[英]How can I load whole component in Angular?
在下面显示的示例中,当我单击“ Log in
整个login component
正在加载。 但是,当我单击I don't have an account
时,我I don't have an account
得到类似的信息 但是我想要这个:
有什么想法可以实现吗?
我的源代码:
login.component.html:
<div class="col-md-6 col-md-offset-3">
<form *ngIf="!authenticated" name="form" (ngSubmit)="f.form.valid && login()" #f="ngForm" novalidate>
<div class="form-group" [ngClass]="{ 'has-error': f.submitted && !username.valid }">
<label for="username">Username</label>
<input type="text" class="form-control" name="username" [(ngModel)]="model.username" #username="ngModel" required />
<div *ngIf="f.submitted && !username.valid" class="help-block">Username is required</div>
</div>
<div class="form-group" [ngClass]="{ 'has-error': f.submitted && !password.valid }">
<label for="password">Password</label>
<input type="password" class="form-control" name="password" [(ngModel)]="model.password" #password="ngModel" required />
<div *ngIf="f.submitted && !password.valid" class="help-block">Password is required</div>
</div>
<div class="form-group">
<button [disabled]="loading" class="btn btn-primary" >Log in</button>
<img *ngIf="loading" src="data:image/gif;base64,R0lGODlhEAAQAPIAAP///wAAAML" /></div>
<div><a (click)="showSignUp = true" class="btn btn-link">I don't have an account</a>
</div>
</form>
<app-registration *ngIf="showSignUp"></app-registration>
<home *ngIf="authenticated"></home>
</div>
login.component.ts:
import { Component, OnInit } from '@angular/core';
import { Router, ActivatedRoute } from '@angular/router';
import { AlertService, AuthenticationService } from '../services/index';
@Component({
moduleId: module.id,
templateUrl: 'login.component.html'
})
export class LoginComponent implements OnInit {
model: any = {};
loading = false;
authenticated: boolean = false;
showSignUp: boolean = false;
constructor(
private route: ActivatedRoute,
private router: Router,
private authenticationService: AuthenticationService,
private alertService: AlertService) { }
ngOnInit() {
// reset login status
this.authenticationService.logout();
}
login() {
this.loading = true;
this.authenticationService.login(this.model.username, this.model.password)
.subscribe(
data => {
this.authenticated = true;
},
error => {
this.authenticated = false;
this.alertService.error(error);
this.loading = false;
});
}
}
解决方案我按照以下方式解决了我的问题。 是正确完成还是不可接受,应该以其他方式完成?
<div class="col-md-6 col-md-offset-3">
<form *ngIf="!authenticated" name="form" (ngSubmit)="f.form.valid && login()" #f="ngForm" novalidate>
<div class="form-group" [ngClass]="{ 'has-error': f.submitted && !username.valid }">
<label for="username">Username</label>
<input type="text" class="form-control" name="username" [(ngModel)]="model.username" #username="ngModel" required />
<div *ngIf="f.submitted && !username.valid" class="help-block">Username is required</div>
</div>
<div class="form-group" [ngClass]="{ 'has-error': f.submitted && !password.valid }">
<label for="password">Password</label>
<input type="password" class="form-control" name="password" [(ngModel)]="model.password" #password="ngModel" required />
<div *ngIf="f.submitted && !password.valid" class="help-block">Password is required</div>
</div>
<div class="form-group">
<button [disabled]="loading" class="btn btn-primary" >Log in</button>
<img *ngIf="loading" src="data:image/gif;base64,R0lGODlhEAAQAPIAAP///B1YhiCnlsRkAAAOwAAAAAAAAAAAA==" /></div>
<div><a [routerLink]="['/registration']" skipLocationChange class="btn btn-link">I don't have an account.
</a>
</div>
</form>
<home *ngIf="authenticated"></home>
<app-registration *ngIf="showSignUp"></app-registration>
</div>
而不是包括
<app-registration *ngIf="showSignUp"></app-registration>
在login.html中
进行漫游,例如:
<div><a [routerLink]="['/register']" skipLocationChange class="btn btn-link">I don't have an account</a>
添加skipLocationChange将使网址保持不变
您需要使用其他标志来管理登录表单,或者需要将authenticated = false设置为showSignUp = true。 最好为每个功能创建单独的组件,而不是使用ng-if。
<login>login form</login> <dashboard>Once user login</dashboard> <registration>to display registration works message<registration> So when you click "I don't have an account" open registration component using routes. Its the right approach when you use angular 2.
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