How to connect the form in angular routing - html

Question

i have added angular routing to my crud operation.. before without routing the data i added was able to display in the table but now after implementation of routing the data is not getting stored in the table
here is the code of createemployee.component.html
<h2>Add Employee:</h2>
<form class="form-horizontal" #empForm="ngForm">
<div class="form-group">
<label class="control-label col-sm-2" for="name">Name:</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="name" minlength="4" maxlength="10" pattern="^[A-Za-z0-9]*[A-Za-z0-9][A-Za-z0-9]\S*$" [(ngModel)]="model.name" placeholder="Enter Your Name"
#name="ngModel" required/>
<div *ngIf="name.invalid && (name.dirty || name.touched)" class="alert alert-danger">
<div *ngIf="name.errors.required">
Name is required.
</div>
<div *ngIf="name.errors.pattern">
No Spaces
</div>
<div *ngIf="name.errors.minlength">
Name must be at least 4 characters long.
</div>
</div>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="position">Position:</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="position" minlength="4" maxlength="10" pattern="^[a-z]*$" [(ngModel)]="model.position" placeholder="Enter your position"
#position="ngModel" required />
<div *ngIf="position.invalid && (position.dirty || position.touched)" class="alert alert-danger">
<div *ngIf="position.errors.required">
Position is required.
</div>
<div *ngIf="position.errors.pattern">
Only Alphabets are must be entered
</div>
<div *ngIf="position.errors.minlength">
Position must be at least 4 characters long.
</div>
</div>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="salary">Salary:</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="salary" pattern="[0-9]*"
minlength="5" maxlength="7" [(ngModel)]="model.salary" placeholder="Enter Salary" #salary="ngModel" required />
<div *ngIf="salary.invalid && (salary.dirty || salary.touched)" class="alert alert-danger">
<div *ngIf="salary.errors.required">
Salary is required.
</div>
<div *ngIf="salary.errors.minlength">
Salary must be in 5 numbers.
</div>
<div *ngIf="salary.errors.maxlength">
Salary must not be exceeded morethan 7 numbers.
</div>
<div *ngIf="salary.errors?.pattern">Only numebers should be typed
</div>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-default" routerLink="../viewemployee" [disabled]="empForm.invalid">Add Employee</button>
<button type="button" class="btn btn-default" routerLink="../home">Cancel</button>
</div>
</div>
</form>
createemployee.component.ts
import { Component, OnInit } from '#angular/core';
import { FormControl, FormGroup , Validators} from '#angular/forms';
import { FormsModule, ReactiveFormsModule } from '#angular/forms';
#Component({
selector: 'app-createemployee',
templateUrl: './createemployee.component.html',
styleUrls: ['./createemployee.component.css']
})
export class CreateemployeeComponent implements OnInit {
model: any = {};
model2: any = {};
add=false;
create=true;
ngOnInit() {
this.model = new FormGroup({
'name': new FormControl(this.model.name,
[Validators.required, Validators.minLength(4),]),
'position': new FormControl(this.model.position,
[Validators.required, Validators.minLength(4),]),
'salary': new FormControl(this.model.salary, Validators.required)
});
}
employees = [{name: "Sunil", position: "Developer", salary: 20000},
{name: "Vamshi", position: "Java Developer", salary: 30000},
{name: "Chethan", position: ".Net Developer", salary: 10000}];
createEmp(){
this.add=true;
this.create=false;
this.Show=false;
this.edit=false;
}
addEmployee() {
this.employees.push(this.model);
this.Show = true;
this.add = false;
this.model = {};
}
}
viewemployeecomponent.ts
<h2>Employee Details</h2>
<table class="table table-bordered">
<thead>
<tr>
<th width=400>Name</th>
<th width=400>Position</th>
<th width=200>Salary</th>
<th width=400>Actions</th>
</tr>
</thead>
<tbody>
<tr *ngFor="let employee of employees; let i=index">
<td>{{employee.name}}</td>
<td>{{employee.position}}</td>
<td>{{employee.salary}}</td>
<td>
<a class="btn btn-success" (click)="editEmployee(i)">Edit</a>
<a class="btn btn-danger" (click)="deleteEmployee(i)">Delete</a>
</td>
</tr>
</tbody>
</table>
app.router.ts
import { ModuleWithProviders } from '#angular/core';
import { Routes, RouterModule } from '#angular/router';
import { AppComponent } from './app.component';
import { HomeComponent } from './home/home.component';
import { CreateemployeeComponent } from './createemployee/createemployee.component';
import { ViewemployeeComponent } from './viewemployee/viewemployee.component';
import { UpdateemployeeComponent } from './updateemployee/updateemployee.component';
export const router: Routes = [
{ path: '',redirectTo: 'home',pathMatch: 'full'},
{ path: 'createemployee', component: CreateemployeeComponent },
{ path: 'updateemployee', component: UpdateemployeeComponent},
{ path: 'viewemployee', component: ViewemployeeComponent },
{ path: 'home', component: HomeComponent},
{ path: 'appcomponent', component: AppComponent}
];
export const routes: ModuleWithProviders = RouterModule.forRoot(router)
where did i have done the mistake.. i am trying to add the created employee into existing table with all other 3 hard coded employees

