我想在一个标签中设置两个值。例如,如果我打开下拉菜单,它应该显示为:
“值1 值2”
与空格连成一行。
value1
和 value2
数据正在从数据库中获取。我尝试使用以下方法,但没有成功。
<p-dropdown [options]="divitionArr" name="business_divition" [(ngModel)]="project.business_divition" optionLabel="{'first_name','last_name'}" optionValue="divition" #diviSel="ngModel"></p-dropdown>
建议将新字段
displayLabel
添加到用于 optionLabel
的数组元素中。接下来,您决定 displayLabel
所需的输出。
.组件.ts
ngOnInit() {
this.divitionArr = this.divitionArr.map((divition: any) => {
return {
...divition,
displayLabel: divition.first_name + ' ' + divition.last_name
};
});
}
.component.html
<p-dropdown
[options]="divitionArr"
name="business_divition"
[(ngModel)]="project.business_divition"
optionLabel="displayLabel"
optionValue="divition"
#diviSel="ngModel"
>
</p-dropdown>
尝试像这样使用
<ng-template>
:
<label for="operatingSystem">Operating System</label>
<p-dropdown id="operatingSystem" [options]="operatingSystems" [(ngModel)]="application.operatingSystem"
placeholder="Select an Operating System" [showClear]="true">
<ng-template let-operatingSystems pTemplate="item">
<div class="flex align-items-center operatingSystems-item">
<div>{{operatingSystems.name}} {{operatingSystems.version}}</div>
</div>
</ng-template>
</p-dropdown>