What is the Difference between Global and Public, Dim and Private variables? in Visual Basic 6.0. Because I am always using Public and Dim but using Global and Private is doing the same thing, is there any differences between these types of declaration scopes???????
Example:
What is the difference:
' In bas Module
Option Explicit
Global gblmyVar1 as Long ' Declared as Global
Public pblmyVar1 as Long ' Declared as Public
' In Form Module
Private prvRecSet as New ADODB.Recordset ' Declared as Private
Dim dimRecSet as New ADODB.Recordset ' Decalred as Dim
Please help, thanks in advance.
Jan 20 '07
11  19756 
About the Option Private Module, I just figured it out that If VB6 implement this kind of Option then I think that is the reason why there is a GLOBAL Statement, So if you will try to disable the Option Private module then Global statement is in effect and you can access your variables with GLOBAL statement in different types of your projects.
Thanks guys I appreciate all your help and Ideas, but if you think this is not the answer you can suggest another, please don't hesitate to post your answers...
To be honest, I'm a bit lost.
I used to use Global in VB5 and earlier, but have since converted over to using Public. I still have code which says Global, because it was written in an earlier version. Both seem to work just fine, and I don't think I've heard of Option Private Module before.
The problem is, I've had very little experience with multiple projects. The only time I've worked with more than one project is when I'm creating a user control, in which case the "main" project is generally little more than a form with an instance of the control on it for testing. And I've only done this on rare occasions, as I can never find the time to play with this stuff.
Killer42 : I used to use Global in VB5 and earlier, but have since converted over to using Public. I still have code which says Global, because it was written in an earlier version. Both seem to work just fine, and I don't think I've heard of Option Private Module before. - there are no more Global in after VB6.
- if your program is small and works well, you are right that public-private-global do the same thing. is just the range those variable will have.
here is a link. it summarize the use of global variable in VB.NET. works almost the same thant VB6. VB.NET removed the Global keyword and is replaced by a shared variable inside a class. Global Variables in Visual Basic .NET ; Everything you need to know about Global Variable for VB.NET in this single Post.
there is a simple Private-Public article i made. might give a hand: Public vs. Private Sign in to post your reply or Sign up for a free account.
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