我尝试过但未能找到重置角度形式的方法。
有人可以帮忙吗?
<form #thisIsAForm>
<mat-form-field class="full-width">
<input matInput placeholder="Weather">
</mat-form-field>
</form>
<button mat-raised-button (click)="resetForm()">Reset</button>
export class Example{
@ViewChild('thisIsAForm') thisIsAForm;
resetForm() {
this.thisIsAForm.reset();
}
}
答案 0 :(得分:16)
差不多!使用反应形式:
<form [formGroup]="myForm">
<mat-form-field class="full-width">
<input matInput placeholder="Weather" formControlName="weather">
</mat-form-field>
</form>
<button mat-raised-button (click)="myForm.reset()">Reset</button>
export class Example{
myForm: FormGroup;
constructor(private fb: FormBuilder) {
this.myForm = fb.group({
weather: ''
});
}
// If the HTML code doesn't work, simply call this function
reset() {
this.myForm.reset();
}
}
答案 1 :(得分:2)
<form [formGroup]="thisIsAForm" (ngSubmit)="onSubmit()">
<mat-form-field class="full-width">
<input formControlName="weather" placeholder="Weather">
</mat-form-field>
</form>
<button mat-raised-button (click)="resetForm()">Reset</button>
export class Example{
thisIsAForm: FormGroup;
constructor() {
this.thisIsAForm = new FormGroup(
weather: new FormControl('')
);
}
resetForm() {
this.thisIsAForm.reset();
}
}
答案 2 :(得分:0)
在这里,我重置了模板驱动的表单而不会弄脏表单。
<form class="example-form" #charreplaceform="ngForm">
<mat-form-field class="example-full-width">
<input matInput #codepointSel="ngModel" (change)="createReplacementChar()" (keyup)="checkForNumber()"
required [(ngModel)]="charReplaceInfo.codePoint" name="code-point" placeholder="Code Point (Only number)"
[disabled]="isDisabled">
</mat-form-field>
<a (click)="refreshCharRecord(charreplaceform)">
<i class="material-icons">
loop
</i>
</a>
</form>
// in .ts
refreshCharRecord(form: NgForm) { // getting the form reference from template
form.form.reset(); // here we are resetting the form without making form dirty
}
答案 3 :(得分:0)
在Angular 8中,如果您这样做
<form #form="ngForm" (ngSubmit)="process(form)">
process(form: NgForm) { ...
使用--prod
构建时会出现以下错误
“ FormGroupDirective”类型的参数不能分配给参数 类型为“ NgForm”。
在(ngSubmit)
我所做的是将form
模板引用注入为FormGroupDirective
,然后调用resetForm()
。
<form #form (ngSubmit)="process(form)">
@ViewChild('form', { static: false }) FormGroupDirective formDirective;
答案 4 :(得分:0)
我认为您需要在html代码中添加ngForm指令(如下所述)stackbliz示例,还需要在表单元素中添加名称和ngModel ngControl。
答案 5 :(得分:0)
对我来说,将type =“ reset”添加到“重置”按钮已解决问题
<button **type = "reset"** mat-raised-button (click)="resetForm()">Reset</button>