The rowSortingMode (string) specifies which type of tree nodes should be sorted.
Available since 2020.1.4246.
See also row sorting.
"LeavesOnly"
dp.rowSortingMode = "ParentsOnly";
Event calendar/scheduling AJAX components. Available for JavaScript/HTML5/jQuery, ASP.NET, ASP.NET MVC. Build resource booking, project management, time tracking applications, personal and shared event calendars.