SMART datagrid v.1 > Classes > GridBase
It will be fired after the user clicks check all mark of grid header or call checkAll to change the checked state of all rows.
If it is called by user click, onAllCheck event will be fired just before the change.
grid.onAllChecked = function (grid, checked) {
// If call checkAll(), it will automatically not change all check marks.
grid.setAllChecked(checked);
};