Exploring Angular 2: Incorporating multiple HTML pages into a single component

Question

Exploring Angular 2: Incorporating multiple HTML pages into a single component

I am currently learning Angular 2 and have a component called Register. Within this single component, I have five different HTML pages. Is it possible to have multiple templates per component in order to navigate between these pages? How can I implement routing while keeping each page's HTML and SCSS separate? That is my main goal.

Right now, I am using ngIf to render the pages, but this has made my code quite lengthy. Are there any alternative approaches to achieve the same functionality?

<!--View 1-->
        <div class="open-card-BG" *ngIf="registerView=='regView1'">
Register Page 1
</div>
            <!--View 2-->
            <div class="open-card-BG" *ngIf="registrationView=='regView2'">
Register Page 2
</div>


    @Component({
      selector: 'register-page',
      templateUrl: './register-page.component.html',
      styleUrls: ['./register-page.component.scss'],
      providers : [RegisterService,Configuration,LocalStorageService]
    })
        ngOnInit() {
        this.registerView= "regView1";
      }

    changeView(view) {

          this.registerView= view;
      }

      previousView(view) {

          this.registerView= view;
      }

angular typescript angular2-routing angular2-template

Answer 1

Answer №1

Here is a suggested code snippet:

@Component({
    selector: 'register-page',
    template: `
            <div class="open-card-BG" *ngIf="registerView == 'regView1'">Reg View 1 Content</div>
            <div class="open-card-BG" *ngIf="registerView == 'regView2'">Reg View 2 Content</div>
            `,
    styleUrls: ['./register-page.component.scss'],
    providers: [RegisterService, Configuration, LocalStorageService]
})

export class Appcomponent {
    registerView = 'regView1';
}

Alternatively, you can try this approach:

page1.component.html

<div>
    <h1>Page1 Component Content</h1>
</div>

page2.component.html

<div>
    <h1>Page2 Component Content</h1>
</div>

home.component.html

<div>
    <div class="open-card-BG" *ngIf="registerView == 'regView1'">
         <app-page1-component></app-page1-component>
    </div>
    <div class="open-card-BG" *ngIf="registerView == 'regView2'">
         <app-page2-component></app-page2-component>
    </div>
</div>

component.ts

@Component({
    selector: 'app-home',
    templateUrl: './home.component.html',
    styleUrls: ['./home.component.css']
})

export class HomeComponent {
    registerView = 'regView1';
}

Answer 2

Here is a suggested code snippet:

@Component({
    selector: 'register-page',
    template: `
            <div class="open-card-BG" *ngIf="registerView == 'regView1'">Reg View 1 Content</div>
            <div class="open-card-BG" *ngIf="registerView == 'regView2'">Reg View 2 Content</div>
            `,
    styleUrls: ['./register-page.component.scss'],
    providers: [RegisterService, Configuration, LocalStorageService]
})

export class Appcomponent {
    registerView = 'regView1';
}

Alternatively, you can try this approach:

page1.component.html

<div>
    <h1>Page1 Component Content</h1>
</div>

page2.component.html

<div>
    <h1>Page2 Component Content</h1>
</div>

home.component.html

<div>
    <div class="open-card-BG" *ngIf="registerView == 'regView1'">
         <app-page1-component></app-page1-component>
    </div>
    <div class="open-card-BG" *ngIf="registerView == 'regView2'">
         <app-page2-component></app-page2-component>
    </div>
</div>

component.ts

@Component({
    selector: 'app-home',
    templateUrl: './home.component.html',
    styleUrls: ['./home.component.css']
})

export class HomeComponent {
    registerView = 'regView1';
}

Answer 3

Answer №2

To handle this situation, consider using *ngIf as it is the most practical approach. When you find yourself relying heavily on *ngIf to manage large sections of HTML, it may be a sign that these elements should actually be separated into distinct components due to their differing visual requirements.

If you notice common functionality across your .ts files, creating a base class with shared logic and then utilizing class inheritance in your individual components can help streamline your code organization.

export class BaseComponentLogic implements OnInit {

    ...

}

@Component({...})
export class MyFirstComponent extends BaseComponentLogic implements OnInit {

   ...
}

@Component({...})
export class MySecondComponent extends BaseComponentLogic implements OnInit {

   ...
}

Answer 4

To handle this situation, consider using *ngIf as it is the most practical approach. When you find yourself relying heavily on *ngIf to manage large sections of HTML, it may be a sign that these elements should actually be separated into distinct components due to their differing visual requirements.

If you notice common functionality across your .ts files, creating a base class with shared logic and then utilizing class inheritance in your individual components can help streamline your code organization.

export class BaseComponentLogic implements OnInit {

    ...

}

@Component({...})
export class MyFirstComponent extends BaseComponentLogic implements OnInit {

   ...
}

@Component({...})
export class MySecondComponent extends BaseComponentLogic implements OnInit {

   ...
}

Answer 5

Answer №3

When working with Angular, components represent a specific area of the interface and should have a single template associated with them. However, if you need to have multiple templates for a single component class, it is not considered standard practice in component definition. In such cases, you can create a base class and then extend this base class to create 3 separate components.

Answer 6

When working with Angular, components represent a specific area of the interface and should have a single template associated with them. However, if you need to have multiple templates for a single component class, it is not considered standard practice in component definition. In such cases, you can create a base class and then extend this base class to create 3 separate components.

Answer 7

Answer №4

To simplify your component logic and display them on a single HTML file using the ngIf directive instead of multiple HTML files, you can follow these steps:

 import { Component, OnInit } from '@angular/core';
 import {Router, ActivatedRoute, Params} from '@angular/router';
 
 @Component({
   selector: 'app-registration',
   templateUrl: './registration.component.html',
   styleUrls: ['./registration.component.css']
 })
 export class RegistrationComponent implements OnInit {
 
   constructor(private activatedRoute: ActivatedRoute) { }
 
   abcde:string='';
 
   ngOnInit(): void {
     //fetch query string and set value of variable
     this.activatedRoute.queryParams.subscribe(params => {
         this.abcde=params['xyz'];
     });
   }
 }

In the HTML file, use the following ngIf directives:

<div *ngIf="abcde=='1'"> your content for case 1 </div>
<div *ngIf="abcde=='2'"> your content for case 2 </div>
<div *ngIf="abcde=='3'"> your content for case 3 </div>

Answer 8

To simplify your component logic and display them on a single HTML file using the ngIf directive instead of multiple HTML files, you can follow these steps:

 import { Component, OnInit } from '@angular/core';
 import {Router, ActivatedRoute, Params} from '@angular/router';
 
 @Component({
   selector: 'app-registration',
   templateUrl: './registration.component.html',
   styleUrls: ['./registration.component.css']
 })
 export class RegistrationComponent implements OnInit {
 
   constructor(private activatedRoute: ActivatedRoute) { }
 
   abcde:string='';
 
   ngOnInit(): void {
     //fetch query string and set value of variable
     this.activatedRoute.queryParams.subscribe(params => {
         this.abcde=params['xyz'];
     });
   }
 }

In the HTML file, use the following ngIf directives:

<div *ngIf="abcde=='1'"> your content for case 1 </div>
<div *ngIf="abcde=='2'"> your content for case 2 </div>
<div *ngIf="abcde=='3'"> your content for case 3 </div>

Exploring Angular 2: Incorporating multiple HTML pages into a single component

Answer №1

Answer №2

Answer №3

Answer №4

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