Arrays 无法将数据从服务分配到阵列
具有以下组件:Arrays 无法将数据从服务分配到阵列,arrays,angular,typescript,Arrays,Angular,Typescript,具有以下组件: import { Component, OnInit } from '@angular/core'; import { FormArray, FormControl, FormGroup, NgForm } from '@angular/forms'; import { ActivatedRoute } from '@angular/router'; import { CisvcService } from 'src/app/services/cisvc.service'; @
import { Component, OnInit } from '@angular/core';
import { FormArray, FormControl, FormGroup, NgForm } from '@angular/forms';
import { ActivatedRoute } from '@angular/router';
import { CisvcService } from 'src/app/services/cisvc.service';
@Component({
selector: 'app-cambio',
templateUrl: './cambio.component.html',
styleUrls: ['./cambio.component.css']
})
export class CambioComponent implements OnInit {
idproyecto: any;
tipos: any[] = [];
areas: any[] = [];
cbAreas: boolean[] = [];
constructor(private activatedRoute: ActivatedRoute, private svc: CisvcService ) {}
ngOnInit(): void {
this.activatedRoute.params.subscribe( params => {
this.idproyecto = params['id'];
});
this.svc.getTipos().subscribe( (data: any[]) => {
console.log(data);
this.tipos = data;
});
this.svc.getAreas().subscribe( (data: any[]) => {
this.areas = data;
});
console.log(this.areas);
console.log(this.tipos);
}
formSubmit( forma: NgForm ){
if (forma.invalid){
console.log('datos invalidos');
return;
}
}
}
我看到数据来自该服务,但没有任何关于阵列类型和区域的信息。
有谁能帮我了解一下是否有什么问题。那是因为您正在安慰您订阅之外的
tipos
和区域
您需要在订阅内部进行控制台操作以检查其值:
this.svc.getTipos().subscribe( (data: any[]) => {
this.tipos = data;
console.log(this.tipos); // Console here
});
this.svc.getAreas().subscribe( (data: any[]) => {
this.areas = data;
console.log(this.areas); // Console here
});
注意:
- 来自服务调用的订阅正在处理可观察到的内容,在您能够获取它们各自的响应之前,这些内容必须是
subscribe