This sample demonstrates the selection functionality of the TreeGrid using checkbox selection, To select and unselect all rows use header checkbox. To select/unselect particular row, click the desired row.
TreeGrid mutliple selection can be achieved with help of checkbox in each row. To render checkbox in each treegrid row, you need to define column type as checkbox using columns->type property. Selection can be persisted on all the operations using selectionSettings-> persistSelection property. For persisting selection on the TreeGrid, any one of the column should be defined as a primary key using columns->isPrimaryKey property. In this demo, Tree Grid mutliple selection has been enabled with selection persistance. More information on the checkbox selection configuration can be found in this documentation section.