Angular2如果在表单标签中使用ngModel,则必须设置name属性或窗体

发布时间：2020-12-17 08:18:23 所属栏目：安全来源：网络整理

导读：我从角度2得到这个错误 core.umd.js:5995 EXCEPTION: Uncaught (in promise): Error: Error in app/model_exposure_currencies/model_exposure_currencies.component.html:57:18 caused by: If ngModel is used within a form tag,either the name attribute

我从角度2得到这个错误

core.umd.js:5995 EXCEPTION: Uncaught (in promise): Error: Error in app/model_exposure_currencies/model_exposure_currencies.component.html:57:18 caused by: If ngModel is used within a form tag,either the name attribute must be set or the form
      control must be defined as 'standalone' in ngModelOptions.

      Example 1: <input [(ngModel)]="person.firstName" name="first">
      Example 2: <input [(ngModel)]="person.firstName" [ngModelOptions]="{standalone: true}">



  <td *ngFor="let lag of ce.lags">
                  <div class="form-group1">
                    <input name="name" [(ngModel)]="lag.name" [ngModelOptions]="{standalone: true}"  class="form-control" pattern="[0-9]*(.[0-9]+)?" required>
                  </div>

                </td>

这是我如何使用表单标签：

<form #f="ngForm" (ngSubmit)="onSubmit()">

如果使用ngForm，则具有[(ngModel)] =“”的所有输入字段必须具有带值的属性名称。

<input [(ngModel)]="firstname" name="something">

（编辑：李大同）

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