[ ANGULAR ] ngx-datatable toolTip

예시

 <ngx-datatable-column name="주문번호" prop="주문번호" [draggable]="false" [canAutoResize]="true" >
   <ng-template ngx-datatable-header-template let-column="column">
     <div class="d-inline-block datatable-header-cell-wrapper" ngbTooltip="결제관련 주문번호" container="body">
     	주문번호
     </div>
   </ng-template> 
 </ngx-datatable-column>