AngularJS 2输入字段不更新用于Jquery Date Picker日期更改的ngModel

Question

我在angularjs 2组件中遇到Jquery UI datepicker的问题.

它显示日期日历的更改日期,但不更新基础ngModel:dateSelected.

dateSelected: string = '';

这里的日期选择器输入字段是:

<input type="text" class="form-control" [(ngModel)]="dateSelected" name='datepicker1' id='datepicker1' placeholder="Select a date"/>

我正在尝试将此选定日期从this.dateSelected模型设置为第二个日期选择器,它不起作用.

$("#datepicker2").val(this.dateSelected);

另一方面,如果我通过JQuery val方式读取所选日期,它可以正常工作.

  var selectedDateInPicker = $("#datepicker1").val();     
   $("#datepicker2").val(selectedDateInPicker);

这是代码plunker:https://plnkr.co/edit/iLAFa8yrCLeTcd27G8bY ？ p = preview

你能帮忙吗？

Answer 1

更新

也许你想编写将实现的自定义指令ControlValueAccessor:

declare var $: any;

@Directive({
  selector: '[datepicker]',
  providers: [{
    provide: NG_VALUE_ACCESSOR,useExisting: 
    forwardRef(() => DatePickerDirective),
    multi: true
  }]
})
export class DatePickerDirective implements ControlValueAccessor {  
    value: string;

    constructor(protected el: ElementRef) {}

    ngAfterViewInit(){
      $(this.el.nativeElement).datepicker({
        changeMonth: true, 
        yearRange: "1:100", // you can pass it as @Input options  
        changeYear: true
      }).on('change', e => this.onModelChange(e.target.value));
    } 

    onModelChange: Function = () => {};

    onModelTouched: Function = () => {};

    writeValue(val: string) : void {
        this.value = val;
    }

    registerOnChange(fn: Function): void {
        this.onModelChange = fn;
    }

    registerOnTouched(fn: Function): void {
        this.onModelTouched = fn;
    }
}

Plunker示例

起源

我认为您可以使用以下方法来完成它:

$(selector-ng-datepicker).datepicker({
  changeMonth: true,
  yearRange: "1:100",
  changeYear: true
}).on('change', e => this.dateSelected = e.target.value);

更新了Plunker