Hi Team,

I'd like to request the functionality to filter only parent records and not the child's records.

Thank you!

Hello,

We found a bug in the latest version of Kendo related to the reordering columns in Treelist when inside a Grid DetailTemplate

See the Dojo below to replicate the problem:

https://dojo.telerik.com/exotEsej

Expand the detail row under a grid row and attempt to drag one of the treelist column titles to the left or right and note that an error is thrown.

Uncaught TypeError: Cannot read properties of undefined (reading 'lockable')

Let us know when you have a workaround for this as it prevents us from promoting this version of Kendo to our production environment.

Thank you,

Brad Garner

Hi Team,

I would like to request when paging in the TreeList to include the prior parent node in the new page.  For example, if there is a parent node that has 30 child nodes, and the pageSize is 15, show the parent node on page 1 and 2.  

Thanks!

Hi Team, 

I would like to request the functionality to filter by parent items, and display all associated children. 

Thank you!

Bug report

When using a draghandle to drag a same level item below another item, it will not drop in the correct place.

Reproduction of the problem

1. Go to this Progress Kendo UI Dojo.
2. Try to drag Brian under Lillian as soon as the indicator says it's okay.

Current behavior

The item will revert back to the original position.

Expected/desired behavior

The item should be place in the expected dropped location.

Environment

• Kendo UI version: 2024.4.1112
• jQuery version: All Supported Versions
• Browser: all

Bug report

When a Kendo TreeList contains a parent row that is expanded and includes more than two child records, performing a delete operation results in only 3 delete requests being sent. Specifically, two for the last two child records and one for the parent record.

Reproduction of the problem

Here is a Dojo for reproduction: https://dojo.telerik.com/Cqxjobpr

Current behavior

Sends only 3 delete requests for the last 2 children and the parent.

Expected/desired behavior

Should send individual delete requests for the parent and every child

TicketID:

Here is the TicketID: 1676145

Environment

• Browser: [all]

When attempting to use the filter function on a TreeListDataSource, the linked TreeList control reports that are no records to display regardless of what filter is entered.  This includes attempts to clear/reset the filters using an empty object/null and behaves the same regardless of whether serverFiltering is enabled.

The TreeListDataSource object contains the expected records.

When using the grid in navigatable mode, cells are correctly described, as seen in line 6014 of kendo.grid.js:

if (navigatable) {
   rowTemplate += ' aria-describedby=\'' + column.headerAttributes.id + '\'';
}

This simple, yet essential functionality is missing in TreeList.

Hi 

In the TreeList control when I Freeze first column and apply multi column header in some other column, then setting the filterable property for a column after multi column header is applied to some other column instead of the column on which it is set.

You can find a working sample here.

In this example note that I have set the filterable property false for field "Phone" but its effect is applied on "Position" field and its filters are hidden. Similarly if you apply filterable: false on "Extention" field then the filter on "Address" field will be gone.

Kindly provide a solution for this problem, also let me know if a work around exists for this issue.

### Bug report

Treelist column's filterable property is applied to the wrong field when column locking and a multi-column header is applied.

Reported in: 1446991

### Reproduction of the problem

https://dojo.telerik.com/@Mearaj_6303/EDuhUlOG

### Current behavior

The Filter from "Position" is hidden.

### Expected/desired behavior

The Filter from "Phone" is hidden.

### Environment

* **Kendo UI version:** 2019.3.1023
* **Browser:** [all] 

Steps to reproduce the bug:

1. Navigate and run the DOJO example here--> https://dojo.telerik.com/uFIWePam

2. Click on "Export to Excel"

3. Either download the file or just click Cancel/Close the download dialog box.

4. Now expand the first node in the list.

5. Appears that all the other nodes get expanded.

The functionality of treelist with drag&drop without autosync and without batch saving, at the end of the drop the change is not saved.

