I'm running the Angular 2 beta.0 and I'm messing around with routing. Here's what I have
AppComponent:
import {Component, provide} from 'angular2/core';
import {bootstrap} from 'angular2/platform/browser';
import {FORM_DIRECTIVES, CORE_DIRECTIVES} from 'angular2/common';
import {Http, Response, HTTP_PROVIDERS} from 'angular2/http';
import {RouteConfig, Location, LocationStrategy, HashLocationStrategy, ROUTER_DIRECTIVES, ROUTER_PROVIDERS} from 'angular2/router';
import {HomeComponent} from './components/home';
import {RowsComponent} from './components/rows';
import {ColumnsComponent} from './components/columns';
import {TableComponent} from './components/table';
#Component({
selector: 'app',
directives: [FORM_DIRECTIVES, CORE_DIRECTIVES, ROUTER_DIRECTIVES],
templateUrl: '/app/views/root.html',
providers: [ROUTER_PROVIDERS]
})
#RouteConfig([
{path:'/', name: 'Home', component: HomeComponent},
{path:'Rows', name: 'Rows', component: RowsComponent},
{path:'Columns', name: 'Columns', component: ColumnsComponent},
{path:'Table', name: 'Table', component: TableComponent}
])
class AppComponent {
public title = 'Responsive Layout';
public SelectedTab = 'Home';
constructor(location: Location) {
//location.go('Rows');
}
}
bootstrap(AppComponent, [
ROUTER_PROVIDERS,
provide(LocationStrategy, {useClass: HashLocationStrategy})
]);
Every tutorial and API reference seems to point to me doing it just like I have above. I also have <base href="/app/" /> in the head of my index.html. Here are my RouterLinks
<ul class="nav navbar-nav">
<li [class.active]="SelectedTab=='Home'"><a [routerLink]="['Home']" (click)="SelectedTab='Home'">Home</a></li>
<li [class.active]="SelectedTab=='Rows'"><a [routerLink]="['Rows']" (click)="SelectedTab='Rows'">Rows</a></li>
<li [class.active]="SelectedTab=='Columns'"><a [routerLink]="['Columns']" (click)="SelectedTab='Columns'">Columns</a></li>
<li [class.active]="SelectedTab=='Table'"><a [routerLink]="['Table']" (click)="SelectedTab='Table'">Table</a></li>
</ul>
The routing behaves like it should. I get no errors. When I click on one of these entries in the bootstrap nav-bar I see that the views have switched out and are showing the proper templates and that their Components have run and are being bound to. However, despite using HashLocationStrategy in my bootstrap(...) call, the URLs are still "HTML5 Style": localhost:8080/app/Rows when it should be localhost:8080/app/#/Rows.
I believe I need to use the old # based way if I want my users to be able to bookmark a particular view and come back to it. If I allow for /app/Rows then refreshing the page causes a 404 because Rows doesn't exist in the app folder.
I tried your code, it works
my code below:
boot.ts
import {bootstrap} from 'angular2/platform/browser'
import {provide} from 'angular2/core';
import {AppComponent} from './app.component'
import {ROUTER_PROVIDERS, LocationStrategy,
HashLocationStrategy,
PathLocationStrategy,
APP_BASE_HREF, } from 'angular2/router'
bootstrap(AppComponent,[
ROUTER_PROVIDERS,
provide(APP_BASE_HREF, { useValue: '/' }),
provide(LocationStrategy, {useClass : HashLocationStrategy})
]);
-
app.ts
import {Component} from 'angular2/core';
import {RouteConfig, ROUTER_DIRECTIVES} from 'angular2/router';
#Component({
selector:'second',
template: `<h1>second</h1>`
})
export class SecondComponent{}
#Component({
selector: 'home',
template: `<h1>hello</h1>`
})
export class HomeComponent{}
#Component({
directives : [ROUTER_DIRECTIVES],
selector: 'my-app',
template:
`<a [routerLink]="['Home']">home</a>
<a [routerLink]="['Second']">Second</a>
<router-outlet></router-outlet>
`
})
#RouteConfig([
{path :'/' ,name: 'Home', component: HomeComponent},
{path :'/second', name : 'Second', component : SecondComponent}
])
export class AppComponent { }
I find your problem, delete this line
providers : [ROUTER_PROVIDERS]
the details I don't know why, maybe angular can't not process when you are using ROUTERPROVIDERS twice, looking forward someone can help u
As per Angular 2 final release you have to include LocationStrategy to use HashLocationStrategy class by putting it inside providers of main #NgModule
by doing {provide: LocationStrategy, useClass: HashLocationStrategy}
app.module.ts
import {Component, NgModule} from '#angular/core';
import {
LocationStrategy,
HashLocationStrategy
} from '#angular/common';
#NgModule({
imports: [...], //put module to import here
declarations: [...], //put all component, pipe & directive
exports: [...], //module to export
//providers should reside here
providers: [{provide: LocationStrategy, useClass: HashLocationStrategy}]
})
class AppModule {}
Related
I am following getting started guide https://ng-bootstrap.github.io/#/getting-started. trying the basic alert to work. it display the alert message not the style with bootstrap style sheet.