Answer 1

form what i ca see your problem is you're pushing a new employee in a component ..but you render the employee table in another and i see yours employee array is not from a service or from a #input() directive ...
so for example create a service like:
import { Injectable } from '#angular/core';
import { HttpClient } from '#angular/common/http';
import { Observable } from 'rxjs/Rx';
import { environment } from '../../../../environments/environment';
import { PraticheGridVM, PraticheDTO } from 'app/awards/shared/models';
#Injectable()
export class EmployeeService {
private employees = [{name: "Sunil", position: "Developer", salary: 20000},
{name: "Vamshi", position: "Java Developer", salary: 30000},
{name: "Chethan", position: ".Net Developer", salary: 10000}];
constructor(private http: HttpClient) { }
/**
* Get Pratiche Mese Paginate
* #param {PraticheGridVM} filter
* #returns {Promise<Array<PraticheDTO>>}
* #memberof PraticheService
*/
public GetEmployee(): Array<Employee> {
return this.employees;
}
/**
* Get Pratiche Trimestre Paginate
* #param {PraticheGridVM} filter
* #returns {Promise<PraticheDTO>}
* #memberof PraticheService
*/
public AddEmployee(emp: Employee): Array<Employee> {
return this.employees.push(emp);
}
}
and then use it in your components .. like:
import { Component, OnInit } from '#angular/core';
import { FormControl, FormGroup , Validators} from '#angular/forms';
import { FormsModule, ReactiveFormsModule } from '#angular/forms';
import {EmployeeService} from 'yourservicePATH'
#Component({
selector: 'app-createemployee',
templateUrl: './createemployee.component.html',
styleUrls: ['./createemployee.component.css']
})
export class CreateemployeeComponent implements OnInit {
model: any = {};
model2: any = {};
add=false;
create=true;
constructor(private employeeService: EmployeeService){
}
ngOnInit() {
this.model = new FormGroup({
'name': new FormControl(this.model.name,
[Validators.required, Validators.minLength(4),]),
'position': new FormControl(this.model.position,
[Validators.required, Validators.minLength(4),]),
'salary': new FormControl(this.model.salary, Validators.required)
});
}
employees = [{name: "Sunil", position: "Developer", salary: 20000},
{name: "Vamshi", position: "Java Developer", salary: 30000},
{name: "Chethan", position: ".Net Developer", salary: 10000}];
createEmp(){
this.add=true;
this.create=false;
this.Show=false;
this.edit=false;
}
addEmployee() {
this.employeeService.AddEmployee(this.model);
this.Show = true;
this.add = false;
this.model = {};
}
}