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Angular 角反应形式

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Angular 角反应形式,angular,angular-reactive-forms,Angular,Angular Reactive Forms,我是新手。我目前正在研究角度反应形式。我有一个下面的JSON结构，我需要在从表单中获取值后将其发回RESTAPI JSON结构： { "empDesg": "Sr Developer", "empID": 123, "empName": "Sam", "empSkills": [ "Java", "Devops" ] } 我设法将empID、empName和empDesg映射到fo

我是新手。我目前正在研究角度反应形式。我有一个下面的JSON结构，我需要在从表单中获取值后将其发回RESTAPI

JSON结构：

 {
  "empDesg": "Sr Developer",
  "empID": 123,
  "empName": "Sam",
  "empSkills": [
                "Java",
                "Devops"
               ]
 }
我设法将empID、empName和empDesg映射到formcontrols；它们都将成为输入文本元素。我想使用FormControl或formarray将empSkills映射到复选框（但不确定使用哪一个）-这里只有我被卡住了

我的HTML和组件类：

addamp.component.html

 <form class="form-emp" [formGroup]="empForm">
             <div class="form-group row ">
                <label for="empID" class="col-sm-2 col-form-label">EmpID</label>
                <div class="col-sm-10">
                    <input type="text" formControlName="empID" name="empID" class="form-control" id="empID" placeholder="Employee ID">
                     <div *ngIf="empForm.controls.empID.invalid && empForm.controls.empID.touched">
                    <ngb-alert type="danger" [dismissible]="false">Employee ID is must</ngb-alert>
                </div>
                </div>

                </div>
                <div class="form-group row">
                    <label for="empName" class="col-sm-2 col-form-label">EmpName</label>
                    <div class="col-sm-10">
                        <input type="text" formControlName="empName" name="empName" class="form-control" id="empName" placeholder="Employee Name">
                    </div>
                </div>
                <div class="form-group row">
                    <label for="empDesgn" class="col-sm-2 col-form-label">Emp Title</label>
                    <div class="col-sm-10">
                        <input type="text" formControlName="empDesg" name="empDesg" class="form-control" id="empDesgn" placeholder="Employee Title">
                    </div>
                </div>
                <p>Form value: {{ empForm.value | json }}</p>
                <div class="form-group row">
                    <div class="col-sm-2">Skillset</div>
                    <div class="col-sm-10">
                        <div class="form-check">
                            <input class="form-check-input" formControlName="skillSet" type="checkbox" id="gridCheck1">
                            <label class="form-check-label" for="gridCheck1">
                            Java
                            </label>
                        </div>
                        <div class="form-check">
                            <input class="form-check-input" formControlName="skillSet" type="checkbox" id="gridCheck1">
                            <label class="form-check-label" for="gridCheck1">
                            Dot Net
                            </label>
                        </div>
                        <div class="form-check">
                            <input class="form-check-input" formControlName="skillSet" type="checkbox" id="gridCheck1">
                            <label class="form-check-label" for="gridCheck1">
                            Dev Ops
                            </label>
                        </div>
                        <div class="form-check">
                            <input class="form-check-input" formControlName="skillSet" type="checkbox" id="gridCheck1">
                            <label class="form-check-label" for="gridCheck1">
                            Business Analyst
                            </label>
                        </div>
                        <div class="form-check">
                            <input class="form-check-input" formControlName="skillSet" type="checkbox" id="gridCheck1">
                            <label class="form-check-label" for="gridCheck1">
                            Automation Testing
                            </label>
                        </div>
                        <div class="form-check">
                            <input class="form-check-input" formControlName="skillSet" type="checkbox" id="gridCheck1">
                            <label class="form-check-label" for="gridCheck1">
                            UX
                            </label>
                        </div>
                    </div>
                </div>
                <div class="form-group row">
                    <div class="col-sm-10">
                        <button type="submit" class="btn btn-primary" (click)="diag()">Add Employee</button>
                    </div>
                </div>
        </form>
你能分享一下你对如何将复选框映射到我上面提到的JSON结构中的skillSet数组的看法吗。如果你和我分享这段代码，那会很有帮助。
非常感谢。

