Adding a new row is also simple in dhtmlxTreeGrid with the help of the following method:

        treegrid.addRow(new_id, text, ind);

The parameters here are responsible for the following:

• new_id - id of the new row;
• text - array|string of row labels, may be a comma separated list or an array;
• ind - should be set to null;
• parent_id - id of the parent row;
• img - images url for this new row;
• child(true|false) - child flag, optional.