By default, grouping is disabled and the
:groupable option is set to
To enable grouping, set
true. As a result, the header renders a new area which allows the user to drop a column on it and group the data by that column. You can also group the data by multiple columns through dragging a second column onto the grouping header.
<kendo-grid :groupable='true' </kendo-grid>
For more information on grouping, refer to the documentation of the Kendo UI Grid for jQuery.