Question

我有一个自动完成字段，当我按下ENTER键时，它会检索数据库中的数据。但只有当我输入其他字符时，面板才会打开... 加载数据时，为了打开面板，我必须更改/添加什么？这是我的组件HTML：

<mat-form-field class="index-full-width">
                        <input
                          matInput
                          type="text"
                          [(ngModel)]="patientChoice"
                          placeholder="Patient"
                          aria-label="Patient"
                          [matAutocomplete]="autoPatient"
                          [formControl]="myControl"
                          (keyup.enter)="getPatients($event)"
                        >
                        <mat-autocomplete (optionSelected)="selectPat()" #autoPatient="matAutocomplete" [displayWith]="displayFnPat">
                          <mat-option *ngFor="let patient of filteredPatients | async" [value]="patient">
                            <span>{{ patient.lastName }}</span>
                            <small>{{patient.firstName}}</small> |
                            <span>né(e) le {{ patient.dateNaissance }}</span> |
                            <small>IPP: {{patient.ipp}}</small>
                          </mat-option>
                        </mat-autocomplete>
                      </mat-form-field>

组件TS文件：

  getPatients(event: any) {
    let searchTerm = '';
    searchTerm += event.target.value;
    console.log(searchTerm);
    let success: any = {};
    this.klinckServices.getPatients(searchTerm)
      .then((webScriptdata) => {
          success = webScriptdata;
          this.listPatients = success.data.items;
          console.log(this.listPatients);
          this.isResult = true;
          console.log(this.autoCompleteInputAutoPatient);
          // this.autoCompleteInputAutoPatient.openPanel();
        },
        msg => {
          alert(msg);
        });
  }

角度材质文档显示了不同的函数和属性，如showPanel或isOpen，但我不了解如何使用它： https://material.angular.io/components/autocomplete/api

更新：阅读这篇文章后How do you call closePanel in angular 4 autoComplete material 我更新了我的HTML组件：

<mat-form-field class="index-full-width">
                        <input #autoCompletePatientInput
                          matInput
                          type="text"
                          [(ngModel)]="patientChoice"
                          placeholder="Patient"
                          aria-label="Patient"
                          [matAutocomplete]="autoPatient"
                          [formControl]="myControl"
                          (keyup.enter)="getPatients($event)"
                        >
                        <mat-autocomplete #autoCompletePatient (optionSelected)="selectPat()" #autoPatient="matAutocomplete" [displayWith]="displayFnPat">
                          <mat-option *ngFor="let patient of filteredPatients | async" [value]="patient">
                            <span>{{ patient.lastName }}</span>
                            <small>{{patient.firstName}}</small> |
                            <span>né(e) le {{ patient.dateNaissance }}</span> |
                            <small>IPP: {{patient.ipp}}</small>
                          </mat-option>
                        </mat-autocomplete>
                      </mat-form-field>

这就是我在TS组件中添加的内容：

 @ViewChild('autoCompletePatientInput', { read: MatAutocompleteTrigger} ) autoCompletePatient: MatAutocompleteTrigger;
...
  getPatients(event: any) {
    console.log(this.autoCompletePatient);
    this.autoCompletePatient.openPanel();
    let searchTerm = '';
    searchTerm += event.target.value;
    console.log(searchTerm);
    let success: any = {};
    this.klinckServices.getPatients(searchTerm)
      .then((webScriptdata) => {
          success = webScriptdata;
          this.listPatients = success.data.items;
          console.log(this.listPatients);
          this.isResult = true;
        },
        msg => {
          alert(msg);
        });
  }

但没有任何改变

角度材质自动完成 - 在ENTER后打开面板

0 个答案: