As discussed on the forum (http://www.telerik.com/forums/virtualization-for-treelist) please improve the rendering/scrolling/expanding/collapsing performance of TreeLists with many expanded rows.

Grids support virtualization and work well with hundreds of thousands of rows (http://demos.telerik.com/kendo-ui/grid/virtualization-local-data). Perhaps virtualization can be added to TreeLists to achieve similar results?

Much like how the Grid has column grouping, it would be nice if the TreeList had this as well.

http://demos.telerik.com/kendo-ui/grid/multicolumnheaders

I would like to use drag and drop on treeList to reorder rows (with same parent) like on treeView or at least to have same events (drag, dragstart, dragend, drop), where I'll be able to change behaviour.

Great work on this control boys.... I reckon it needs Filter Row, Multiple Column Sort, Paging to make it consistent with the grid.

Regards,

Scotty

Request to add Batch Editing feature for Kendo Tree List

Please, add for TreeList support of setOptions and getOptions methods.

Support inline editing in Treelist

apply a row template to the TreeList !

Is there any support for checkbox columns in the treelist to behave the same way as the kendoTreeView checkboxes? 

(ie, checking or unchecking parent should check/uncheck all children? and checking or unchecking children should update parent check state (possible indeterminate states))

Please add keyboard navigation to the TreeList, just like the same feature in the Grid

When you add keybord navigation to the TreeList, alongside with the ability to drag and drop TreeList rows, keyboard events won't fire.

http://jsfiddle.net/ahz94f1j/2/

It looks more like an simple oversight, but we asked suppport and they responded that we should make a suggestion here.

Hi, 
it would be really helpful to have an event like beforeEdit (present in the Grid) in order to eventually cancel the edit event for certain rows.

For example: I want the user to be able to edit only nodes without children and, as today, i cannot cancel the edit event.

Tanks

Please add an ability to expand/collapse tab groups in treelist