Loading a CSV file into a treeview is very slow

[DanielBarnes1]

I have a CSV file with over 6000 records which I am loading into a TreeView cointrol. I use a recursive function to do this becuase I need to look for a key so I can identify where I need to place the entry in the TreeView

For Each sLine As String In UniclassBasic
iCount = iCount + 1

Dim sUniclassAray() As String = Split(sLine, ",")

If sUniclassAray(2) = "Uniclass" Then
sString = sUniclassAray(0) & " " & sUniclassAray(1)
Tree.Nodes.Add(New HalcrowTreeNode(sString, sUniclassAray(0)))
Else
Dim oNode As HalcrowTreeNode
'Call Recursive function
oNode = FindNode(sUniclassAray(2), Tree.Nodes)

If Not oNode Is Nothing Then
sString = sUniclassAray(0) & " " & sUniclassAray(1)
oNode.Nodes.Add(New HalcrowTreeNode(sString, sUniclassAray(0)))
End If
End If
Next

Does anybody have any ideas on where I can improve this code or would it be possible to use the old vb6 control within the Windows common Controls which worked pefectly or is this going to cause me problems furthur down the line.

Thanks in Advance

Daniel Barnes

[<ABX]

What Control did you use in vb6?

Did you look at the code that i posted in your previous Thread?

Do you need to keep your data in a CSV? If you used XML parsing would be faster...

[DanielBarnes1]

I just used the TreeView control from Windows common controls in VB6.

I did look at your code but to be perfectly honest I had already got it working so didn't look at it in to much detail.

Do you think that code would be much quicker.

I have thought about doing this project with XML but havent used it before. How easy would it be to learn and put in practice.


Thanks Very Much for your help.

Daniel