get an error that says.."sub function not defined" But when I include the function within the same module, my code works... I can't seem to find the answer online... What is the problem? Thanks again for your help. Matt -- FORUM RULES (986+ members already BANNED for violation) 1) Use concise, accurate thread titles. 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