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Home > English site > Articles > Treeview control

An MSForms (all VBA) treeview

Introduction

If you have ever used the Treeview control from the "Additional controls" section, then you know what a versatile control this is to show hierarchically organized data. There are a couple of problems with this Treeview control:

  1. Compile errors due to a difference in how the control libraries are registered in 32 bits Windows' System32 and 64 bit Windows' SysWOW32 folders. If you distribute a file that was saved in 64 bit Windows, containing one of the "Microsoft Windows Common Controls 6.0" (The Treeview control is one of them) and with the reference set to "mscomctl.ocx", people using 32 bit Windows will almost certainly have problems. At best it could entail removing both the control and the reference and replacing both, but at worst the user's Excel can crash when trying to load the file and run the app.
  2. The standard Treeview control, like all non built-in ActiveX controls, cannot be used in 64 bit versions of Office.

Especially the second point convinced me it is time to develop a custom-made Treeview "control", that only uses the native Office forms controls. I started building this a couple of weeks ago and after some time I tricked Peter Thornton into helping me with it

The screenshot below shows both our new Treeview (left) and the Windows one (right) side-by-side in their simplest display mode (read on, there are even prettier screenshots further down the page):

Treeview controls
Two treeviews, left: VBA tree, right: Common controls tree

In the following pages I'll show what our treeview can do and explain how to put it to use in your own VBA project.

MAC Office and 64 bit Office Compatible!

Our treeview was tested (and works) on 64 bit Office. It also works on MAC office. Tested applications include:

Excel 2000
Excel 2003
Excel 2010
Excel 2010 (64 bit)
Excel 2011 (MAC Office)
Excel 2013 (32 bit)

Access 2003
Access 2010 (32 bit)
Access 2010 (64 bit)

Windows screenshot:

Treeview demo on Windows Excel
Treeview demo on Windows Excel

Mac screenshot:

MAC screenshot of our treeview demo form
Screenshot of treeview on Mac Excel 2011

Acknowledgements

The basic plumbing and code structure of this treeview control was devised by me. However, without the help of my friend and fellow MVP Peter Thornton, lots of functionality would not have been available now. For that I sincerely thank Peter!

Furthermore, Access MVP Ben Clothier was kind enough to make the necessary adjustments to incorporate the treeview in an Access form

Also: Fellow Excel MVP Ron De Bruin ensured the treeview also works on MAC Office 2011, Thanks Ron!

Copyright and Licensing

All code in the treeview is (c) JKP Application Development Services and Peter Thornton (the Authors). It remains our sole intellectual property.

However, we're offering this treeview to you at no cost. You get an unrestricted license for use in any VBA project you like. You're free to modify any part of the code at will.

We do have some rules:

And please mention the source of the treeview (including a link to this page) in your helpfile, manual and/or on your about screen.

We're always interested to see how people have implemented the VBA Treeview. So please feel free to send a screenshot with a brief description or relevant details.

Disclaimer

You use this control at your own risk: The authors accept no liability whatsoever for any damages which may arise due to the use of our treeview.

Donations

Many, many hours were spent developing this treeview. Although we developed it for use in our own projects, we are giving it away for free!

Nevertheless, we would really be pleased if you actually express your appreciation in a more "tangible" form. So here is a paypal donation button at your disposal:

Download

The Excel workbook contains most of the documentation (on the tabs of the workbook), so I recommend you to at least download the Excel version. The Access version has instructions on its main form (click the "How do I...?" button) on how to implement the treeview in your own projects.

Download the treeview sample Excel workbook (including documentation) (build 026, 15 Oct 2015, downloaded 24,550 times)

Download the treeview sample Word document (build 026, 15 Oct 2015, downloaded 7,256 times)

Download the treeview sample Access database (build 025, 16 Oct 2013, downloaded 19,735 times)

Pro version: Ready for Beta testing

The professional version of the treeview control with much better performance, capability to handle thousands of branches, drag and drop and etcetera is ready for beta testing. Contact us if you would like to participate in the beta program. Note that this version will not be freeware.

Listgrid control

We have also release a ListGrid control for beta testing. Contact us if you would like to participate in the beta program. Note that this control will not be freeware.
Listgrid control

Content

 

Other controls

Another often used control is the calendar control. This control has the added problem that it has been deprecated with Office 2010 (where we're supposed to use the date picker control). Frankens Team created an all-vba alternative using very similar techniques to what we've done here.

Ron de Bruin created a Date Picker control for MAC Excel.

We are currently developing a listgrid/listview control. Contact us if you would like to participate in the beta program. Note that this control will not be made available as freeware.

 


Comments

Showing last 8 comments of 533 in total (Show All Comments):

 


Comment by: Daniel Dumitru (3/27/2017 4:35:26 PM)

Hi Jan,

Yes I do. I have the
Private WithEvents mcTree As clsTreeView
, in a form, and in a different module I have a public function:
Function addRoot(frmI As Frame, targetFolder As String)

Set mcTree = New clsTreeView
With mcTree
        'SET TREE = FRAME
        Set .TreeControl = frmI


Is it a problem that the function where the clsTreeView is not in the form?

 


Comment by: Daniel Dumitru (3/27/2017 4:40:02 PM)

It does have to be defined in the Form, now it's working.
Thank you!
Set mcTree = New clsTreeView
- should be defined in the form, not in a separate module.

 


Comment by: Jan Karel Pieterse (3/27/2017 4:50:54 PM)

Hi Daniel,

Indeed in the form, as that is where form code belongs :-)

 


Comment by: Filia (6/15/2017 3:34:32 PM)

Hi, I cannot import Form_subTreeView into my project (Access 2016). Message: The module name 'Form_subTreeView' is invalid". Any idea why?

 


Comment by: Jan Karel Pieterse (6/15/2017 3:57:05 PM)

Hi Filia,

I'm afraid I don't know!

 


Comment by: Martin (6/16/2017 2:58:20 AM)

You mention:

Access 2003
Access 2010 (32 bit)
Access 2010 (64 bit)

What about 2007, 2013 & 2016?

 


Comment by: Jan Karel Pieterse (6/16/2017 3:03:02 PM)

Hi Martin,

It should work on those versions as well, the ones mentioned are the ones we tested on.

 


Comment by: Peter Thornton (6/22/2017 9:38:07 AM)

@ Filia,
I've just tried the following with Access 2016 64 bit:
- Open a newly downloaded treeview demo v025, all worked fine.
- Drag the subForm from the treeview demo to a new project, no problem.

@ Martin,
>What about 2007, 2013 & 2016?
I can confirm working in Access 2007, 2013-32, and 2016-64.
I believe others have tested in 2013-64 and 2016-32.

The current version 025 was made with 2003. We held back from updating to 026 as we can no longer compile in a way that will work for 2003. However as time has gone by we may update the 025 mdb to 026 as an accdb.

 


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