Demo Plnkr
You can bind to a date using the following format: yyyy-MM-ddTHH:mm
, which you can also get from date.toISOString().slice(0,16)
(the slice removes the time portion after the minutes).
@Component({
selector: 'app',
template: `<input type="datetime-local" [value]="date"
(change)="date=$event.target.value" /> {{date}}`
})
export class AppComponent {
date: string;
constructor() {
this.date = new Date().toISOString().slice(0, 16);
}
}
Keep in mind that date.toISOString()
will return a date offset from local time. You can also construct the date string yourself:
private toDateString(date: Date): string {
return (date.getFullYear().toString() + '-'
+ ("0" + (date.getMonth() + 1)).slice(-2) + '-'
+ ("0" + (date.getDate())).slice(-2))
+ 'T' + date.toTimeString().slice(0,5);
}
If you want to be able to bind the select to a Date
model, you can use this to build a custom date component:
@Component({
selector: 'my-date',
events: ['dateChange'],
template: `<input type="datetime-local" [value] = "_date"
(change) = "onDateChange($event.target.value)" />`
})
export class MyDate{
private _date: string;
@Input() set date(d: Date) {
this._date = this.toDateString(d);
}
@Output() dateChange: EventEmitter<Date>;
constructor() {
this.date = new Date();
this.dateChange = new EventEmitter();
}
private toDateString(date: Date): string {
return (date.getFullYear().toString() + '-'
+ ("0" + (date.getMonth() + 1)).slice(-2) + '-'
+ ("0" + (date.getDate())).slice(-2))
+ 'T' + date.toTimeString().slice(0,5);
}
private parseDateString(date:string): Date {
date = date.replace('T','-');
var parts = date.split('-');
var timeParts = parts[3].split(':');
// new Date(year, month [, day [, hours[, minutes[, seconds[, ms]]]]])
return new Date(parts[0], parts[1]-1, parts[2], timeParts[0], timeParts[1]); // Note: months are 0-based
}
private onDateChange(value: string): void {
if (value != this._date) {
var parsedDate = this.parseDateString(value);
// check if date is valid first
if (parsedDate.getTime() != NaN) {
this._date = value;
this.dateChange.emit(parsedDate);
}
}
}
}
Users of your component would bind to a Date
model with two-way model binding:
@Component({
selector: 'my-app',
directives: [MyDate],
template: '<my-date [(date)]="date"></my-date> {{date}}'
})
export class AppComponent {
@Input() date: Date;
constructor() {
this.date = new Date();
}
}
Or if you want to avoid custom tags, rewrite the component as a directive:
<input type="datetime-local" [(date)]="date" />
Demo Plnkr with Directive