我们正试图在我们公司建立我们自己的形式场组件。我们试图这样包装材料设计的组件:
字段:
<mat-form-field>
<ng-content></ng-content>
<mat-hint align="start"><strong>{{hint}}</strong> </mat-hint>
<mat-hint align="end">{{message.value.length}} / 256</mat-hint>
<mat-error>This field is required</mat-error>
</mat-form-field>
文本框:
<field hint="hint">
<input matInput
[placeholder]="placeholder"
[value]="value"
(change)="onChange($event)"
(keydown)="onKeydown($event)"
(keyup)="onKeyup($event)"
(keypress)="onKeypress($event)">
</field>
用法:
<textbox value="test" hint="my hint"></textbox>
结果大致如下:
<textbox placeholder="Personnummer/samordningsnummer" value="" ng-reflect-placeholder="Personnummer/samordningsnummer">
<field>
<mat-form-field class="mat-input-container mat-form-field">
<div class="mat-input-wrapper mat-form-field-wrapper">
<div class="mat-input-flex mat-form-field-flex">
<div class="mat-input-infix mat-form-field-infix">
<input _ngcontent-c4="" class="mat-input-element mat-form-field-autofill-control" matinput="" ng-reflect-placeholder="Personnummer/samordningsnummer" ng-reflect-value="" id="mat-input-2" placeholder="Personnummer/samordningsnummer" aria-invalid="false">
<span class="mat-input-placeholder-wrapper mat-form-field-placeholder-wrapper"></span>
</div>
</div>
<div class="mat-input-underline mat-form-field-underline">
<span class="mat-input-ripple mat-form-field-ripple"></span>
</div>
<div class="mat-input-subscript-wrapper mat-form-field-subscript-wrapper"></div>
</div>
</mat-form-field>
</field>
</textbox>
但是我在控制台中得到”mat-form-field必须包含一个matformfieldcontrol”。我猜这与mat-form-field不直接包含matinput字段有关。但它包含了它,只是在ng-content投影中。
下面是闪电战: https://stackblitz.com/edit/angular-xpvwzf < / p >