Angular 2 - Can't bind to 'controlGroup' since it isn't a know property of the 'div' element

Sigma6 picture Sigma6 · Jun 29, 2015 · Viewed 7.2k times · Source

I'm trying to build a small app using Angular2.0.0-alpha.28 (with corresponding .d.ts) + TypeScript 1.5.0-beta and I got the following message:

Can't bind to 'controlGroup' since it isn't a know property of the 'div' element and there are no matching directives with a corresponding property

index.html

<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Angular 2</title>

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.1/css/bootstrap.min.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.2.0/css/font-awesome.min.css" />
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:400,600" />

<script src="https://github.jspm.io/jmcriffey/[email protected]/traceur-runtime.js"></script>
<script src="https://jspm.io/[email protected]"></script>
<script src="https://code.angularjs.org/2.0.0-alpha.28/angular2.dev.js">    </script>
</head>
<body>

<radar>Loading...</radar>
<script>System.import('radar-view');</script>

</body>
</html>

radar-view.ts

/// <reference path="typings/angular2/angular2.d.ts" />
import {Component, View, bootstrap} from 'angular2/angular2';
import {FormBuilder, Validators, formDirectives, ControlGroup} from 'angular2/angular2';

@Component({
selector: 'radar',
appInjector: [FormBuilder]
})
@View({
template: '<div [control-group]="form"><input control="levels">    {{form.controls.levels.value}}</div>',
directives: [formDirectives]
})
export class RadarView {
form: ControlGroup;
builder: FormBuilder;

constructor(builder: FormBuilder) {
    this.builder = builder;
    this.form = builder.group({
        levels: ["5"]
    });
}
}

bootstrap(RadarView);

compiling

tsc --watch --target es5 --module commonjs --emitDecoratorMetadata

Also when I try to use validators.required it looks like it's not found either:

this.form = builder.group({
    levels: ["5", Validators.required]
});

Error:(21, 38) TS2339: Property 'required' does not exist on type 'typeof Validators'.

What's wrong with my code?

Answer

Sigma6 picture Sigma6 · Jun 30, 2015

Thanks to schmck Validators.required is actually not part of the regular angular2.d.ts v.2.0.0-alpha.28.

For this issue the solution is to add the following to angular2.d.ts:

class Validators {
    static required: any;
}

Also from Pawel Kozlowski (https://github.com/angular/angular/issues/2779), <div [control-group]="form"><input control="levels"> must be replaced by <div [ng-control-group]="form"><input ng-control="levels">. This still doesn't work as I get now No provider for ControlContainer! ($__0 -> ControlContainer).