Any idea what I am missing here?
app.module.ts
import { BrowserModule } from '#angular/platform-browser';
import { NgModule } from '#angular/core';
import { AppComponent } from './app.component';
import { NgbModule } from '#ng-bootstrap/ng-bootstrap';
#NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,NgbModule.forRoot(),
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
app.component.ts
import { Component } from '#angular/core';
#Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
title = 'app';
}
app.component.html
<div style="text-align:center">
<h1>
Welcome to {{ title }}!
</h1>
<p>
<ngb-alert [dismissible]="false">
<strong>Warning!</strong> Better check yourself, you're not looking too good.
</ngb-alert>
</p>
ng-bootstrap is only adding the functionality of the features, it's not adding actual styles. What you need to do is add the Bootstrap CSS as a dependency.
I created this StackBlitz with an example. In the external resources, I added the minified CSS URL and now the correct styling shows inside the application.
https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css
I am fairly new to Angular 2 and having a problem with Routing. I have just started to explore the Routing. I will explain the structure and what I have achieved so far,
app.router.ts
import { ModuleWithProviders } from '#angular/core'
import { Routes, RouterModule } from '#angular/router'
import { AppComponent } from './app.component';
import { LoginComponent } from "../app/login/login.component"
export const router: Routes = [
{ path: '', component: LoginComponent },
{ path: 'login', component: LoginComponent },
{ path: 'dashboard', component: AppComponent }
];
export const routes: ModuleWithProviders = RouterModule.forRoot(router);
app.module.ts
import { NgModule } from '#angular/core';
import { BrowserModule } from '#angular/platform-browser';
import { FormsModule } from '#angular/forms';
import { HttpModule } from '#angular/http';
import {UiSwitchModule} from 'angular2-ui-switch'
import { AppComponent } from './app.component';
import { AllReportsComponent } from "../app/all-reports/all-reports.component"
import { AvailableReportsComponent } from "../app/available-reports/available-reports.component"
import { NextReportsComponent } from "../app/next-reports/next-reports.component"
import { UrlsComponent } from "../app/urls/urls.component"
import { LoginComponent } from "../app/login/login.component"
import { TaskApi } from "../app/api/TaskApi"
import { routes } from "../app/app.router"
#NgModule({
imports: [
BrowserModule,
FormsModule,
UiSwitchModule,
HttpModule,
routes
],
declarations: [
AppComponent,
AllReportsComponent,
AvailableReportsComponent,
NextReportsComponent,
UrlsComponent,
LoginComponent
],
bootstrap: [AppComponent]
})
export class AppModule {
}
app.html
<div>
<all-reports></all-reports>
<available-reports></available-reports>
<next-reports></next-reports>
<urls></urls>
</div>
app.component.ts (very simple)
import { Component } from "#angular/core"
#Component({
templateUrl: '../app/app.html'
})
export class AppComponent {
}
and login.component.ts
import { Component } from '#angular/core';
import { TaskApi } from '../api/TaskApi';
import * as models from '../model/models';
#Component({
styleUrls: ['/app/css/login.css'],
templateUrl: '../../app/login/login.html',
providers: [TaskApi]
})
export class LoginComponent {
}
Now it can be seen that I am using multiple directives on app.html and all the respective components are working fine.
