是否可以有一个没有表单标签的 Angular 2 表单组?
Is it possible to have an Angular 2 formGroup without a form tag?
我正在寻找 Angular 2 documentation,但无法找到有关如何使用 formGroup.
的最佳实践
Is it mandatory to enclose a formGroup
with a form tag ?
我查看了这个堆栈溢出问题:
我创建了这个组件模板:
<div [formGroup]="infoIdentityForm">
<div class="info-identity_title" *ngIf="showTitle">
<div class="group-title">Titre</div>
<div class="group-radio">
<span *ngFor="let choice of enumTitleValue">
<label>{{choice}}</label>
<input type="radio" formControlName="title" name="title" [id]="choice"/>
</span>
</div>
</div>
<div class="info-identity_firstname">
<div class="group-title">Prénom</div>
<div class="group-input">
<input type="text" class="form-control" formControlName="firstName" maxlength="25">
</div>
</div>
<div class="info-identity_lastname">
<div class="group-title">Nom</div>
<div class="group-input">
<input type="text" class="form-control" formControlName="lastName" maxlength="25">
</div>
</div>
</div>
我试图避免使用嵌套表单标签
您要查找的是 formGroupName
指令
This directive can only be used with a parent FormGroupDirective
(selector: [formGroup]).
It accepts the string name of the nested FormGroup you want to link,
and will look for a FormGroup registered with that name in the parent
FormGroup instance you passed into FormGroupDirective.
Nested form groups can come in handy when you want to validate a
sub-group of a form separately from the rest or when you'd like to
group the values of certain controls into their own nested object.
https://angular.io/docs/ts/latest/api/forms/index/FormGroupName-directive.html
<div formGroupName="infoIdentityForm">
</div>
根据文档,在某些时候需要在 <form [formGroup]="formProperty">
中进行合法定义,并避免使用多个 <form>
标签。
如果您有子组件,您仍然需要 [formGroup]
,但它可以不在 <form>
标记中。如果你想在一个大表格中使用它,那么你需要从父级输入你的 FormGroup 并将其设置为:
<td [formGroup]="parentGroup">
<input type="text" formControlName="myControl"
</td>
@Input() parentGroup: FormGroup;
我正在寻找 Angular 2 documentation,但无法找到有关如何使用 formGroup.
的最佳实践Is it mandatory to enclose a
formGroup
with a form tag ?
我查看了这个堆栈溢出问题:
我创建了这个组件模板:
<div [formGroup]="infoIdentityForm">
<div class="info-identity_title" *ngIf="showTitle">
<div class="group-title">Titre</div>
<div class="group-radio">
<span *ngFor="let choice of enumTitleValue">
<label>{{choice}}</label>
<input type="radio" formControlName="title" name="title" [id]="choice"/>
</span>
</div>
</div>
<div class="info-identity_firstname">
<div class="group-title">Prénom</div>
<div class="group-input">
<input type="text" class="form-control" formControlName="firstName" maxlength="25">
</div>
</div>
<div class="info-identity_lastname">
<div class="group-title">Nom</div>
<div class="group-input">
<input type="text" class="form-control" formControlName="lastName" maxlength="25">
</div>
</div>
</div>
我试图避免使用嵌套表单标签
您要查找的是 formGroupName
指令
This directive can only be used with a parent FormGroupDirective (selector: [formGroup]).
It accepts the string name of the nested FormGroup you want to link, and will look for a FormGroup registered with that name in the parent FormGroup instance you passed into FormGroupDirective.
Nested form groups can come in handy when you want to validate a sub-group of a form separately from the rest or when you'd like to group the values of certain controls into their own nested object.
https://angular.io/docs/ts/latest/api/forms/index/FormGroupName-directive.html
<div formGroupName="infoIdentityForm">
</div>
根据文档,在某些时候需要在 <form [formGroup]="formProperty">
中进行合法定义,并避免使用多个 <form>
标签。
如果您有子组件,您仍然需要 [formGroup]
,但它可以不在 <form>
标记中。如果你想在一个大表格中使用它,那么你需要从父级输入你的 FormGroup 并将其设置为:
<td [formGroup]="parentGroup">
<input type="text" formControlName="myControl"
</td>
@Input() parentGroup: FormGroup;