表单中的Angular 5输入不会更新formControl

时间:2018-01-25 14:12:11

标签: angular forms typescript angular-material

我试图重现here的第一个概述,但我无法进入步进器的最后一步,因为第二步从未被接受,即使我在分配给queryCtrl控件的输入。这是我的代码:

HTML:

<div>
  <mat-horizontal-stepper [linear]="true">
    <mat-step [stepControl]="criterionFormGroup">
      <form [formGroup]="criterionFormGroup">
        <ng-template matStepLabel>Select the filter criterion</ng-template>
        <mat-form-field>
          <mat-select placeholder="Criterion" formControlName="critCtrl" required>
            <mat-option value="description">Description</mat-option>
            <mat-option value="user">User</mat-option>
            <mat-option value="status">Status</mat-option>
            <mat-option value="unit">Unit</mat-option>
            <mat-option value="created_timestamp">Created</mat-option>
            <mat-option value="modified_timestamp">Modified</mat-option>
          </mat-select>
        </mat-form-field>
        <button class="btn" mat-button matStepperNext>Next</button>
      </form>
    </mat-step>
    <mat-step [stepControl]="filterValueForm">
      <form [formGroup]="filterValueForm">
        <ng-template matStepLabel>Specify the criterion</ng-template>
        <mat-form-field>
          <input matInput placeholder="Description contains..." formContorlName="queryCtrl">
        </mat-form-field>
        <button class="btn" mat-button matStepperNext>Next</button>
      </form>
    </mat-step>
    <mat-step>
      <ng-template matStepLabel>Finish</ng-template>
    </mat-step>
  </mat-horizontal-stepper>
</div>

TS:

import { Component, OnInit } from '@angular/core';
import { MatDialog, MAT_DIALOG_DATA } from '@angular/material';
import {FormBuilder, FormGroup, Validators} from '@angular/forms';
import { FormGroupDirective } from '@angular/forms/src/directives/reactive_directives/form_group_directive';


export class Filter {
  action;
  name;
  constructor(action, name) {
    this.action = action;
    this.name = name;
  }
}


@Component({
  templateUrl: 'filter.html'
})
export class FilterComponent implements OnInit {
  criterionFormGroup: FormGroup;
  filterValueForm: FormGroup;

  criterion;

  descriptionQuery;

  constructor(private _formBuilder: FormBuilder) {

  }

  ngOnInit() {
    this.criterionFormGroup = this._formBuilder.group({
      critCtrl: ['', Validators.required]
    });
    this.filterValueForm = this._formBuilder.group({
      queryCtrl: ['', Validators.required]
    });
  }
}

这是我已经知道的:当我在分配给它们的输入字段中输入值时,queryCtrl控件的值不会更新。我尝试了几种变体,比如在第一步中输入输入,但同样的事情发生了。我可能错过了一些微不足道的东西,但我没有经验的角度,所以一些帮助将不胜感激。

1 个答案:

答案 0 :(得分:2)

这是因为拼写错误...

你说:

formContorlName="queryCtrl">

应该是:

formControlName="queryCtrl">

干杯。