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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' SysWOW64 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 34.343 times)

Download the treeview sample Word document (build 026, 15 Oct 2015, downloaded 10.807 times)

Download the treeview sample Access database (build 026, 16 Oct 2015, downloaded 27.860 times)

‘Pro’ Treeview and ListGrid VBA controls

The professional version of the treeview control has exceptional performance. Even with tens of thousands of nodes it will load quickly and remain highly responsive. It also has several new features including drag and drop.

Our new ListGrid combines most of the functionality of the ActiveX Listview and Flexgrid controls with many extra useful features. It is the result of extensive beta testing by some of our treeview users, thanks guys!

The screenshot of the demo below gives an idea of just some of its capability.

Professional ListGrid control

The Pro Treeview and ListGrid are available for 32/64 bit Excel and Access. The Excel version will also work in Mac, one or two features are disabled for Mac but we’re working on it. Unlike our free treeview they are self contained in their own files and designed to work more like real controls.

For more details and if interested to try either of these ‘controls’ please contact us:

Pro Treeview enquiry

Pro Listgrid enquiry

Please note that the pro versions are paid versions. Pricing available upon request by using the links above.

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 697 in total (Show All Comments):

 


Comment by: Peter Thornton (10-5-2019 11:46:00)

Hi Robert,

Although possible I don't recommend including wheel scroll, and definitely not in 64 bit. If interested it is included in the 'pro' version (see above).

 


Comment by: Peter Thornton (10-5-2019 12:01:00)

Hi Baudi,

Normally the tree and nodes should appear where and as expected, I'm not sure why for you it becomes centered or quite what you mean by 'on the last record' (unless you set the last node as the activenode). If you want you can send me a screenshot off-line.

As far as the treeview is concerned I wouldn't expect use of DoCmd to make a difference reduce load time. In the free version time is mainly involved with the creation of controls as individual components, with 1600 nodes that could be several times that quantity and would take a while. FWIW the pro is designed differently, 1600 nodes would take an eye blink to create.

 


Comment by: Andrew (30-5-2019 11:16:00)

Hi
This is a great and very welcome solution. 2 questions:
1. How do I allocate different background colours to nodes based on specific data values for that node eg. status
2. How do I open a related pop-up form based on the node index.

Best Regards

 


Comment by: Salim Talal (30-5-2019 22:31:00)

Am trying to download but error popping up and terminating download.

 


Comment by: Jan Karel Pieterse (31-5-2019 11:50:00)

Hi Salim,

Which error do you get during the download?

You can find example code in the demo file. The NodeRemove example is in the ufDemo form's code, in the mcTree_KeyDown event.

 


Comment by: Jan Karel Pieterse (31-5-2019 16:09:00)

Hi Andrew,

The clsNode class has a BackColor property you can use to set the node color.

If you click a node, the tree's click event is triggered, giving you the clicked node, see ufDemo in the demo file:

'This gets fired when a node is clicked
Private Sub mcTree_Click(cNode As clsNode)

 


Comment by: Andrew (7-6-2019 11:40:00)

Really impressed by your treeview solution!

I highlight the selected node by setting .Bold to true. Is there a more direct way to set the previously selected node to .Bold = False ? At the moment I am recreating the entire tree but then the focus is lost on the selected node.

Best Regards
Andrew

 


Comment by: Jan Karel Pieterse (7-6-2019 13:34:00)

Hi Andrew,

Does the current background color highlight work not for you?

 


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