Angular Material 7 Datepicker:禁用多年视图 [英] Angular Material 7 Datepicker: Disable multi year view

问题描述

我正在使用来自@angular/material ^7.0.0-rc.0 的 MatDatepicker，并且我制作了一个复杂的过滤器，将时间选择器中的每个可见日期与具有大约 200 或 300 个值的数组的每一天进行比较.每次我将日期选择器切换到多年视图模式时，它都会中断应用程序.

I'm using the MatDatepicker from @angular/material ^7.0.0-rc.0, and I made a little complex filter that compares every visible day in the timepicker with every day of an array with about 200 or 300 values. It breaks the aplication every time I switch the datepicker to multi-year view mode.

我只想禁用或禁止多年视图模式，只让月模式和年模式工作.

I just want to disable or disallow the multi-year view mode, and let only month mode and year mode working.

HTML:

<mat-form-field (click)="picker.open()" class="date-field">
    <span>{{(dataFields['mosaic_'+REPORT_STAGES.PLANTING]['value'] | date: 'dd/MM/yyyy') || 'Não plantou'}}</span>
    <input matInput hidden [matDatepicker]="picker" placeholder="" [(value)]="dataFields['mosaic_'+REPORT_STAGES.PLANTING]['value']" (dateChange)="plantingDateChange($event)" [matDatepickerFilter]="datePickerFilter.bind(this)">
    <mat-datepicker #picker></mat-datepicker>
</mat-form-field>

我的过滤方法:

datePickerFilter(d: Date): boolean {

  const dAsDate = this.datePipe.transform(d, 'dd-MM-yyyy');

  const validDates = this.allowedDays.filter(e => {
    const eAsDate = this.datePipe.transform(new Date(e), 'dd-MM-yyyy');
    return eAsDate === dAsDate;
  });

  console.log(validDates);

  return (validDates.length > 0);
}

我在 A. Material 手册上没有找到任何可以帮助我的内容.希望任何人都可以！

I don't found anything on A. Material manual that can helps me. Hope anyone can!

非常感谢！

推荐答案

您可以将自定义组件作为日历标题传递，这将允许您覆盖当前允许用户选择多年视图的按钮.

You can pass a customized component as the calendar header, this will allow you to override the button currently allowing the user to select multi year view.

此示例无法选择多年.

https://material.angular.io/components/datepicker/overview#customizing-the-calendar-header

HTML

在 mat-datepicker

<mat-datepicker #picker [calendarHeaderComponent]="exampleHeader"></mat-datepicker>

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