angular - DatePicker 在 Mat Dialog 窗口中不工作

Question

我正在尝试创建一个表单，其中包含两个使用 Angular Material 的开始/结束日期日期选择器。出于某种原因，当我在对话框窗口的表单内添加日期选择器时，从图像中可以看出，对话框的布局没有正确呈现。这可能是什么原因造成的？

模板:

<div class="consumption-form">
    <form [formGroup]="consumptionControl" id="consumptionForm">
        <p class="consumption-field">
            <mat-form-field hintLabel="Max 10 characters" appearance="fill">
                <mat-label>BGpoint</mat-label>
                <input matInput #BGpoint maxlength="10" placeholder="BG5521900640000000000000001668712" formControlName="BGpointControl">
                <mat-error>
                    <span *ngIf="consumptionControl?.controls.BGpointControl?.errors?.pattern">Field should contain 10 numeric
          characters!</span>
                </mat-error>
                <mat-hint align="end">{{BGpoint.value?.length || 0}}/10</mat-hint>
            </mat-form-field>
        </p>
        <p class="consumption-field">
            <mat-form-field appearance="fill">
                <mat-label>Choose a start date</mat-label>
                <input matInput [matDatepickerFilter]="myFilter" [matDatepicker]="picker">
                <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
                <mat-datepicker #picker></mat-datepicker>
            </mat-form-field>
        </p>

        <button mat-raised-button type="submit" (click)="submit(BGpoint) " mat-icon-button matTooltip="Click to search for results " [matTooltipPosition]="position.value " [matTooltipShowDelay]="500
                " [matTooltipHideDelay]="500">
            <mat-icon aria-label="Search button icon ">search</mat-icon>
        </button>

    </form>
</div>

组件 ts:

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormControl, Validators } from '@angular/forms';
import { TooltipPosition } from '@angular/material/tooltip';

@Component({
  selector: 'app-consumption-details',
  templateUrl: './consumption-details.component.html',
  styleUrls: ['./consumption-details.component.css']
})
export class ConsumptionDetailsComponent implements OnInit {

  myFilter = (d: Date | null): boolean => {
    const day = (d || new Date()).getDay();
    // Prevent Saturday and Sunday from being selected.
    return day !== 0 && day !== 6;
  }
  
  consumptionControl: FormGroup;
  private positionOptions: TooltipPosition[] = ['after', 'before', 'above', 'below', 'left', 'right'];
  position = new FormControl(this.positionOptions[0]);
  constructor() { }

  ngOnInit(): void {
    this.consumptionControl = new FormGroup({
      BGpointControl: new FormControl('', [Validators.minLength(1), Validators.maxLength(20), Validators.pattern("*")]),
    });
  }
  submit(BGPoint:string){

  }

}

对话窗口显示为屏幕左侧从上到下的白色 strip 。

Answer 1

我知道我参加聚会有点晚了，但我遇到了与 OP 类似的问题。在我的例子中，mat-datepicker 工作正常，直到我试图将它放在 mat-dialog 窗口中的表单中。即使在我的模块中导入了 MatNativeDateModule 和 MatDatepickerModule，我仍然在控制台中收到 ERROR Error: MatDatepicker: No provider found for DateAdapter。

对我有用的是在 MyModule 和 AppModule 中导入上面的模块 and 同时注册 MatDatepickerModule 作为 MyModule 中的提供者。