Solved

How do I copy an array into another?

Posted on 2008-06-20
8
767 Views
Last Modified: 2012-06-22
Hello,

I want to do something like this: ArrayCopy = Array

Without the original Array changing when I change the CopyArray.

Please help.

Thanks in advance.

0
Comment
Question by:richardhaeger
[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
  • 2
  • 2
  • +2
8 Comments
 
LVL 48

Assisted Solution

by:jpaulino
jpaulino earned 200 total points
ID: 21833899
0
 
LVL 10

Accepted Solution

by:
gangwisch earned 300 total points
ID: 21833979
Dim ArrayOfInts() As Integer = {1,2,3,4,5,6,7,8,9}
Dim My2ndArrayOfInts() as Integer = ArrayOfInts.Clone()
0
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 21833995
use the Clone() method:

arr2 = arr1.Clone()

considering arr1 and arr2 are defined as arrays
0
SharePoint Admin?

Enable Your Employees To Focus On The Core With Intuitive Onscreen Guidance That is With You At The Moment of Need.

 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 21834003
Oops, too late.
0
 
LVL 19

Expert Comment

by:Stephen Manderson
ID: 21834008
Use the array.Clone() method

Regards
Steve
0
 
LVL 19

Expert Comment

by:Stephen Manderson
ID: 21834010
Crap me too :D
0
 

Author Closing Comment

by:richardhaeger
ID: 31469283
Both solutions worked fine, I gave Paulino less points because he did not include an example. The clone method does a shallow copy. Does CopyTo do a deep copy? I guess so, am I correct?
0
 
LVL 48

Expert Comment

by:jpaulino
ID: 21835189
The example was in the MSDN link. I just didn't found usefull to copy/paste. :)

The CopyTo allows to copy to a new array and gives you the possibility to select the start index. Ex from MSDN adapted:

        Dim dinosaurs As New List(Of String)

        dinosaurs.Add("Tyrannosaurus")
        dinosaurs.Add("Amargasaurus")
        dinosaurs.Add("Mamenchisaurus")
        dinosaurs.Add("Brachiosaurus")
        dinosaurs.Add("Compsognathus")

        ' Shows the current array List(Of String)
        Debug.WriteLine(vbLf & "Contents of the dinosaurs :")
        For Each dinosaur As String In dinosaurs
            Debug.WriteLine(dinosaur)
        Next

        ' Declare an array with 15 elements (0 through 14).
        Dim array(14) As String
 
         ' Adds some text to the first position
        array(0) = "OldItem"

        ' Copy the array dinosaurs to the array() starting on 1
        dinosaurs.CopyTo(array, 1)

        Debug.WriteLine(vbLf & "Contents of the array:")
        For Each dinosaur As String In array
            Debug.WriteLine(dinosaur)
        Next


And the results:

Contents of the dinosaurs :
Tyrannosaurus
Amargasaurus
Mamenchisaurus
Brachiosaurus
Compsognathus

Contents of the array:
OldItem
Tyrannosaurus
Amargasaurus
Mamenchisaurus
Brachiosaurus
Compsognathus

0

Featured Post

Industry Leaders: 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

This tutorial demonstrates one way to create an application that runs without any Forms but still has a GUI presence via an Icon in the System Tray. The magic lies in Inheriting from the ApplicationContext Class and passing that to Application.Ru…
Well, all of us have seen the multiple EXCEL.EXE's in task manager that won't die even if you call the .close, .dispose methods. Try this method to kill any excels in memory. You can copy the kill function to create a check function and replace the …
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

707 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