Question

我已经使用Form Builder创建了此表单，但是在控制台中抛出了错误。

错误：

compiler.js：1021未捕获的错误：模板解析错误：意外字符“ EOF”（“ rity.value，负责任的值”）mat-raised-button color =“ primary”>保存

代码：

<mat-card>
  <form [formGroup]="createForm" class="create-form">
    <mat-form-field class="field-full-width">
      <input matInput placeholder="Title" formControlName="title" #title>
    </mat-form-field>
    <mat-form-field class="field-full-width">
      <input matInput placeholder="Responsible" formControlName="responsible" #responsible>
    </mat-form-field>
    <mat-form-field class="field-full-width">
        <textarea matInput placeholder="Description" formControlName="description" #description>
    </mat-form-field>
    <mat-form-field class="field-full-width">
       <mat-select placeholder="Severity" formControlName="severity" #severity>
         <mat-option value="low">Low</mat-option>
         <mat-option value="medium">Medium</mat-option>
         <mat-option value="high">High</mat-option>
       </mat-select>
    </mat-form-field>
    <mat-divider></mat-divider>
    <br>
    <br>
    <button mat-raised-button color="accent" routerLink="/list">Back</button>
    <button type="submit" (click)="addIssue(title.value, description.value, severity.value, responsible.value)" mat-raised-button color="primary">Save</button>
  </form>
</mat-card>

.ts

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormBuilder, Validators } from '@angular/forms';
import { Router } from '@angular/router';
import {IssueService} from '../../../issue.service';

@Component({
  selector: 'app-create',
  templateUrl: './create.component.html',
  styleUrls: ['./create.component.css']
})
export class CreateComponent implements OnInit {

  createForm: FormGroup;

  constructor(private Issue: IssueService, private router: Router, private fb: FormBuilder) {
      this.createForm = this.fb.group({
        title: '',
        description: '',
        severity: '',
        responsible: ''
      });
  }

  addIssue(title, description, responsible, severity) {
      this.Issue.addIssue(title, description, severity, responsible).subscribe(() => {
        console.log('Issue added');
        this.router.navigate(['/list']);
      });
  }

  ngOnInit() {
  }

}

Answer 1

这样做的原因是您忘记关闭textarea标签。

 <textarea ... formControlName="description" #description></textarea>
                                                             /\
                                                             ||
                                                          add this

Angular遵循HTML规范规定的相同限制

Answer 2

您在选择垫子时出错。您不能在mat-select上创建模板变量。我不明白您为什么要传递这样的价值观。不建议在ReactiveForms中使用此方法。用以下内容替换您的html：

<mat-card>
  <form [formGroup]="createForm" class="create-form">
    <mat-form-field class="field-full-width">
      <input matInput placeholder="Title" formControlName="title">
    </mat-form-field>
    <mat-form-field class="field-full-width">
      <input matInput placeholder="Responsible" formControlName="responsible">
    </mat-form-field>
    <mat-form-field class="field-full-width">
        <textarea matInput placeholder="Description" formControlName="description">
    </mat-form-field>
    <mat-form-field class="field-full-width">
       <mat-select placeholder="Severity" formControlName="severity">
         <mat-option value="low">Low</mat-option>
         <mat-option value="medium">Medium</mat-option>
         <mat-option value="high">High</mat-option>
       </mat-select>
    </mat-form-field>
    <mat-divider></mat-divider>
    <br>
    <br>
    <button mat-raised-button color="accent" routerLink="/list">Back</button>
    <button type="submit" (click)="addIssue()" mat-raised-button color="primary">Save</button>
  </form>
</mat-card>

使用以下内容替换您的组件：

从'@ angular / core'导入{Component，OnInit};

import { FormGroup, FormBuilder, Validators } from '@angular/forms';
import { Router } from '@angular/router';
import {IssueService} from '../../../issue.service';

@Component({
  selector: 'app-create',
  templateUrl: './create.component.html',
  styleUrls: ['./create.component.css']
})
export class CreateComponent implements OnInit {

  createForm: FormGroup;

  constructor(private Issue: IssueService, private router: Router, private fb: FormBuilder) {
      this.createForm = this.fb.group({
        title: '',
        description: '',
        severity: '',
        responsible: ''
      });
  }

  addIssue() {
      this.Issue.addIssue(...this.createForm.value).subscribe(() => {
        console.log('Issue added');
        this.router.navigate(['/list']);
      });
  }

  ngOnInit() {
  }

}

出现意外的EOF字符错误（呈角度形式），为什么？

2 个答案: