ng2-select not working when I get data from api and cast it in initData

I use two ng2-select in one form. I retrieve data from api and set into the array but it not working correctly. bellow is my code. when I hard code it is working fine.

.Ts

`[import { Component, OnInit } from '@angular/core'; import { Router, ActivatedRoute } from '@angular/router'; import { InviteUserComponent } from './invite-user.component'; import { UserListComponent } from './user-list.component'; import { SimpleNotificationsComponent } from 'angular2-notifications'; import { AuthorizeUserDirective } from '../../directives/authorize-user.directive'; import { UserService} from '../../services/user.service'; import {Observable} from 'rxjs/Observable'; import { AuthService } from '../../services/auth/auth.service'; import {SELECT_DIRECTIVES} from 'ng2-select';

@Component({ selector: 'users-edit', templateUrl: '../../app/components/user/user-edit.html', directives: [SELECT_DIRECTIVES] }) export class UserEditComponent implements OnInit{ private isAdmin: Boolean = false; private _data: Observable<any[]>; private fname: string; private id: number; private lname: string; private email: string; private _roles: Observable<any[]>; public roles: any = []; public groups: any = ['Group 1', 'Group 2', 'Group 3', 'Group 4', 'Group 5']; private initRoleData: Array[]=[]; private _disabledV: string = '0'; private disabled: boolean = false; private get disabledV(): string { return this._disabledV; }

private set disabledV(value: string) {
    this._disabledV = value;
    this.disabled = this._disabledV === '1';
}

public selected(value: any): void {
    console.log('Selected value is: ', value);
}

public removed(value: any): void {
    console.log('Removed value is: ', value);
}

public refreshValue(value: any): void {
    this.initRoleData = value;
}

constructor(private router: Router,
    private userService: UserService,
    private route: ActivatedRoute,
    private authService: AuthService) {

    this.isCurrentUserAdmin();
    this.route.params.subscribe(params => {
        this.id = +params['id'];
    });
}

private isCurrentUserAdmin() {
    this.userService.isCurrentUserAdmin(this.authService.getUserName())
        .subscribe(data => {
            this.isAdmin = Boolean(data);
        },
        error => {
            console.log("error while retriving admin");
            console.log(error);
            this.userService.handleError(error);
        });
}

ngOnInit() {
    this.userService.getUser(this.id)
        .subscribe(data => {
            this.fname = data.FirstName;
            this.lname = data.LastName;
            this.email = data.Email;
        });
    this.userService.getUserRolesById(this.id)
        .subscribe(data => {
            data.forEach(role => {
                this.initRoleData.push(role.Name);             
            });
        });
    console.log(this.initRoleData);
    this.userService.getAllRoles()
        .subscribe(data => {
            data.forEach(role => {
                this.roles.push(role.Name);
            });
        });
    console.log(this.roles);
}

Submit(form: any)
{
    alert(form);

}

}](url)`

Html

    <form id="sky-form4" class="sky-form" (ngSubmit)="Submit(userEdit)" #userEdit="ngForm">
        <header>Edit User Account</header>

        <fieldset>
            <section>
                <label class="input">
                    <i class="icon-append fa fa-user"></i>
                    <input type="text" name="username" placeholder="First Name" required [value]="fname">
                    <b class="tooltip tooltip-bottom-right">Enter First Name</b>
                </label>
            </section>

            <section>
                <label class="input">
                    <i class="icon-append fa fa-user"></i>
                    <input type="text" name="username" placeholder="Last Name" [value]="lname">
                    <b class="tooltip tooltip-bottom-right">Enter Last Name</b>
                </label>
            </section>

            <section>
                <label class="input">
                    <i class="icon-append fa fa-envelope"></i>
                    <input type="email" name="email" placeholder="Email address" [value]="email">
                    <b class="tooltip tooltip-bottom-right">Enter Email Address</b>
                </label>
            </section>

            <section>
                <label>
                    Roles
                </label>
                <div>
                    <ng-select [initData]="initRolesData"
                               [multiple]="true"
                               [items]="roles"
                               [disabled]="disabled"
                               (data)="refreshValue($event)"
                               (selected)="selected($event)"
                               (removed)="removed($event)"
                               placeholder="No roles assign">
                    </ng-select>
                </div>
            </section>

            <section>
                <label>
                    Groups
                </label>
                <div>
                    <ng-select 
                               [multiple]="true"
                               [items]="groups"
                               [disabled]="disabled"
                               (data)="refreshValue($event)"
                               (selected)="selected($event)"
                               (removed)="removed($event)"
                               placeholder="No groups assign">
                    </ng-select>
                </div>
            </section>
        </fieldset>
        <footer>
            <button type="reset" class="btn-u">Cancel</button>
            <button type="submit" class="btn-u" [disabled]="!userEdit.form.valid">Save</button>
        </footer>
    </form>
    <!-- End Reg-Form -->
</div>`

valor-software / ng2-select

ng2-select not working when I get data from api and cast it in initData #420

.Ts

Html