[英]angular 4 submit form by pressing enter with login button
是否可以提交具有提交按钮的表单(按Enter键)
我有两个文本字段,通过单击登录按钮我能够处理结果,但我无法通过按Enter键来执行此操作。
这是HTML代码(使用完整代码更新)
这是signin.component.html
<div class="modal-content" style="padding: 10px;" id="login" *ngIf="show">
<div class="modal-body text-left">
<div class="login">
<h2>Login</h2>
<hr>
<div class="row socialButtons">
<div class="col-xs-12 col-sm-12 col-md-4">
<a class="btn btn-lg btn-block btn-facebook" (click)="signInFacebook()">
<i class="fa fa-facebook visible-xs"></i>
<span class="hidden-xs">Facebook</span>
</a>
</div>
<div class="col-xs-12 col-sm-12 col-md-4">
<a class="btn btn-lg btn-block btn-linked-in" (click)="signInLinkedin()">
<i class="fa fa-linkedin visible-xs"></i>
<span class="hidden-xs">Linkedin</span>
</a>
</div>
<div class="col-xs-12 col-sm-12 col-md-4">
<a class="btn btn-lg btn-block btn-google-plus" (click)="signInGoogle()">
<i class="fa fa-google-plus visible-xs"></i>
<span class="hidden-xs">Google</span>
</a>
</div>
</div>
<br>
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12">
<form class="loginForm" #loginForm="ngForm" action="" autocomplete="off" method="POST">
<div class="form-group">
<label class="control-label" for="signupName">Email</label>
<input type="email" class="form-control" name="username" placeholder="Email" [(ngModel)]="username" required>
</div>
<div class="form-group">
<label class="control-label" for="signinPassword">Password</label>
<input type="password" class="form-control" name="password" placeholder="Password" [(ngModel)]="password" required>
</div>
</form>
<div class = "error"> {{ errMsg }} </div>
<button class="btn btn-lg btn-info btn-block btnlog" type="button" [disabled]="loginForm.invalid" (click)="login()">Login</button>
<hr>
</div>
</div>
<div class="row row-sm-offset-3">
<div class="col-xs-12 col-sm-12 col-md-6">
<p class="forgotPwd">
Forgot password? <a href="javascript:void(0)" (click)="reset()"> Reset</a>
</p>
<p class="forgotPwd">
New User? <a href="javascript:void(0)" (click)="signup()"> Register now</a>
</p>
</div>
</div>
</div>
</div>
</div>
<div *ngIf="showSignUp">
<app-sign-up></app-sign-up>
</div>
<div *ngIf="showForgotPassword">
<app-forgot-password></app-forgot-password>
</div>
这个signin.component.ts文件
import { Component, OnInit } from '@angular/core';
import {NgbModal, NgbActiveModal} from '@ng-bootstrap/ng-bootstrap';
import { Router } from '@angular/router';
import { AuthService } from '../services/auth/auth.service';
@Component({
selector: 'app-sign-in',
templateUrl: './sign-in.component.html',
styleUrls: ['./sign-in.component.css']
})
export class SignInComponent implements OnInit {
username:string;
password:string;
show = true;
showSignUp = false;
showForgotPassword = false;
errMsg = "";
constructor(
private authService: AuthService,
public activeModal: NgbActiveModal,
) { }
ngOnInit() {
this.authService.getEmitter().subscribe(res => {
if(res){
this.activeModal.dismiss('success');
}
else{
this.username = "";
this.password = "";
this.errMsg = "Invalid Username/Password";
}
})
}
signInGoogle(){
this.authService.loginWithGoogle();
}
signInFacebook(){
this.authService.loginWithFacebook();
}
signInLinkedin(){
this.authService.loginWithLinkedin();
}
logOut(){
this.authService.logOut();
}
login(){
this.authService.login(this.username,this.password);
}
reset(){
this.show = false;
this.showSignUp = false;
this.showForgotPassword = true;
}
signup(){
this.show = false;
this.showSignUp = true;
this.showForgotPassword = false;
}
}
是的你可以。
通常,您需要将代码放在action=""
。 但这不是旧的HTML,这是Angular,它适用于Javascript。
因此,为了做到这一点,您需要添加novalidate
标记,并在验证时告诉表单该做什么。
您还需要声明提交输入而不是按钮。
这看起来像
<form class="loginForm" novalidate (ngSubmit)="login()" autocomplete="off">
<input type="submit" value="Login" class="btn btn-lg btn-info btn-block btnlog" [disabled]="loginForm.invalid" (click)="login()"/>
您的按钮应位于表单内,但您已在两个输入字段内关闭它。
像这样更新您的代码
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12">
<form class="loginForm" #loginForm="ngForm" action="" (submit)="login()" autocomplete="off" method="POST">
<div class="form-group">
<label class="control-label" for="signupName">Email</label>
<input type="email" class="form-control" name="username" placeholder="Email" [(ngModel)]="username" required>
</div>
<div class="form-group">
<label class="control-label" for="signinPassword">Password</label>
<input type="password" class="form-control" name="password" placeholder="Password" [(ngModel)]="password" required>
</div>
<div class = "error"> {{ errMsg }} </div>
<button type="submit" class="btn btn-lg btn-info btn-block btnlog" [disabled]="loginForm.invalid" (click)="login()">Login</button>
</form>
<hr>
</div>
</div>
是的,这是可能的,非常简单!
首先,你必须更换
(button)="button()"
同
(ngSubmit)="login()"
并从按钮中删除单击处理程序并更改要提交的类型。
这两行都改变了如下:
<form class="loginForm" #loginForm="ngForm" action="" autocomplete="off" (ngSubmit)="login()" method="POST">
和:
<button type="submit" class="btn btn-lg btn-info btn-block btnlog" [disabled]="loginForm.invalid">Login</button
不要忘记这样,按钮()不会被调用。
Angular文档对大多数基因主题都很有帮助,也许你应该看看那里。
使用(keyup.enter)=“focusableSubmit.click()”输入密码并调用#focusableSubmit到Button登录,这将执行任务和按钮相同,如下面的代码所示。
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12">
<form class="loginForm" #loginForm="ngForm" action="" autocomplete="off" method="POST">
<div class="form-group">
<label class="control-label" for="signupName">Email</label>
<input type="email" class="form-control" name="username" placeholder="Email" [(ngModel)]="username" required>
</div>
<div class="form-group">
<label class="control-label" for="signinPassword">Password</label>
<input type="password" class="form-control" name="password" placeholder="Password" [(ngModel)]="password" required (keyup.enter)="focusableSubmit.click()">
</div>
</form>
<div class = "error"> {{ errMsg }} </div>
<button #focusableSubmit class="btn btn-lg btn-info btn-block btnlog" type="button" [disabled]="loginForm.invalid" (click)="login()">Login</button>
<hr>
</div>
</div>
这是我发送评论表格的一个短版。 如你所见,我阻止了textarea上的ENTER事件,这将导致按下ENTER同时专注于textarea而不创建一个新行(但你可以使用Shift + Enter)。 按Enter键发送表格。
<form #addCommentForm="ngForm" (keydown.enter)="addComment(addCommentForm.value)">
<textarea (keydown.enter)="$event.preventDefault()" type="text" placeholder="Leave a comment..." name="description" #description="ngModel" [(ngModel)]="comment.description"></textarea>
</form>
尝试一下
<button type="submit" class="btn btn-lg btn-info btn-block btnlog" [disabled]="loginForm.invalid" (click)="login()">Login</button>
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