VB.Net treeview with tristate functionality on form

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Hi guys,

Can someone please tell me what I have to do to create a tri-state treeview in VB.Net? I need it to change the check state of parent nodes (checked, mixed or unchecked) based on the checkstate of the child nodes, and also to check/uncheck all child nodes when the parent node is checked.

I know there are examples online but I am not very good at programming and they all are either in another language or confuse me. I have added a treeview control to a form, and I can get it to populate correctly (which i do programmatically) but I have no idea how to work the tri-state functionality.

Thank you!

Posted 22-May-12 20:55pm

FFP@GC

Updated 22-May-12 20:58pm

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Sandeep Mewara 23-May-12 4:40am

So, does that mean you need the 'exact' code to use it?

FFP@GC 23-May-12 13:19pm

Hi,

Thank you for the response. I figured it out however by using the code listed here:

http://www.codeproject.com/Articles/6880/TriStateTreeview-in-VB-NET

It appears you cannot just add a tristate treeview graphically in visual studio and need to programmatically like so:

m_ctlTriStateTreeView = New TriStateTreeView(Me.StateImageList).

I dont fully understand what I've done but it is working.

Thanks again for your time.

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Sandeep Mewara · Answer 1 · 2012-05-23T08:08:00

Solution 1

OP has found a solution and resolved the question. This is just to pop this out of unanswered question.

Posted 23-May-12 8:08am

Sandeep Mewara

FFP@GC · Answer 2 · 2012-05-24T16:37:00

Solution 2

This article worked for me

TriStateTreeview in VB.NET[^]

Posted 24-May-12 16:37pm

FFP@GC