0 && grid.selectionService.areAllRowSelected()"
[disableRipple]="true"
[ngStyle]="{'visibility': grid.isMultiRowSelectionEnabled? 'visible' : 'hidden' }"
[indeterminate]="context.selectedCount > 0 && grid.selectionService.hasSomeRowSelected()"
[aria-label]="grid.headSelectorBaseAriaLabel"
#headerCheckbox>