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

Question

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)
);
}
}

Answer 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(