我有一个基于mat-selection-list的选择列表,如下所示: https://stackblitz.com/edit/material-selection-list-5-0-0?file=app%2Fapp.component.ts 我想将我的选择提交为PostBody,我的后端端点希望postbody具有以下结构:
{
"taskTypeAreas": [
{
"name": "Area1"
},
{
"name": "Area2"
},
{
"name": "Area3"
}
]
}
在我的component.ts上,我像下面这样调用该服务:
submitNames() {
let Names = this.selectedOptions; // here i want to submit user selectons
this.myservice.nameService(Names).subscribe(res => {
console.log('Results' + JSON.stringify(res));
}
);
}
onNgModelChange(event){
console.log('on ng model change', event);
}
在模板中:
<mat-selection-list #list [(ngModel)]="selectedOptions" (ngModelChange)="onNgModelChange($event)">
<mat-list-option *ngFor="let tta of taskTypeAreas" [value]="tta.name">
{{tta.name}}
</mat-list-option>
</mat-selection-list>
<div>
<p Selection: {{ selectedOptions }}</p>
<button class="btn btn-default pull-right" (click)="submitNames()">Submit</button>
</div>
单击“提交”时,返回的响应是HTTP状态代码400(错误请求),并且请求有效负载如下所示:[“ Area1”],如何根据上述模式修改服务器要理解的PostBody? >