### Bug report

When the footerTemplate option of the TreeList is specified for a column that is part of a multi-column header configuration, the template is not rendered.

### Reproduction of the problem

1. Set a footerTemplate option for the nested column. Dojo sample for reproduction:

https://dojo.telerik.com/iKisAZaS/16

### Environment

* **Kendo UI version:** 2020.1.219
* **jQuery version:** 1.12.4
* **Browser:** [all ] 

### Bug report

The height of the locked content in Chrome with jQuery version 3.4.1 (all jQuery versions after 3.1.1) is not calculated correctly.

### Reproduction of the problem

1. Set locked content in the TreeList.
2. The height is not calculated correctly.

Dojo sample for reproduction:

 https://dojo.telerik.com/EsobuqAH

### Environment

* **Kendo UI version:** 2020.1.219
* **jQuery version:** 3.4.1
* **Browser:** [Chrome | IE | Edge] 

Collapse state is incorrect when exporting TreeList while some nodes are collapsed.

• https://dojo.telerik.com/@pmilchev/aMUniceC 

Reproduction steps: 

• Open and run the dojo example
• Click the Export button in TreeList
• Click the toggle button of the item

Actual: Alert shows "Collapsed"

Expected: Alert shows "Expanded"

Regression introduced in 2019.2.514
Related to: https://github.com/telerik/kendo-ui-core/issues/4696 

Code: https://github.com/telerik/kendo/blame/master/src/excel/main.js#L43 

Hi Team,

I'd like to request for the Kendo UI TreeList have the ability to export to Word.  

Thanks!

Bug report

If the read() method of the data source of the TreeList widget is called, the pager is not refreshed. It retains the only pages and information.

Reproduction of the problem

1. Update the data source of the TreeList widget.

2. Notice that the pager is not completely refreshed.

A Dojo sample for reproduction:

https://dojo.telerik.com/aHIPUgIz

Expected/desired behavior

Refresh the pager whenever the data source of the TreeList is refreshed.

Environment

* **Kendo UI version:** 2019.3.1023
* **jQuery version:** 1.12.4
* **Browser:** [all] 

Bug report

TreeList shows wrong total and paging when we expand or collapse a row after filtering.

Reproduction of the problem

1. Go to TreeList demo link - https://demos.telerik.com/kendo-ui/treelist/index
2. On "Position" column apply filter with value "VP, Engineering"

Expected/desired behavior

The shown message within the pager has to be "1 - 4 of 4 items" instead of "1 - 15 of 4 items".

Environment

* **Kendo UI version:** 2019.3.1024
* **jQuery version:** 1.12.4
* **Browser:** [all] 

### 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 

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.

Hi,

column.values like feature in kendoGrid would be ideal in kendoTreeList.

Thanks

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.

if you look at this dojo (http://dojo.telerik.com/oSOloLuR) the attributes work for kendoGrid.  If you change to a kendoTreeList, the conditional attributes do not work.  Is there a different way to change the attribute?  I tried in the template, but can't set the background-color style in the temple.

Code from dojo with kendoGrid changed to kendoTreeList:

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.

The TreeList control doesn't allow for a fixed row of aggregates at the bottom of the control. I would like to have the option to enable a row of "Grand Total" aggregates that are aggregates of the whole data set. This row would be fixed at the bottom of the control and wouldn't be scrollable. This is functionality that the Kendo Grid has that isn't available in the Kendo TreeList. 

https://www.telerik.com/forums/treelist-scroll-and-footer-disappears

When the Kendo UI Treelist is horizontally scrollable and a filter is applied which returns no items, the scrollbar disappears. Therefore, if the column is one of the hidden ones, it would be impossible to navigate to it in order to clear the filter. 

A Dojo sample for the reproduction of the issue:

https://dojo.telerik.com/IQuHuNej

Hi

Would like to request for Treelist with Server side paging and load childs on expand parent. Thank you.

Steps to reproduce bug:

• Navigate to demo with Multi-columns header https://demos.telerik.com/kendo-ui/treelist/multicolumnheaders
• Click on "Edit this example" button
• On dojo edit code to add needed lib:
• <script src="https://kendo.cdn.telerik.com/2019.1.220/js/jszip.min.js"></script>

• add also toolbar: ["excel"] on config options
• Run dojo and hit export

The result has broken Headers