@angular/forms/esm2015/src/directives/template_driven_errors.js

Angular - directives and services for creating forms

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { FormErrorExamples as Examples } from './error_examples';
export class TemplateDrivenErrors {
    static modelParentException() {
        throw new Error(`
      ngModel cannot be used to register form controls with a parent formGroup directive.  Try using
      formGroup's partner directive "formControlName" instead.  Example:

      ${Examples.formControlName}

      Or, if you'd like to avoid registering this form control, indicate that it's standalone in ngModelOptions:

      Example:

      ${Examples.ngModelWithFormGroup}`);
    }
    static formGroupNameException() {
        throw new Error(`
      ngModel cannot be used to register form controls with a parent formGroupName or formArrayName directive.

      Option 1: Use formControlName instead of ngModel (reactive strategy):

      ${Examples.formGroupName}

      Option 2:  Update ngModel's parent be ngModelGroup (template-driven strategy):

      ${Examples.ngModelGroup}`);
    }
    static missingNameException() {
        throw new Error(`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}">`);
    }
    static modelGroupParentException() {
        throw new Error(`
      ngModelGroup cannot be used with a parent formGroup directive.

      Option 1: Use formGroupName instead of ngModelGroup (reactive strategy):

      ${Examples.formGroupName}

      Option 2:  Use a regular form tag instead of the formGroup directive (template-driven strategy):

      ${Examples.ngModelGroup}`);
    }
}
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