import { Component } from '@angular/core';

import { data } from './data' ;

@Component({
  selector: 'my-app',
  templateUrl: 'app/app.template.html'
})
export class AppComponent {
  data1 = JSON.parse(JSON.stringify(data));
  data2 = JSON.parse(JSON.stringify(data));
  data3 = JSON.parse(JSON.stringify(data));
}
import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule }    from '@angular/forms';
import { HttpModule }    from '@angular/http';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

import { AppComponent }   from './app.component';

// Import PrimeNG modules
import {AccordionModule} from 'primeng/primeng';
import {AutoCompleteModule} from 'primeng/primeng';
import {BreadcrumbModule} from 'primeng/primeng';
import {ButtonModule} from 'primeng/primeng';
import {CalendarModule} from 'primeng/primeng';
import {CarouselModule} from 'primeng/primeng';
import {ChartModule} from 'primeng/primeng';
import {CheckboxModule} from 'primeng/primeng';
import {ChipsModule} from 'primeng/primeng';
import {CodeHighlighterModule} from 'primeng/primeng';
import {ConfirmDialogModule} from 'primeng/primeng';
import {SharedModule} from 'primeng/primeng';
import {ContextMenuModule} from 'primeng/primeng';
import {DataGridModule} from 'primeng/primeng';
import {DataListModule} from 'primeng/primeng';
import {DataScrollerModule} from 'primeng/primeng';
import {DataTableModule} from 'primeng/primeng';
import {DialogModule} from 'primeng/primeng';
import {DragDropModule} from 'primeng/primeng';
import {DropdownModule} from 'primeng/primeng';
import {EditorModule} from 'primeng/primeng';
import {FieldsetModule} from 'primeng/primeng';
import {FileUploadModule} from 'primeng/primeng';
import {GalleriaModule} from 'primeng/primeng';
import {GMapModule} from 'primeng/primeng';
import {GrowlModule} from 'primeng/primeng';
import {InputMaskModule} from 'primeng/primeng';
import {InputSwitchModule} from 'primeng/primeng';
import {InputTextModule} from 'primeng/primeng';
import {InputTextareaModule} from 'primeng/primeng';
import {LightboxModule} from 'primeng/primeng';
import {ListboxModule} from 'primeng/primeng';
import {MegaMenuModule} from 'primeng/primeng';
import {MenuModule} from 'primeng/primeng';
import {MenubarModule} from 'primeng/primeng';
import {MessagesModule} from 'primeng/primeng';
import {MultiSelectModule} from 'primeng/primeng';
import {OrderListModule} from 'primeng/primeng';
import {OverlayPanelModule} from 'primeng/primeng';
import {PaginatorModule} from 'primeng/primeng';
import {PanelModule} from 'primeng/primeng';
import {PanelMenuModule} from 'primeng/primeng';
import {PasswordModule} from 'primeng/primeng';
import {PickListModule} from 'primeng/primeng';
import {ProgressBarModule} from 'primeng/primeng';
import {RadioButtonModule} from 'primeng/primeng';
import {RatingModule} from 'primeng/primeng';
import {ScheduleModule} from 'primeng/primeng';
import {SelectButtonModule} from 'primeng/primeng';
import {SlideMenuModule} from 'primeng/primeng';
import {SliderModule} from 'primeng/primeng';
import {SpinnerModule} from 'primeng/primeng';
import {SplitButtonModule} from 'primeng/primeng';
import {StepsModule} from 'primeng/primeng';
import {TabMenuModule} from 'primeng/primeng';
import {TabViewModule} from 'primeng/primeng';
import {TerminalModule} from 'primeng/primeng';
import {TieredMenuModule} from 'primeng/primeng';
import {ToggleButtonModule} from 'primeng/primeng';
import {ToolbarModule} from 'primeng/primeng';
import {TooltipModule} from 'primeng/primeng';
import {TreeDragDropService} from 'primeng/primeng';
import {TreeModule} from 'primeng/primeng';
import {TreeTableModule} from 'primeng/primeng';

