[RESOLVED] Treeview node > convert value > add node treev2

[Radjesh Klauke]

Ola,

Not sure how to explain my question but here I go:

I have a Treeview with nodes.
example:
- 25
- 50
- 75
- 85

After a click of a button I want to do a calculation with all the nodes and add the result in a new treeview. There are no child-nodes.

How do I "loop" through the nodes, add, for example, 10 to the values and add each value/result to a new node in a second treeview?

I hope I made myself clear. If not, please ask. Really need this.

[jmcilhinney]

How do I "loop" through the nodes

Pretty much exactly as you said: you loop through the Nodes. Nodes is a collection so you loop through it like you do any other collection:

For Each node As TreeNode In myTreeView.Nodes

You use 'node' inside the loop in whatever way is appropriate, e.g. get its Text, convert that to a number, add 10 to it, create a new TreeNode with that result as its Text and add that to another TreeView.

That said, I would tend to create all the additional nodes first and then use AddRange to add then to the Nodes collection of the second TreeView. It's always preferable to use AddRange to add multiple items to a collection if possible, especially if those items will be displayed in a UI.

[Radjesh Klauke]

Ah. Thanks