Arraylists and For Each ... Next Problem

[krinpit]

I'm trying to itterate through an arraylist, changing the value of each item. In the simplified code below, the values do not change in the arraylist itself. Is there a way around this? :confused:

 

 

        
       smsg = string.empty
       For Each x In arrTemp
           smsg &= x & vbLf
       Next x
       Messagebox.show(smsg)

       For Each x In arrTemp
           x = 100
       Next x

       smsg = string.empty
       For Each x In arrTemp
           smsg &= x & vbLf
       Next x
       Messagebox.show(smsg)

[dynamic_sysop]

you are only trying to changed the string value you get out of the array , you need to change the actual array item , eg:

       Dim strItems As String() = {"item 1", "item 2", "item 3", "item 4", "item 5", "item 6"} '/// add some items to a string array
       Dim arrlist As New ArrayList
       arrlist.AddRange(strItems)

       Dim x As Integer = 0
       For x = 0 To arrlist.Count - 1
           arrlist(x) = "the new value " & x '/// modify the array item's text.
       Next

[krinpit]

Hmmm, Just as I feared. I like the For Each construct; the for x = 0 method is a little messier, but it will have to do.

 

Thanks dynamic_sysop