Bug report

In the TreeList, the row colors are not consistent with other technology divisions, e.g. Angular. With the Classic Silver theme, the rows are not consistent regarding the alternating background colour approach. Additionally, in the Default theme, the rows are not as differentiated as they should be by design.

Note: the issue appears to be related to the k-treelist-group class on the elements in the TreeList.

Workaround: https://dojo.telerik.com/ORIjOcAB/3

Reproduction of the problem

1. Open the TreeList Overview demo with Classic Silver theme.

Current behavior

The rows' background color are not consistent in regard to alternative background colors.

Expected/desired behavior

The rows' background colors should be consistent with the design.

Environment

• Kendo UI version: 2024.1.130
• Browser: [all ]

Bug report

When there is a frozen column in the TreeList, not all the columns are resized correctly on double-clicking on the resize handler.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliK/Aticudup
2. Double-click between the LastName and Position columns -> the LastName column is resized based on the content.
3. Double-click between the Position and Ext columns

Current behavior

The Position column is not resized and a scrollbar may appear depending on the width of the screen

Expected/desired behavior

The behavior when clicking on the drag handler should be the same for all the columns. In the described scenario the Posiiton column should be resized as well.

Environment

• Kendo UI version: 2024.1.130
• Browser: [all ]

Bug report

When an item is expanded and the refresh icon is displayed due to an issue with the sent request (for example а failed request), the icon gets replaced by a loading indicator once another item is expanded.

Reproduction of the problem

1. Open the Dojo example - https://dojo.telerik.com/ebehaBAL
2. Expand the 'First Expand' item.
3. Expand the 'Last Expand' item.

Current behavior

After expanding the second item, the refresh icon from the first item disappears and a loading indicator replaces it.

Expected/desired behavior

The refresh icon should still be displayed and should not be replaced by a loading indicator.

Environment

• Kendo UI version: 2023.2.718
• Browser: [all]

Hi, I found a bug which is reproduced in following dojo: https://dojo.telerik.com/OcaTEbOk
I need to disable row which meet some conditions after dataBound event. To do that class 'k-disabled' is added to each tr in grid and it works fine. Now, I collapse node with disabled rows and expand it again. Even nodes are indeed disabled but odd nodes are enabled (k-disabled class is removed from these rows). Check example provided above. Try to collapse 'Constance Vazquez' node (there are only disabled rows there) and expand again. 

The Kendo TreeList has an incorrect colspan value for the headers when the first column is hidden and the file is exported to Excel.

Dojo:

https://dojo.telerik.com/IFuCutaV/4 

The names of the headers are not displayed in the correct positions.

### 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

Ticket ID: 1489274

The TreeList reorderable functionality does not work when using a different field name for the parentId (not the default parentId).

Reproduction

In the example below the treelist with parentId: ''parentId" works well when you drag Carla under Ashley. But in the second treelist, Carla disappears 

[Dojo]

Environment

* **Kendo UI version:** 2020.3.915

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.

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.

 

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

### 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] 

Hi 

Noticed an issue with Tree list pagination, after applying filter.Please find attached screen recorder for the same.

Same issue i had in my application, which was able to reproduce using the  Telerik Demo's from https://demos.telerik.com/kendo-ui/treelist/index

--When it first load and minimize/collapse the parent it correctly shows page 1 as available pages.

-->Then Apply filter as shown in recorder, which then shows pages up to 5 where there were no records to display from page 2 to 5. Which is quite misleading.
 
Please find attached recorder.