错误错误:名称为"products"的表单控件没有值访问器 [英] ERROR Error: No value accessor for form control with name: 'products'

问题描述

我的项目显示此错误:

错误错误:名称为'products'的表单控件没有值访问器.

ERROR Error: No value accessor for form control with name: 'products'.

我想在Myform组件中添加一个数组Products.

I want to add an array Products in Myform component.

我有2个问题:

1. 当我单击注册"按钮时，我看到此错误.
2. 我的产品数组在表中顺序排列，但是当注册时，此数组为空.我的源代码.

HTML代码:

<form [formGroup]="Myform" (ngSubmit)="onaddMyForm()">
  <div class="contant">
    <div class="input-field col s4">
      <div class="input-field col s12">
        <select formControlName="client_id" id="client_id" materialize="material_select" [materializeSelectOptions]="client">
          <option value="" disabled selected>ClientName</option>
          <option *ngFor="let item of client" [value]="item.client_id">{{item.clientName}}</option>
        </select>
      </div>
      <br>
      <div class="row">
        <div class="input-field col s12">
          <label for="total">total:</label>
          <input formControlName="total" id="total" type="text" class="validate">
        </div>
      </div>
    </div>
  </div>
  <br>
  <table formControlName="products" align="center" class="table table-bordered table-hover">
    <thead>
      <tr style="color:black;">
        <th>Price</th>
        <th>Quantita</th>
        <th>Subtotale</th>
      </tr>
    </thead>
    <tbody>
      <tr [routerLink]="i" class="group" style="cursor: pointer" *ngFor="let item of products; let i=index">
        <td>{{item.Price}}</td>
        <td>{{item.Quantita}}</td>
        <td>{{item.Subtotale}}</td>
      </tr>
    </tbody>
  </table>
  <br>
  <hr>
  <br>
  <div id="add_homebox_button_container" class="row" style="float: right;">
    <button id="add_client_button" type="submit" class="btn waves-effect waves-light">
      Register
    </button>
  </div>
</form>

我的ts代码:

我的构造函数:

     constructor(
        private router: Router,
        private fb: FormBuilder,
        private ss: ws,

      ) {
// I create the formGroup
            this.Myform = new FormGroup({
              'client_id': new FormControl('', Validators.required),
              'products': this.fb.array([]),
              'total': new FormControl('', Validators.required)
            });
            }

//My function that post in ws My form Value
              onaddMyForm() {
            this.loading = true;
            let newprod = new Product(
              this.Myform.value
            );
            console.log(newprod)// in console my array is empty

            this.ss.prodcreate(newprod).subscribe(
              result => {
                if (result === true) {
                  Materialize.toast('Prod saved successfully', 4000);
                     } else {
                  this.loading = false;
                }
              },
              error => {
                this.loading = false;
              }
            );
          }

我应该如何解决?
图错误

How should I do to fix it?
Img err

推荐答案

好吧，我遇到了类似的问题错误:没有用于表单控件的值访问器没有未指定的值访问器"

well, i was in a similar issue "ERROR Error: No value accessor for form control with unspecified "

我试图解决2天，搜索了完整的Stackoverflow，

i tried to solved it for 2 days, searched complete Stackoverflow,

最后起作用了，我做了什么

at last what worked and what i did

• 在代码中查找所有ngModel并为其添加名称属性.
• 如果已指定名称，请在其中添加"ngDefaultControl"

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