?
Solved

Difference between an array defined with "Static" keyword and "Dim" keyword?

Posted on 2010-08-31
3
Medium Priority
?
605 Views
Last Modified: 2012-05-10
hi,

Is there any difference between the following two statements?

Static strarray() As String
Dim strarray() As String

I tried to change Dim strarray() As String to Static strarray() As String in the below code. I dont see the difference this way. Can anybody explain? Thanks
       


Private Sub Form_Load()
    Dim strarray() As String
        
    ReDim strarray(2) As String
    
    strarray(0) = "1"
    strarray(1) = "2"
           
    For i = 0 To UBound(strarray) - 1
        MsgBox (strarray(i))
    Next
End Sub

Open in new window

0
Comment
Question by:ipjyo
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 8

Accepted Solution

by:
thoffman earned 2000 total points
ID: 33572211
Static causes the variable to keep the value between function calls. It basically "remembers" the value of the array when the function exits instead of resetting it each time it's called. I've modified the function to show how it would behave (I changed the variable to a long to make it easier to see).
 
If you keep it as dim, the code will return the following every time it's run:
1
2

On the other hand, if you make it static, the first time it's run, it returns:
1
2

Then, the second time it's run, since strarray(0) is set to 1, it returns:
2
3

And so on...

Private Sub Form_Load()
    Dim strarray() As long
        
    ReDim strarray(2) As long
    
    strarray(0) = strarray(0) + 1
    strarray(1) = strarray(0) + 1
           
    For i = 0 To UBound(strarray) - 1
        MsgBox (strarray(i))
    Next
End Sub

Open in new window

0
 
LVL 8

Expert Comment

by:thoffman
ID: 33572224
By the way, I just realized that you had that in a Form_Load, so static wouldn't make much sense since the function is only called once anyway. It would be better in a button click function.
0
 

Author Comment

by:ipjyo
ID: 33573070
Thanks for the clarification.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Not long ago I saw a question in the VB Script forum that I thought would not take much time. You can read that question (Question ID  (http://www.experts-exchange.com/Programming/Languages/Visual_Basic/VB_Script/Q_28455246.html)28455246) Here (http…
Background What I'm presenting in this article is the result of 2 conditions in my work area: We have a SQL Server production environment but no development or test environment; andWe have an MS Access front end using tables in SQL Server but we a…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…
Suggested Courses
Course of the Month12 days, 15 hours left to enroll

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question