The problem I am facing is when I introduce Routing then I am able to understand where to use "router-outlet". I have used it on Index.html but it does not work and gives error about ng-component. So to just test around I have used following in Index.html,
<body>
<base href="/">
<ng-component></ng-component>
</body>
After I do this then my AppComponent is displayed by default where the LoginComponent should be displayed by default. On console, It also gives me error "Error: Cannot find primary outlet to load 'LoginComponent'"
Kindly guide me if I am using 4 directives on App.html as mentioned above then in that case how the routing will work. To summarize, I want to display Login page on localhost:3009/login and localhost:3009 and I want to display Home page (app.html) in localhost:3009/dashboard and app.html is using 4 directives to display 4 child components on it.
Angular Routing
Since Angular is single page application the routing functionality
helps to display different view in single page.
How to use router to change view?
since app.component.html is main view for most user. Iam also consider app.component.html as main view.
Router-outlet
Router-outer helps to load the change in our angular application.
app.component.html
<router-outlet></router-outlet>
Set AppComponent Default page as router-outlet and create new Dashboard.component.html in your main view.
router.ts
import { ModuleWithProviders } from '#angular/core'
import { Routes, RouterModule } from '#angular/router'
import { AppComponent } from './app.component';
import { DashboardComponent } from './dashboard.component';
import { LoginComponent } from "../app/login/login.component"
export const router: Routes = [
{ path: '', component: LoginComponent },
{ path: 'login', redirectTo: '', pathMatch: 'full' },
{ path: 'dashboard', component: DashboardComponent }
];
export const routes: ModuleWithProviders = RouterModule.forRoot(router);
The problem with your code is that there is no 'router-outlet', so angular doesn't understand where to display the view.
The 'router-outlet' directive marks where the router displays a view.
In your code, since in app.component.ts you are using app.html so you should use <router-outlet> </router-outlet> in that HTML file.
Your app.html file should look like this:
<router-outlet> </router-outlet>
These below things should not be used in the app component HTML file. They should be used in their the corresponding components.
<all-reports></all-reports>
<available-reports></available-reports>
<next-reports></next-reports>
<urls></urls>
For further understanding, please refer to the official documentation of Angular2. They have explained it pretty well here https://angular.io/docs/ts/latest/guide/router.html
I have a simple routing module, and then a template where I have links.
- The first link doesn't display as a clickable link, it shows as static text.
The second shows as link, only because of the href. Is this required?
app-routing.module.ts:
import {NgModule} from '#angular/core';
import {RouterModule, Routes} from '#angular/router';
import {AppComponent} from "./app.component";
import {ListComponent} from "./list/list.component"
const appRoutes: Routes = [
{path: 'List', component: ListComponent},
{path: 'Home', component: AppComponent}
];
#NgModule({
imports: [
RouterModule.forRoot(appRoutes)
],
exports: [
RouterModule
]
})
export class AppRoutingModule {}
app.component.ts
import { Component } from '#angular/core';
import {RouterModule} from '#angular/router';
import { AppRoutingModule } from './app-routing.module';
#Component({
moduleId: module.id,
selector: 'my-app',
templateUrl: './app.component.html'
})
export class AppComponent {
}
app.component.html
<a routerLink="/List" routerLinkActive="active">List</a> |
List
<router-outlet></router-outlet>
First of all the href is not required and the second one it should be routerLink not routerlink.
Try using lower caps in your links
Why would you need both links to point to the same thing
I am getting this runtime error with my routing when upgrading to RC6 (this includes child routes):
ListingComponent is not part of any NgModule or the module has not
been imported into your module
This error indicates that I have not added ListingComponent to ngModule but it is there as a declaration.
In app.module I have all my components as declarations. I also import my routing component. The routing component has a sub routing component called listing.routes.
Here is my app.module.ts:
import {NgModule, CUSTOM_ELEMENTS_SCHEMA, ReflectiveInjector } from '#angular/core';
import { BrowserModule } from '#angular/platform-browser';
import {FormsModule, FormBuilder} from '#angular/forms';
import { NgClass, NgStyle} from '#angular/common';
import { AppComponent } from './app.component';
import {routing} from './app.routes';
import {ListingModule} from './components/listing/listingmodule';
import {ListingComponent} from './components/listing/listing.Component';
#NgModule({
imports: [BrowserModule, routing],
providers: [],
declarations: [AppComponent, ListingComponent, ListingModule],
bootstrap: [AppComponent]
})
export class AppModule {
}
Here is my app.routes.ts (which I import as routes):
import { ModuleWithProviders } from '#angular/core';
import { Routes, RouterModule } from '#angular/router';
import {ListingRoutes} from './components/listing/listing.routes';
import {SplashComponent} from './components/splash/splash.component';
export const appRoutingProviders: Routes = ([
{ path: '', component: SplashComponent },
{ path: 'login', component: SplashComponent },
...ListingRoutes
]);
export const routing: ModuleWithProviders = RouterModule.forRoot(appRoutingProviders);
And here is my listing.routes.ts:
import { ModuleWithProviders } from '#angular/core';
import { Routes, RouterModule } from '#angular/router';
import {ListingModule} from './repairreturnmodule';
import {ListingComponent} from '../listing/listing.component';
export const ListingRoutes: Routes = [
{
path: '',
component: ListingModule,
children: [
{ path: 'listing', component: ListingComponent},
]
}
];
export const ListingRouting: ModuleWithProviders = RouterModule.forChild(ListingRoutes);
Have I missed anything?
