I'm using angular 5 and I'm getting the console error:
Can't bind to 'ngValue' since it isn't a known property of 'mat-option'
My template looks something like as follows:
<mat-select placeholder="Select Book" name="patient" [(ngModel)]="selectedBook">
<mat-option *ngFor="let eachBook of books" [ngValue]="eachBook">{{eachBook.name}}</mat-option>
</mat-select>
I've imported both MatSelectModule
and MatOptionModule
.
How can we resolve this?
The accepted answer is not a solution but a work-around, as value
and [ngValue]
serve different purposes. value
can be used for simple string values, whereas [ngValue]
is necessary to support non-string values.
Per the documentation:
If you have imported the FormsModule or the ReactiveFormsModule, this value accessor will be active on any select control that has a form directive. You do not need to add a special selector to activate it.
If you are getting this error, you most likely need to import either FormsModule
or ReactiveFormsModule
into your app.
For example, in app.module.ts
:
import { FormsModule } from '@angular/forms';
// ...
imports: [
FormsModule,
...
]