New to Telerik UI for ASP.NET Core? Download free 30-day trial

Selection

By default, selection in the TreeList is disabled.

To boost the performance of the TreeList when it is rendering a huge number of items and selection is enabled, use paging and a reasonable page size.

The Kendo UI Treelist exposes different modes of row selection:

Row Selection

To enable the selection functionality of the TreeList, set the Selectable option to true. As a result, the default single-row selection functionality will be applied.

    .Selectable(true)

Single Row Checkbox Selection

To enable checkbox selection, add a column to the columns collection of the TreeList and set the Selectable option to true:

    columns.Add().Selectable(true);

In order to select or deselect all of the child items of the currently selected row, enable the includeChildren option:

    columns.Add().Selectable(true).IncludeChildren();

The TreeList does not support the simultaneous usage of the built-in checkbox-column selection and the selection which is enabled through the Selectable option.

See Also

Selection of the TreeList HtmlHelper for ASP.NET Core (Demo)

In this article