EDIT: you are importing your ListingComponent from
import {ListingComponent} from './components/listing/listing.Component';
if you using the same convention from the AppComponent (which you should) you should import from
import {ListingComponent} from './components/listing/listing.component';
See what is the name of the file. The rest of the code looks right.
I'm not sure if this is the source of the problem, but you are declaring a module there in the AppModule, when you should be importing it...
Try moving the ListingModule from declarations array to the imports array.
How to manage nested link in angular2.
for eg. I have two file :
app.component.ts
import { Component, forwardRef } from 'angular2/core';
import { RouteConfig, ROUTER_DIRECTIVES, ROUTER_PROVIDERS } from 'angular2/router';
import {HTTP_PROVIDERS} from 'angular2/http';
import 'rxjs/Rx';
import { HeroService } from './hero.service';
import { DashboardComponent } from './dashboard.component';
import { HeroesComponent } from './heroes.component';
import { TestComponent } from './test.component';
import { HeroDetailComponent } from './hero-detail.component';
import { LinkComponent } from './link.ts'
#Component({
selector: 'my-app',
template: `
<h1>{{title}}</h1>
<link111></link111>
<router-outlet></router-outlet>
`,
styleUrls: ['app/app.component.css'],
directives: [ROUTER_DIRECTIVES, forwardRef(() => LinkComponent)],
providers: [
HTTP_PROVIDERS,
ROUTER_PROVIDERS,
HeroService
]
})
#RouteConfig([
{
path: '/dashboard',
name: 'Dashboard',
component: DashboardComponent,
useAsDefault: true
},
{
path: '/detail/:id',
name: 'HeroDetail',
component: HeroDetailComponent
},
{
path: '/heroes',
name: 'Heroes',
component: HeroesComponent
},
{
path: '/test',
name: 'Test',
component: TestComponent
}
])
export class AppComponent {
title = 'Tour of Heroes';
}
link.ts
import {Component} from 'angular2/core';
import { ROUTER_DIRECTIVES, ROUTER_PROVIDERS } from 'angular2/router';
#Component({
selector:'link111',
template:`
<nav>
<a [routerLink]="['Dashboard']">Dashboard</a>
<a [routerLink]="['Heroes']">Heroes</a>
<a [routerLink]="['Test']">Test</a>
</nav>
`,
directives: [ROUTER_DIRECTIVES],
providers: [ROUTER_PROVIDERS]
})
export class LinkComponent {
}
When [routerLink] define in app.component.ts in place of link111 tag it works, but when i separate it into different file it doesn't work.
please help me, Thanks.
When [routerLink] define in app.component.ts in place of link111 tag it works, because angular look routing from the
main root file(that is app.ts in your case), but when you separate it into different file it doesn't work because
than routing is defined in the root file but you are calling from childern (i.e not from parent). so to resolve this
change this like this -
<a [routerLink]="['./Dashboard']">Dashboard</a>
<a [routerLink]="['./Heroes']">Heroes</a>
<a [routerLink]="['./Test']">Test</a>
because If the route begins with ./, the router will look up the current components childern route from the root of the app.
From officials -
The first route name should be prepended with /, ./, or ../. If the route begins with /, the router will look up the route from the root of the app. If the route begins with ./, the router will instead look in the current component's children for the route. And if the route begins with ../, the router will look at the current component's parent.
for more info refer this -
https://angular.io/docs/ts/latest/api/router/RouterLink-directive.html
How to use child routes in Angular 2.
Angular 2 router examples + #RouteConfig typing support