How to use a pipe in Angular Material?

Question

How to use a pipe in Angular Material? I'd like to fill a placeholder in a mat-select via a pipe. The pipe I programmed works, but when I try to use it with Angular Material elements it doesn't work. I can use a Variable to fill the Placeholder, but why does an expression for pipes not work?

<input readonly matInput [matDatepicker]="picker1" placeholder="{{lblStartDatum}}" [(ngModel)]="StartAuswahl" (ngModelChange)="onDateChanged(1)">

this works!

<!--input readonly matInput [matDatepicker]="picker1" placeholder="{{TranslatedItems | menuItem:"lblZeitraumVon"}}" [(ngModel)]="StartAuswahl" (ngModelChange)="onDateChanged(1)"-->

This does not work.

Answer 1

In my project:

value="{{totalProjectCost | currency}}" 

Make sure to use the double quotes.