<div 
    ng-click=grid.api.selection.toggleRowSelection(row.entity) 
    class="ui-grid-selection-row-header-buttons ui-grid-cell-contents ui-grid-cell-contents-updated" 
    ng-class="{'ui-grid-row-selected':row.isSelected || COL_FIELD}">
    <span class="fas" ng-class="{'fa-pen': COL_FIELD, 'fa-check': !COL_FIELD}"></span>
</div>