Angular Material Expansion面板单击事件

<mat-expansion-panel (opened)="panelOpenState = true" (closed)="panelOpenState = false" (click)="getPrimaryAddress()">
  <mat-expansion-panel-header>
    <mat-panel-title>
      Primay Address
    </mat-panel-title>
    <mat-panel-description>
      {{panelOpenState ? 'Hide' : 'Display'}} Address
    </mat-panel-description>
  </mat-expansion-panel-header>
  <div>
    <mat-form-field class="example-form-field" style="margin-top: 20px;">
      <input matInput type="text" placeholder="Street 1" [(ngModel)]="streetOneValue">
      <button mat-button *ngIf="streetOneValue " matSuffix mat-icon-button aria-label="Clear" (click)="streetOneValue=''">
                  <mat-icon>close</mat-icon>
                </button>
    </mat-form-field>

    <mat-form-field class="example-form-field" style="margin-top: 20px;">
      <input matInput type="text" placeholder="Street 2" [(ngModel)]="streetTwoValue">
      <button mat-button *ngIf="streetTwoValue " matSuffix mat-icon-button aria-label="Clear" (click)="streetTwoValue=''">
                  <mat-icon>close</mat-icon>
                </button>
    </mat-form-field>
  </div>
  <div>
    <mat-form-field class="example-form-field" style="margin-top: 20px;">
      <input matInput type="text" placeholder="Street 3" [(ngModel)]="streetThreeValue">
      <button mat-button *ngIf="streetThreeValue " matSuffix mat-icon-button aria-label="Clear" (click)="streetThreeValue=''">
                  <mat-icon>close</mat-icon>
                </button>
    </mat-form-field>
    <mat-form-field class="example-form-field" style="margin-top: 20px;">
      <input matInput type="text" placeholder="Street 2" [(ngModel)]="countyValue">
      <button mat-button *ngIf="countyValue " matSuffix mat-icon-button aria-label="Clear" (click)="countyValue=''">
                  <mat-icon>close</mat-icon>
                </button>
    </mat-form-field>
  </div>
  <div>
    <mat-form-field class="example-form-field" style="margin-top: 20px;">
      <input matInput type="text" placeholder="Post Code" [(ngModel)]="postcodeValue">
      <button mat-button *ngIf="postcodeValue " matSuffix mat-icon-button aria-label="Clear" (click)="postcodeValue=''">
                  <mat-icon>close</mat-icon>
                </button>
    </mat-form-field>

    <mat-form-field class="example-form-field" style="margin-top: 20px;">
      <input matInput type="text" placeholder="Country" [(ngModel)]="primaryAddresscountryValue">
      <button mat-button *ngIf="primaryAddresscountryValue " matSuffix mat-icon-button aria-label="Clear" (click)="primaryAddresscountryValue=''">
                  <mat-icon>close</mat-icon>
                </button>
    </mat-form-field>
  </div>
</mat-expansion-panel>

刚刚开始使用Angular Material并遇到了mat-expansion-panel问题 . 我的面板在展开时会显示一系列mat-form-field元素 .

我有几个点击事件，一个获取数据; （click）=“getPrimaryAddress（），其余的只是在选择X按钮后清除数据，例如（click）=”streetOneValue =''“

但是，当我单击X按钮清除特定值时，getPrimaryAddress（）事件再次触发，只是重新填充元素中的数据 . 无论如何，只要我选择其他点击事件，就会停止触发getPrimaryAddress（）函数？

我需要数据延迟加载，这就是我在点击事件而不是OnInit处理它的原因