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Home > English site > Articles > Treeview control

An MSForms (all VBA) treeview for Access, Excel And Word

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)
Excel 2016 (32 and 64 bit)

Access 2003
Access 2010 (32 bit)
Access 2010 (64 bit)
Access 2016 (32 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 37.785 times)

Download the treeview sample Word document (build 026, 15 Oct 2015, downloaded 11.867 times)

Download the treeview sample Access database (build 026, 16 Oct 2015, downloaded 30.854 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. Timing experiments have proven that the pro version of our treeview outperforms the common controls treeview.

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 in a trial license 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.


Comments

Showing last 8 comments of 771 in total (Show All Comments):

 


Comment by: Claus Krog Mikkelsen (17-3-2020 22:17:00)

Hi Jan, thanks for a very quick answer - but I can't make it work.
This is what I do:
Set cNode = ParentSampleNode.AddChild(Sample_number, Sample_name, "iS1", "iS1")

and later trying to change the icons:
cNode.ImageMain = "iS2"
cNode.ImageExpanded = "iS2"
SampleTree.Refresh

But I found a solution in the comment-list from 11-4-2014 16:35:10, doing this:
cNode.ImageMain = "FLGUSA02"
cNode.Expanded = Not cNode.Expanded
cNode.Expanded = Not cNode.Expanded

Is this still the way to make it work?

Best Regards
Claus

 


Comment by: Jan Karel Pieterse (18-3-2020 10:21:00)

Hi Claus,

Yes that is a good way to do it. If you assign a different Icon name to a node, it does not trigger reloading the icon, changing the expanded state does.

 


Comment by: Andreas Katits (21-4-2020 11:28:00)

Hi,
I use the free version of the Treeview and I have a suggestion in your Code.

Module clsNode
Private Sub moEditBox_KeyDown

You make a distinction between Mac and Win because of NewLine. You can use just the constant vbNewLine. This constant works on every OS properly. It uses I think vbCrLf on Windows and vbCr on Mac.

Best Regards
Andreas

 


Comment by: Jan Karel Pieterse (21-4-2020 13:00:00)

Hi Andreas,

Thank you!

 


Comment by: EJ (23-4-2020 10:20:00)

There might be some missing parts within the Access version?
I got messages like "User-defined Type not defined".
I running office 365, is that a problem?
Do you have any solutions?

 


Comment by: Peter Thornton (23-4-2020 13:42:00)

Hello EJ,,

I have just tested the current Access download in Office 365 and it all works fine for me. Are your security settings enabled for macros and ActiveX controls (for the MSForms Frame on the Access form with the images). If all enabled where are are you getting those messages?

 


Comment by: Ayush (15-5-2020 20:49:00)

I was trying to save the date, after updating the tree, but while reading it to populate tree, it is throwing error at
Set nNode = nNode.AddChild(, CStr(vData(lRow, lLevel)))

 


Comment by: Peter Thornton (16-5-2020 12:02:00)

Hi Ayush,

Does nNode refer to a node (clsNode) that already exists, if so-
What is the value of vData(lRow, lLevel) when the error exists. If lRow and lLevel are within the bounds of the array, can the element value be converted to a string with, for example Null and error values can't be.

 


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