typescript - display error message on form if the message is not empty angular 2 -

i have register form , wish display error message on form, in case went wrong.

in .ts file, have following code :-

onsubmit(email, password, name, surname, username, homephonenumber, mobilenumber){ this._userservice.register(email, password, name, surname, username, homephonenumber, mobilenumber)   .subscribe((result) => {     if (result.success == "true") {       //this._userservice.login(email, password);     }     else     {       this.errormessage = result.message;     } }); 

}

and in form have following:-

<div class="alert alert-danger" ng-if="{{errormessage}}"></div> 

this throwing error in console:-

can't bind 'ng-if' since isn't known property of 'div' 

how can error message display?

thanks , time.

ng-if angularjs syntax. angular 2 change :

<div class="alert alert-danger" *ngif="errormessage"></div> 

angular 2 template docs : link