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