使用formbuilder更改對象數組的值

Question

我在使用formbuilder時存在角度2的問題。我遇到以下情況。

我正在驗證電子郵件，如果我已經在員工數組內部清理了該字段，如果允許，則什麼也不做。我運行一個foreach來檢查這一點，我在構造函數創建的formbuild和指涉部分看起來是這樣的：

我添加與需求的目的因此。

我把一個模糊事件中輸入並執行該功能。

public verifyEmail(employee_email: string, index) { 
    if (employee_email === '') { 
    return; 
    } 

    let ocorrency = 0; 
    this.formOrganization.value.employees.forEach(employee => { 
    if (employee.email === employee_email) { 
     ocorrency += 1 
    } 
    }); 

    if (ocorrency >= 2) { 
    this.messageNotify(false, 'email_already_exists'); 
    this.formOrganization.get('employees')[index].patchValue({'email': ''}); 
    } 
} 

對於發送2個參數的函數，第一個是，我需要測試的電子郵件，並且指的是我的工作陣列內對象的第二索引，它是在該索引，我需要零場。

如何做到這一點？

我的HTML是：

 <div class="col-md-12 col-12 tabs-content" *ngIf="membersTabs"> 
     <div class="row" formArrayName="employees"> 
     <div class="col-12"> 
      <button class="btn btn-new pull-left" (click)="addEmployeer()">Adicionar Membros</button> 
     </div> 
     <div class="col-12"> 
      <div class="card card-members" 
       *ngFor="let employeer of formOrganization.controls.employees.controls; let index = index" 
       [formGroupName]="index"> 
      <div class="card-header"> 
       <div class="col-sm-12 col-md-8"> 
       <strong class="text-capitalize">{{formOrganization.value.employees[index].first_name}} 
        {{formOrganization.value.employees[index].second_name}}</strong> 
       </div> 
       <div class="wrapper-switch col-sm-12 col-md-4"> 
       <div class="row"> 
        <div class="col-sm-12 col-md-6"> 
        <button class="btn btn-new btn-transparent" *ngIf="formOrganization.value.employees[index]._id" 
          (click)="[changePasswordSelected(employeer.value), passwordModal.show()]">ALTERAR SENHA 
        </button> 
        </div> 
        <div class="col-sm-12 col-md-6"> 
        <button class="btn btn-cancel" (click)="removeEmployeer(index)">Remover</button> 
        </div> 
       </div> 
       </div> 
      </div> 
      <div class="card-block"> 
       <div class="row"> 
       <div class="col-lg-4 col-md-6 col-sm-12 form-group"> 
        <label class="col-md-10 form-control-label">Primeiro Nome</label> 
        <div class="col-md-12"> 
        <input class="form-control " name="first_name" type="text" 
          formControlName="first_name"> 
        </div> 
       </div> 
       <div class="col-lg-4 col-md-6 col-sm-12 form-group"> 
        <label class="col-md-10 form-control-label">Sobrenome</label> 
        <div class="col-md-12"> 
        <input class="form-control " name="second_name" type="text" 
          formControlName="second_name"> 
        </div> 
       </div> 
       <div class="col-lg-4 col-md-6 col-sm-12 form-group"> 
        <label class="col-md-10 form-control-label">Cargo</label> 
        <div class="col-md-12"> 
        <input class="form-control " name="office" type="text" formControlName="office"> 
        </div> 
       </div> 
       <div class="col-lg-2 col-md-6 col-sm-12 form-group"> 
        <label class="col-md-10 form-control-label">Acesso</label> 
        <div class="col-md-12"> 
        <select class="form-control modal-input" id="access" name="access" formControlName="access"> 
         <option value="">Selecione a opção</option> 
         <option *ngFor="let item of accesss" 
           [selected]="item.name == employeer.value.access.name" 
           [ngValue]="item">{{item.name}} 
         </option> 
        </select> 
        </div> 
       </div> 
       <div class="col-lg-2 col-md-1 col-sm-12 form-group"> 
        <label class="col-md-10 form-control-label">Status</label> 
        <div class="col-md-12"> 
        <label class="switch switch-text switch-pill switch-primary"> 
         <input type="checkbox" class="switch-input " formControlName="status"> 
         <span class="switch-label" data-on="On" data-off="Off"></span> 
         <span class="switch-handle"></span> 
        </label> 
        </div> 
       </div> 
       <div class="col-lg-4 col-md-6 col-sm-12 form-group"> 
        <label class="col-md-10 form-control-label">Email</label> 
        <div class="col-md-12"> 
        <input class="form-control " name="email" type="text" formControlName="email" 
          (blur)="verifyEmail(formOrganization.value.employees[index].email, index)"> 
        </div> 
       </div> 
       <div class="col-lg-4 col-md-5 col-sm-12 form-group" 
        *ngIf="!formOrganization.value.employees[index]._id"> 
        <label class="col-md-10 form-control-label">Senha</label> 
        <div class="col-md-12"> 
        <input class="form-control " name="password" type="password" 
          formControlName="password"> 
        </div> 
       </div> 
       </div> 
      </div> 
      </div> 
     </div> 
     </div> 
    </div> 

我的形式從formBuilder：

Answer 1

，如果你想清楚你字段，您可以使用patchValue更改表格的一個元素，這將改變您的輸入字段以及

this.formOrganization.patchValue({ 
    email: '' 
}); 

更新

如果電子郵件位於employess下，仍然可以使用patchValue作爲嵌套數組。你可以傳遞的價值和指數的模糊事件

<label class="center-block">email: 
      <input class="form-control" #email formControlName="email" (blur)="test(email.value,i)"> 
      </label> 


test(value, index){ 
let x = <FormArray>this.heroForm.get('employees'); 
let y = (<FormControl>x.controls[index]) 

y.patchValue({ 
    email: '' 
}) 

} 

你可以從* ngFor員工獲得指數，讓我=指數