Treeview in VBA

[devatu]

Hey All,

I am using a treeview in my project. When I add a parent, I see it popping up, but when I try to add a child, nothing appears under the parent in the treeview...
Does anyone know what is going on?

My code to create the parent and the child nodes:

Please Login or Register  to view this content.

If anyone could think of a fix, I would be super happy!

Thanks in advance and cheers,

Devatu

[romperstomper]

You should be adding to the Nodes collection of the parent node, not the treeview.

[devatu]

Hey romperstomper, thanks for your quick reply!

I've Followed the tutorial here http://www.homeandlearn.org/parent_and_child_nodes.html
They have posted a picture of it working in that way.

But I believe you, how should I add to the parent node instead of the treeview itself? And why doesn't it work like in the tutorial stated above?

[Norie]

You aren't specifiying the parent node.

Please Login or Register  to view this content.

PS Your code actually works, try expanding Parent 1.

[devatu]

Hey Norie, thanks for the reply.

I've added your code and it still gives the same result:
See.png

Is it my computer?

[Norie]

Have you tried expanding the parent node by double clicking it?

Or by adding this code.

Please Login or Register  to view this content.

[devatu]

Yeah, I just checked it on another computer. It wasn't expanded indeed, but I never checked it because I expected to have a + sign in front of it. Sorry for being stupid haha! And thanks for the help!

[Norie]

To get the + sign(s) you need to set LineStyle to tvwRootLines.

[devatu]

Thanks Norie! Couldn't find that option either, but thanks to you I found it !

[devatu]

Thanks again, is there a way to detect if a node is a parent or not? I want to add a child to a parent, but at the moment I am able to add a child to a child aswell.
This is due to the dynamically selection procedure I am using (the objNode.text one returns the selected item). If I would be able to check whether something is a parent or a child, I could change this.

My code is as following:

Please Login or Register  to view this content.

Cheers and Thanks in advance!

Devatu

[Norie]

I suppose you could check the no of children a node has using it's Children property, if it's 0 then it's a child node.

[devatu]

I can indeed count the amount of childs/children with it, but when I have no childs/children, I get an error that the With isn't set. I tried to do:

Please Login or Register  to view this content.

But then it gives the with error in that part of the code

[Norie]

When you run that code is there a node selected?

[devatu]

Oh, that is stupid of me. Nothing was selected indeed. It works now, but when nothing is selected I get the error (because it has nothing selected, I learned that now), but I don't want the end-user to get an error message if he didn't select anything. Is there a way to overcome this? I know that with listboxes, if you have nothing selected , you can use the .selected (or something like that) function to check if it's value is -1. Is there something equal possible here? thanks

[Norie]

With comboboxes and single select listboxes you can check ListIndex to see if anything is selected.

With a treeview if nothing is selected SelectedItem is Nothing.

Please Login or Register  to view this content.

[devatu]

That works fine indeed, thanks.

Just one question remaining. With the given code for checking whether the node is a child node or not.
If the parent node has no childs, the code will return a 0, because it has no childs. So I press my button to add a child, and it works, because he had none. But then, because the code is dynamically, if I press the button again, the child has no childs, so my program makes another child.

Please Login or Register  to view this content.

So I still cannot determine whether something is a parent or not.

[devatu]

Solved it by using:

Please Login or Register  to view this content.