您可以查看反应式表单。这个应用程序还包括其他一些你迟早会遇到的功能

skillList: any[] = ['Java',Dot Net','Dev Ops'];

createForm() {
    this.empForm = this.fb.group({
      empID: ['', Validators.required],
      empName: ['', Validators.required],
      empDesg: ['', Validators.required],
      skills: this.fb.array(['Java','Devops']),        
    });    
  }

isSkillChecked(data) {
   return this.rForm.controls['skills'].value.includes(data);
}
html

<label>Skill Set:
      <span *ngFor="let skill of skillList">
        <input type="checkbox"
          (change)="onSkillChange(skill,$event.target.checked)"
          [checked]="isSkillChecked(skill)" /> {{skill}}
      </span>
</label>

技能集：
{{skill}}
我已经修改了我的例子以适应你的需要。请查看并让我知道。

home.component.html
谢谢你，沙申克。你收集了很多例子。对于empId，empName和empDesg I添加了验证器。如何为FormArray添加验证程序？你能解释一下吗。@user2427147：看一看。如果你需要进一步的帮助，一定要告诉我。如果您喜欢我的github回购协议，您可以“启动”它并进行后续操作，我正在使用主题示例不断更新回购协议。您是否尝试添加
验证器。在我的示例中需要
？我现在无法检查，所以请尝试一下，让我知道。

<label>Skill Set:
      <span *ngFor="let skill of skillList">
        <input type="checkbox"
          (change)="onSkillChange(skill,$event.target.checked)"
          [checked]="isSkillChecked(skill)" /> {{skill}}
      </span>
</label>



<div>
<p>Form 1</p>
<form [formGroup]="registerForm">
<div *ngFor="let grpdata of statusdata">
<input type="checkbox" formControlName="title" value="{{grpdata.groupid}}" class="form-control" [ngClass]="{ 'is-invalid': submitted && f.title.errors }">{{grpdata.groupname}}<br>

</div>
<div *ngIf="submitted && f.title.errors" class="invalid-feedback">
                        <div *ngIf="f.title.errors.required">Title is required</div>
                    </div>
<button type="submit" (click)="getSelectedVal()">Click here</button>
 </form>
</div>

<div>
<p>Form 2</p>
<form [formGroup]="editForm">
<input type="textbox" disabled formControlName="edithidden" [(ngModel)]="hello" class="form-control"><br>
<div *ngFor="let grpdata of statusdata">
<input type="checkbox" formControlName="edittitle" value="{{grpdata.groupid}}" class="form-control" [ngClass]="{ 'is-invalid': submitted1 && g.edittitle.errors }">{{grpdata.groupname}}<br>


</div>
<div *ngIf="submitted1 && g.edittitle.errors" class="invalid-feedback">
                        <div *ngIf="g.edittitle.errors.required">Title is required</div>
                    </div>
<button type="submit" (click)="editSelectedVal()">Click here</button>
 </form>
</div>



import { Component, OnInit } from '@angular/core';
import { CommonserviceService } from './../utilities/services/commonservice.service';
import { FormBuilder, FormControl, FormGroup, Validators } from '@angular/forms';
declare var $: any;
@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
})
export class HomeComponent implements OnInit {
    submitted = false;
    submitted1 = false;
  getListData: any;
  registerForm: FormGroup;
  editForm: FormGroup;
  statusdata: any;
  constructor(private commonserviceService: CommonserviceService,private formBuilder: FormBuilder)
  {
      this.registerForm = this.formBuilder.group({
             title: ['', Validators.required],
     });
     this.editForm = this.formBuilder.group({
             edittitle: ['', Validators.required],
             edithidden: new FormControl()
     });

  }

  ngOnInit() {

      this.statusdata = [{"groupid":1,"groupname":"project1"},{"groupid":2,"groupname":"project2"},{"groupid":3,"groupname":"project3"}];

  }
   get f() { return this.registerForm.controls; }
   get g() { return this.editForm.controls; }
 getSelectedVal(){

     this.submitted = true;

        // stop here if form is invalid
        if (this.registerForm.invalid) {
            return;
        }
console.log('submitted');   
 }
 editSelectedVal(){

     this.submitted1 = true;

        // stop here if form is invalid
        if (this.editForm.invalid) {
            return;
        }
console.log('submitted edit');  
 }
}