我已经添加了角度路由到我的crud操作..在没有路由之前我添加的数据能够在表中显示但是现在在实现路由之后数据没有存储在表中
这是createemployee.component.html
的代码<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)
我在哪里犯了错误..我正在尝试将创建的员工与所有其他3位硬编码员工一起添加到现有表中
答案 0 :(得分：0)
形成我看到你的问题是你正在推动组件中的新员工..但你在另一个员工表中呈现员工表，我看到你的员工数组不是来自服务或来自@input（）指令...
所以例如创建一个像：
这样的服务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);
}
}
然后在你的组件中使用它......比如：
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 = {};
}
}