The Angular Tree Grid allows selecting rows or cells. One or more rows or cells can also be selected by holding Ctrl or Command or Shift, or programmatically.
A range of cells can be selected by dragging the pointer over cells. Also, press and hold CTRL or SHIFT while clicking a cell to select the desired cell or range of cells
Users can select multiple Tree Grid records with the help of a checkbox in each row. The selection persists even after performing any action in the Tree Grid. It also provides an option to select or deselect all the rows in a Tree Grid using a checkbox in the corresponding column header.