angular 2 on from submit error self.context.onSubmit is not a function

问题

I am using 2.0.0-rc.6 in my angular 2 application. on form submit I am getting this error - self.context.onSubmit is not a function

also it is appending form values in browser.

http://localhost:3000/register

on submit the page reloading and url become like this.

http://localhost:3000/register?firstName=vcvvc&lastName=vcv&userName=cvv&password=vcv&password=vcv

the codes are

form

<form class="ui form" (ngSubmit)="onSubmit()" #registrationForm="ngForm">
----
----
 <button type="submit" class="ui button"> Register</button>
    </form>

the service

import { Component } from '@angular/core';
import { User } from '../models/user';
import { RegisterService } from '../services/register.service';

@Component({
    selector: 'side-panel',
    templateUrl: 'app/components/register.component.html'
})
export class RegisterComponent { 

    newuser: User = new User();
    theText: string;

    constructor(private _registerService: RegisterService){ 
    }

    onsubmit(){
        console.log('form submit clicked..');
        this._registerService.sendUser(this.newuser).subscribe(
            date =>{
                this.newuser = new User();
            },
            error => console.log(error)
        );
    }
}

回答1:

This error occurs when the name of the methods called in an event not matched with the template declaration and inside the class

In your template you have specified onSubmit() as camel case

<form class="ui form" (ngSubmit)="**onSubmit()**" #registrationForm="ngForm">

but inside the class, its not a camelCase "onsubmit()"

 onsubmit(){
        console.log('form submit clicked..');
        this._registerService.sendUser(this.newuser).subscribe(

来源：https://stackoverflow.com/questions/39432192/angular-2-on-from-submit-error-self-context-onsubmit-is-not-a-function

标签

forms

angular

form-submit

onsubmit