我已经建立了用户列表,并用来自这个来源( https://jsonplaceholder.typicode.com/posts)的相关数据填充了它。我显示了“标题”和“正文”。然后我在每个用户的标题旁边制作了“编辑”按钮,所以无论何时单击它,都会打开两个输入字段(“标题”和“正文”)。现在我想用我上面提到的源的默认数据填充这两个输入字段。另外,如果有人使用输入更改文本,则应更改数据。我试图这样做,但它不起作用。
这是HTML文件:
<div class="forms container">
<form #postForm="ngForm">
<div class="form-group">
<label for="title">Title</label>
<input [(ngModel)]="title"
name="title"
id="title"
type="text"
class="form-control"
>
</div>
<div class="form-group">
<label for="body">Body</label>
<textarea [(ngModel)]="body" id="body" cols="30" rows="10"
class="form-control"
></textarea>
</div>
<button class="btn btn-success">Submit</button>
</form>
</div>
这是我的 component.ts 文件:
import { Component, OnInit } from '@angular/core';
import { PostService } from 'src/app/shared/posts.service';
import { ActivatedRoute } from '@angular/router';
@Component({
selector: 'app-forms',
templateUrl: './forms.component.html',
styleUrls: ['./forms.component.css']
})
export class FormsComponent implements OnInit {
posts: any;
constructor(private postService: PostService ,private route: ActivatedRoute) { }
ngOnInit() {
this.postService.getPosts().subscribe(
(posts: any) => this.posts = posts
);
}
}
这是我的 PostService:
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
@Injectable({
providedIn: 'root'
})
export class PostService {
constructor(private http: HttpClient) { }
getPosts() {
return this.http.get('https://jsonplaceholder.typicode.com/posts')
}
}