我的表单有3个步骤,用户需要一次查看一个步骤,并且是否有效比移动下一步等等。
因此,请尝试使用路由器和懒惰负载组件
最初的页面加载自动
http://localhost:8080/init/first
但是,当我单击第一个组件HTML页面的下一个按钮时。
所需的行为:仅将第二个组件加载到页面上。
实际行为:第二个组件html加载,在HTML第一个组件HTML的下方也可见。
现在,当我们单击第二个组件上的下一个按钮时,所有3个组件的HTML在同一页面上可见,这不是所需的输出。
以下是相关的代码。
init.module.ts
import { InitRoutes } from './init.routing';
import { FirstComponent } from './first/first.component';
import { SecondComponent } from './second/second.component';
import { ThirdComponent } from './third/third.component';
import { SummaryComponent } from './summary/summary.component';
@NgModule({
imports: [
CommonModule,
RouterModule.forChild(InitRoutes),
FormsModule,
ReactiveFormsModule,
],
declarations: [
FirstComponent,
SecondComponent,
ThirdComponent,
SummaryComponent,
],
})
export class InitModule { }
init.routing.ts
import { Routes } from '@angular/router';
export const InitRoutes: Routes = [
{
path: '',
children: [
{
path: 'first',
component: FirstComponent,
data: { step: 1 }
},
{
path: 'second',
component: SecondComponent,
data: { step: 2 }
},
{
path: 'third',
component: ThirdComponent,
data: { step: 3 }
},
{
path: 'summary',
component: SummaryComponent,
},
{
path: '',
redirectTo: 'first',
pathMatch: 'full'
},
{
path: '**',
component: FirstComponent
}
]
}
];
app.Routing.ts
export const AppRoutes: Routes = [
{
path: '',
component: InitLayoutComponent,
children: [
{
path: '',
redirectTo: 'init',
pathMatch: 'full'
}, {
path: 'init',
loadChildren: './init/init.module#InitModule'
}]
}, ...]
init-layout.component.ts
import { Component } from '@angular/core';
@Component({
selector: 'app-layout',
templateUrl: './init-layout.component.html',
styleUrls: ['./init-layout.component.less']
})
export class InitLayoutComponent { }
init-layout.component.html
<div >
<figure>
<img class="logo" src="assets/images/logo.png" alt="logo">
<figcaption class="f-18 font__normal--semibold"> Initialization Wizard </figcaption>
</figure>
<div class="card">
<!-- Nested view -->
<router-outlet></router-outlet>
</div>
</div>
first.component.ts
import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormGroup, Validators, FormControl } from '@angular/forms';
import { Router, Route, ActivatedRoute } from '@angular/router';
@Component({
selector: 'app-first',
templateUrl: './first.component.html',
})
export class FirstComponent implements OnInit {
public firstForm: FormGroup;
step: number;
constructor(private fb: FormBuilder, private router: Router, private route: ActivatedRoute) {
this.buildForm();
}
ngOnInit() {
this.route.data.subscribe((data) => {
this.step = data.step;
});
}
next() {
console.log('click on next ', this.step, this.route.outlet);
//this.router.navigate(['/init/second']); this also dows not works
this.router.navigate(['second'], { relativeTo: this.route.parent, skipLocationChange: true });
}
private buildForm() {
this.firstForm = this.fb.group({
licenseKey: [null, <any>Validators.required]
});
}
}
有什么问题?我也尝试了出口参数,但没有成功
版本详细信息
"@angular/animations": "^4.0.0",
"@angular/common": "^4.0.0",
"@angular/compiler": "^4.0.0",
"@angular/core": "^4.3.4",
"@angular/forms": "^4.0.0",
"@angular/http": "^4.0.0",
"@angular/platform-browser": "^4.0.0",
"@angular/platform-browser-dynamic": "^4.0.0",
"@angular/router": "^4.0.0",
解决了问题。
实际上,所有组件的HTML都必须具有正确的形式结构。
我的页面之一具有反应性形式,但语法无效。这就是为什么它给出意外的输出