Currently, I am delving into the world of Angular. One challenge I have been tackling is creating a custom form control that includes a mat-select. The goal is for the submitted form value to be the item selected in the dropdown.
After sifting through numerous tutorials and documentation, I finally pieced together a solution which you can see in this stripped-down example on StackBlitz.
Alas, despite my efforts, it still doesn't seem to work as intended. Why might that be?
Don't complicate things too much. Implementing ControlValueAccessor is not necessary for a basic scenario like this. Just pass the FormControl to the child component using a regular @Input().
dropdown.component.ts
import { Component, OnInit, Input } from '@angular/core';
import { FormControl } from '@angular/forms';
@Component({
selector: 'dropdown',
templateUrl: './dropdown.component.html',
providers: [ ]
})
export class DropdownComponent implements OnInit {
@Input() ctrl: FormControl;
@Input() options: string[];
ngOnInit() { }
}
dropdown.component.html
<mat-form-field>
<mat-select [formControl]="ctrl" placeholder="Select an option">
<mat-option *ngFor="let option of options" [value]="option">
{{ option }}
</mat-option>
</mat-select>
</mat-form-field>
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