Angular Material Table Apply Class based on [dataSource]

I have built an Angular Material Table and would like to use class error-text if the [dataSource] returns isActive=false.

I'm trying to do this with no luck:

<table
  mat-table
  [dataSource]="dataSource"
  matSort
  class="mat-elevation-z8 table table-striped"
  [ngClass]="dataSource?.isactive == 'false' ? 'error-text' :''"
>

My class isn't applied to the table.

I understand that I can apply this class to each row of my table, but this seems like the incorrect solution to me:

<ng-container matColumnDef="fullname">
    <th mat-header-cell *matHeaderCellDef mat-sort-header>
      {{ translate("name") }}
    </th>
    <td
      mat-cell
      *matCellDef="let element"
      [ngClass]="element?.isactive == 'false' ? 'error-text' :''"
    >
      {{ element.fullname }}
    </td>
  </ng-container>

Has anyone found a solution where I can simply state the ngClass once and it is applied to the whole table?