# Two level heirarchical listbox example? **URL:** \ **Category:** macOS\ **Created:** [June 13, 2015, 2:21pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912 "2015-06-13T14:21:01Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 2:21pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/1 "2015-06-13T14:21:01Z")
Hi, does anyone know if there is an example anywhere of how to create a hierarchical listbox for OS X? Thank you all in advance. ---
**Author:** ![Christian\_Schmitz](https://forum.xojo.com/user_avatar/forum.xojo.com/christian_schmitz/32/158_2.png) [@Christian\_Schmitz](https://forum.xojo.com/u/Christian_Schmitz)\ **Post date:** [June 13, 2015, 2:25pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/2 "2015-06-13T14:25:05Z")
Did you into examples included with Xojo? ---
**Author:** ![Axel\_Schneider](https://forum.xojo.com/user_avatar/forum.xojo.com/axel_schneider/32/465_2.png) [@Axel\_Schneider](https://forum.xojo.com/u/Axel_Schneider)\ **Post date:** [June 13, 2015, 2:25pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/3 "2015-06-13T14:25:43Z")
/Example Projects/Desktop/Controls/ListBox/FileBrowser.xojo\_binary\_project ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 2:27pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/4 "2015-06-13T14:27:09Z")
Thanks Christian / Axel. I think I must have delete some example folders, as I looked there first of all, but they didn’t exist? I have just re-downloaded them, and now have them 🙂 Thanks. ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 3:49pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/5 "2015-06-13T15:49:33Z")
OK - this has me puzzled: I have created a new project file, and dragged in a Listbox which is set to hierarchical. I can add this code in the Listbox.open event - which successfully creates 2 Main Folders: `Me.AddFolder"Folder1" Me.AddFolder"Folder2"` Is there a relatively simple way to now add 2 sub folders to each of these, and then add 2 normal rows to each of these 2 subfolders? I’m sure this is probably ridiculously simple, but I’m staring at it, and nothing makes any sense ☹ Any help appreciated. Thank you all in advance. ---
**Author:** ![Christian\_Schmitz](https://forum.xojo.com/user_avatar/forum.xojo.com/christian_schmitz/32/158_2.png) [@Christian\_Schmitz](https://forum.xojo.com/u/Christian_Schmitz)\ **Post date:** [June 13, 2015, 5:04pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/6 "2015-06-13T17:04:48Z")
normally you get sub rows using Expand event. You can expand them in code by setting expanded(row) property. Or you check the indent parameter for InsertFolder/InsertRow methods. ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 8:42pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/7 "2015-06-13T20:42:25Z")
Thanks Christian, but I still cannot work out how to do this ☹ Does anyone by chance have an example project which simply shows how to have a TWO level hierarchical listbox? I can then spend hours looking at the code, and work out what is happening. I simply need a hierarchical listbox, which has main folders, which each contain 1 subfolder which in turn contains 1 normal row inside it. The examples I have found, either contain just 1 folder containing rows (which I can already do), OR, multi level folders which are so complex that I cannot understand them. Hence why I am looking for an example which has main folders \> sub folder \> row Hopefully someone is able to help. Thank you all in advance for any help you can offer. ---
**Author:** ![Christian\_Schmitz](https://forum.xojo.com/user_avatar/forum.xojo.com/christian_schmitz/32/158_2.png) [@Christian\_Schmitz](https://forum.xojo.com/u/Christian_Schmitz)\ **Post date:** [June 13, 2015, 8:45pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/8 "2015-06-13T20:45:12Z")
Why not simply add code in Expand event to add rows? They will have right indent. And you can toggle expanding with list.expanded(row) = true ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 8:46pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/9 "2015-06-13T20:46:13Z")
Christian, I need main folders, with sub folders, with rows. I cannot add code to the expand event, as I have no idea what I am doing ☹ ---
**Author:** ![Christian\_Schmitz](https://forum.xojo.com/user_avatar/forum.xojo.com/christian_schmitz/32/158_2.png) [@Christian\_Schmitz](https://forum.xojo.com/u/Christian_Schmitz)\ **Post date:** [June 13, 2015, 8:46pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/10 "2015-06-13T20:46:32Z")
and how do you have your data structured? ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 8:47pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/11 "2015-06-13T20:47:37Z")