There is available a hack in the forum

https://www.telerik.com/forums/drag-and-drop-not-hitting-update-action

For me this is a bug because I would expect for the change with drop to be automatically saved but it seems that for your support it is not. I understand that all the other changes are saved by the user with a button but the drag&drop does not have a button for it.

So if you do not want to implement this at least add a warning in the drag&drop demos page about this and provide the hack from the forum link or something so that others can know that they have to apply the hack in order for the drag&drop change to be automatically saved.

Feature enhancement
Scrolling on TreeList locked columns is slow/jumpy

Reproduction of the problem
https://dojo.telerik.com/IcoyOcAK

- Open above dojo

- Expand First Name column items until a vertical scrollbar appears 

- Scroll with the mouse over the locked column (First Name)

Current behavior
Scrolling is slow an jumpy

Expected/desired behavior
Scrolling shall be smooth, the same as when scrolling over the non-locked columns

The grid dataBinding event exposes useful information like the action, based on which I can implement my logic.

The treeList equivalent only has the sender, making it virtually useless.

Bug report

TreeList Drag and drop row to the bottom of the list does not work when the bottom item has no children

Reproduction of the problem
1. Open the following Dojo: 

https://dojo.telerik.com/eTiZONIj

2. Drag Jane and Drop it under Maria

Current behavior

Jane goes above Maria
Expected/desired behavior
Jane shall be placed at the bottom of the list under Maria

Environment
Kendo UI version: 2020.3.1118
Browser: [all]

### Bug report

When custom classes are set via the headerAttributes of the column and the showColumn is called, the predefined classes are wiped away

### Reproduction of the problem

1. Set custom class via headerAttributes.

2. Call the showColumn method.

3. Custom classes are wiped away.

Dojo sample for reproduction:

https://dojo.telerik.com/UJalevej

### Expected/desired behavior

The classes should be retained after the method is called.

### Environment

* **Kendo UI version:** 2021.1.119
* **jQuery version:** 1.12.4
* **Browser:** [all]

### Bug report

The change event is not triggered, when a checkbox is selected in the Keno UI TreeList widget.

### Reproduction of the problem

1) Create a checkbox selectable TreeList widget;

2) Select/check any of the checkboxes;

3) The change event is not triggered;

4) Unselect/uncheck any of the checkboxes;

5) The change event is triggered;

A Dojo sample for reproduction: https://dojo.telerik.com/EWUFOhip

### Expected/desired behavior

The change event should be triggered, when a checkbox is selected in a checkbox selectable TreeList widget.

### Environment

* **Kendo UI version:**2021.1.119
* **jQuery version:** 1.12.4
* **Browser:** [all]

Hello,

We have a grid of tasks and each row has a detail's pane (hierarchy) that shows, when expanded, a tree list of sub-tasks.

If you attempt to delete a tree list node (not the last) it will delete the node correctly, but will trigger the grid's to prompt the user to make sure the item should be deleted or not (which is NOT normal). But when this is shown, it is already too late to Cancel has the tree list has already deleted the item. Users don't understand why they are given a chance to prevent the deletion, but it does not work.

So in short, we want the tree list, when the users deletes a node, to not trigger (i.e. to prevent) the grid's item deletion.

Here is a dojo that shows what happens:

https://dojo.telerik.com/APaXoRuR

1. Load the Dojo and open the Network tab of the developer toolbar
2. Expand one of grid's detail row
3. Attempt to delete one of the tree list items (except the last item)
4. Note the dialog popup which is not normally shown for a treelist
5. Note the Item is already deleted anyway... before the popup is shown...
6. Click Cancel on the dialog
7. The item disappears even if you did cancel

Please let me know if you need more information,

Regards,

Eric.

Eric Boulé, B.Eng.
Solution Architect
Centre d’Essais Techniques de la Qualité (CETQ) | Quality Engineering Test Establishment (QETE)
Department of National Defence / Government of Canada
Eric.Boule@forces.gc.ca