I'm trying to get the updated date value back from the form but it's not working:
@Component({
selector: 'date-picker',
template:
`
<select [(ngModel)]="day" name="dayPicker" class="form-control" style="width: 80px" required>
<option *ngFor="let day of days" [value]="day">{{day}}</option>
</select>
<select [(ngModel)]="month" name="monthPicker" class="form-control" style="width: 80px" required>
<option *ngFor="let x of months" [value]="x.MonthId">{{x.MonthName}}</option>
</select>
<select [(ngModel)]="year" name="yearPicker" class="form-control" style="width: 100px" required>
<option *ngFor="let year of years" [value]="year">{{year}}</option>
</select>
`,
providers: [
{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => DatePicker),
multi: true,
}
]
})
export class DatePicker implements ControlValueAccessor, OnChanges, OnInit {
public _day: number = null;
public _month: number = null;
public _year: number = null;
@Input() public inputDate: Date;
@Input() public yearBegin: number;
@Input() public yearEnd: number;
@Output() public dateChange: EventEmitter<Date> = new EventEmitter<Date>();
private months: Month[];
private years: number[];
private daysInMonth: DaysInMonth[];
private days: number[];
private onChangeCallback: (_: any) => {};
private propagateChange = (_: any) => {};
so when i say change the year:
set year(val: number) {
this._year = val;
if(this._day != null && this._month != null) {
this.inputDate = new Date(this._year, (this._month - 1), this._day);
this.dateChange.emit(this.inputDate);
this.propagateChange(this.inputDate);
}
}
this is how I use it:
<form #personalInfoForm="ngForm" (ngSubmit)="onSubmit()" class="form-width">
<date-picker [(inputDate)]="parsedDate" name="BirthDate" [yearBegin]="1950" [yearEnd]="2020"> </date-picker>
</form>
When I change the date values around in the dropdowns and press the form's submit button I do not see the updated date. It's the same date my custom date picker control got initialized with.
I don't see anything listening for that EventEmitter.
You want something like (dateChange)="onDateChange($event.value)"
Where onDateChange($event.value)
is a method in the parent componenet which accepts the new value.
The angular documentation has a nice and simple example of this: https://angular.io/guide/component-interaction#parent-listens-for-child-event
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