javascript - Angular: Conditional class whit ngClass don't work

Question

What is wrong with my Angular code?

<ng-container matColumnDef="statusDescription">
           <th mat-header-cell *matHeaderCellDef width="300">Status</th>
           <td mat-cell *matCellDef="let element" [ngClass]="{'red' : element['statusDescription']  == 'Cancel'}">
             {{ element["statusDescription"] }}
           </td>
         </ng-container>

It doesn't read line by line in the list, so false at all

Answer 1

等待大神答复