I used the example single level hierarchical listbox from the Language Reference - but this only shows single level, and I need 2 level. ---
**Author:** ![Christian\_Schmitz](https://forum.xojo.com/user_avatar/forum.xojo.com/christian_schmitz/32/158_2.png) [@Christian\_Schmitz](https://forum.xojo.com/u/Christian_Schmitz)\ **Post date:** [June 13, 2015, 8:48pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/12 "2015-06-13T20:48:16Z")
put a listbox on your window and put this code in open event: [code] Listbox1.Hierarchical = true Listbox1.InsertRow 0,“Hello World 1” Listbox1.InsertRow 1,“Hello World 2”,1 Listbox1.InsertRow 2,“Hello World 3” Listbox1.InsertRow 3,“Hello World 4”,1 Listbox1.InsertRow 4,“Hello World 5” [/code] That fills the hierarchical listbox right away with indent. You can of course use InsetFolder have the triangle. ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 8:51pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/13 "2015-06-13T20:51:09Z")
Christian, Thanks but I already have a fully working single level hierarchical listbox - whereby the user clicks on the disclosure triangle in order to display the row. I need a top level folder, which when expanded, displays a sub folder, which when expanded shows a row. ---
**Author:** ![Christian\_Schmitz](https://forum.xojo.com/user_avatar/forum.xojo.com/christian_schmitz/32/158_2.png) [@Christian\_Schmitz](https://forum.xojo.com/u/Christian_Schmitz)\ **Post date:** [June 13, 2015, 9:51pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/14 "2015-06-13T21:51:16Z")
no, this is two level already!? ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 9:56pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/15 "2015-06-13T21:56:56Z")
The LR example is described as single level hierarchical, therefore I need a 2 level. If you are saying that a row in a folder, in another folder is 3 levels, then I need a 3 level. ---
**Author:** ![Christian\_Schmitz](https://forum.xojo.com/user_avatar/forum.xojo.com/christian_schmitz/32/158_2.png) [@Christian\_Schmitz](https://forum.xojo.com/u/Christian_Schmitz)\ **Post date:** [June 13, 2015, 9:58pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/16 "2015-06-13T21:58:23Z")
well, make a new project with a listbox and put code in open event: ` listbox1.Hierarchical = true listbox1.AddFolder "Hello" listbox1.Expanded(Listbox1.LastIndex) = true` than add an ExpandRow event to the listbox with this code: ```auto me.AddRow "Hello World" ``` run it and you see a listbox with two levels, the folder and the item inside. ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 10:01pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/17 "2015-06-13T22:01:34Z")
Christian, once again - I already have that. The Language Reference describes that as SINGLE level? I need another level. Two folders and a row. ---
**Author:** ![Jason\_King](https://forum.xojo.com/letter_avatar_proxy/v4/letter/j/e480ec/32.png) [@Jason\_King](https://forum.xojo.com/u/Jason_King)\ **Post date:** [June 13, 2015, 10:30pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/18 "2015-06-13T22:30:24Z")
Richard, try this example I just put together in a few seconds. Basically you add another folder in the Expand event, or just add normal rows. You should have a class that describes the data model you are representing in the listbox and it should make this pretty easy. [https://www.dropbox.com/s/zkp24ppu3i0vi1u/expand%20row%20listbox.xojo\_binary\_project?dl=0](https://www.dropbox.com/s/zkp24ppu3i0vi1u/expand%20row%20listbox.xojo_binary_project?dl=0) ---
**Author:** ![Richard\_Summers](https://forum.xojo.com/user_avatar/forum.xojo.com/richard_summers/32/477_2.png) [@Richard\_Summers](https://forum.xojo.com/u/Richard_Summers)\ **Post date:** [June 13, 2015, 10:46pm UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/19 "2015-06-13T22:46:41Z")
Thanks Jason. I will take a look after a cup of tea. This is giving me a real headache ☹ ---
**Author:** ![Harrie\_Westphal](https://forum.xojo.com/letter_avatar_proxy/v4/letter/h/7feea3/32.png) [@Harrie\_Westphal](https://forum.xojo.com/u/Harrie_Westphal)\ **Post date:** [June 14, 2015, 12:09am UTC](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912/20 "2015-06-14T00:09:02Z")
Richard, have you looked at the FileBrowser example that comes with Xojo. You can find it along the path Desktop/Controls/Listbox/FileBrowser.xojo\_binary\_project. It allows you to browse the contents of a hard drive. I quite after getting about 10 levels deep. If you can’t figure it out with that example you may never figure it out. 😉 [Next page](https://forum.xojo.com/t/two-level-heirarchical-listbox-example/24912.md?page=2)