The following code works in Angular 1.5. The <tr> element will only be rendered if the 'showFields' flag for that row key is enabled.
<table>
<ng-container *ngIf="showFields[row.key]">
<tr *ngFor="let row of rows">
<td>{{row.key}}</td>
<td>{{row.value}}</td>
</tr>
</ng-container>
</table>
Note that the 'row' variable from the ngFor is visible to the enclosing ngIf. This no longer works in Angular 2+ because the scope of the ngFor variable is now confined to the element. How could I achieve the same effect?
You could just switch the ngFor
and ngIf
, like so:
<table>
<ng-container *ngFor="let row of rows">
<tr *ngIf="showFields[row.key]">
<td>{{row.key}}</td>
<td>{{row.value}}</td>
</tr>
</ng-container>
</table>
Instead of using a separate showFields
boolean array, you could also think about adding a new property showField to the row object, then you can simply check *ngIf="row.showField"
, which prevents out of bounds exceptions.
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