@NgModule({
  imports: [ 
    BrowserModule, 
    FormsModule,
    ReactiveFormsModule,
    BrowserAnimationsModule,
    AccordionModule,
    AutoCompleteModule,
    BreadcrumbModule,
    ButtonModule,
    CalendarModule,
    CarouselModule,
    ChartModule,
    CheckboxModule,
    ChipsModule,
    CodeHighlighterModule,
    ConfirmDialogModule,
    SharedModule,
    ContextMenuModule,
    DataGridModule,
    DataListModule,
    DataScrollerModule,
    DataTableModule,
    DialogModule,
    DragDropModule,
    DropdownModule,
    EditorModule,
    FieldsetModule,
    FileUploadModule,
    GalleriaModule,
    GMapModule,
    GrowlModule,
    InputMaskModule,
    InputSwitchModule,
    InputTextModule,
    InputTextareaModule,
    LightboxModule,
    ListboxModule,
    MegaMenuModule,
    MenuModule,
    MenubarModule,
    MessagesModule,
    MultiSelectModule,
    OrderListModule,
    OverlayPanelModule,
    PaginatorModule,
    PanelModule,
    PanelMenuModule,
    PasswordModule,
    PickListModule,
    ProgressBarModule,
    RadioButtonModule,
    RatingModule,
    ScheduleModule,
    SelectButtonModule,
    SlideMenuModule,
    SliderModule,
    SpinnerModule,
    SplitButtonModule,
    StepsModule,
    TabMenuModule,
    TabViewModule,
    TerminalModule,
    TieredMenuModule,
    ToggleButtonModule,
    ToolbarModule,
    TooltipModule,
    TreeModule,
    TreeTableModule
  ],
  providers: [
    TreeDragDropService,
  ],
  declarations: [ AppComponent ],
  bootstrap:    [ AppComponent ]
})

export class AppModule { }


/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app.module';

const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);
body {
  padding: 2em;
  font-family: Arial, Helvetica, sans-serif;
}
<!DOCTYPE html>
<html>
  <head>
    <title>Angular QuickStart</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="styles.css">
    
    <!-- PrimeNG style dependencies -->
    <link rel="stylesheet" href="https://unpkg.com/primeng@4.1.0-rc.2/resources/themes/omega/theme.css" />
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" />
    <link rel="stylesheet" href="https://unpkg.com/primeng@4.1.0-rc.2/resources/primeng.min.css" />

    <!-- 1. Load libraries -->
    <!-- Polyfill for older browsers -->
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>

    <script src="https://unpkg.com/zone.js@0.8.4?main=browser"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.8"></script>
    <script src="https://unpkg.com/systemjs@0.19.39/dist/system.src.js"></script>

    <!-- 2. Configure SystemJS -->
    <script src="systemjs.config.js"></script>
    
  </head>

  <!-- 3. Display the application -->
  <body>
    <my-app>Loading...</my-app>
  </body>
</html>


<!-- 
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->
/**
 * WEB ANGULAR VERSION
 * (based on systemjs.config.js in angular.io)
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      // Copy of compiler options in standard tsconfig.json
      "target": "es5",
      "module": "commonjs",
      "moduleResolution": "node",
      "sourceMap": true,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "noImplicitAny": true,
      "suppressImplicitAnyIndexErrors": true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: {
      // paths serve as alias
      'npm:': 'https://unpkg.com/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',

     // angular bundles
      '@angular/animations': 'npm:@angular/animations@4.0.0/bundles/animations.umd.js',
      '@angular/animations/browser': 'npm:@angular/animations@4.0.0/bundles/animations-browser.umd.js',
      '@angular/core': 'npm:@angular/core@4.0.0/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common@4.0.0/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler@4.0.0/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser@4.0.0/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@4.0.0/bundles/platform-browser-dynamic.umd.js',
      '@angular/platform-browser/animations': 'npm:@angular/platform-browser@4.0.0/bundles/platform-browser-animations.umd.js',
      '@angular/http': 'npm:@angular/http@4.0.0/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router@4.0.0/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms@4.0.0/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade@4.0.0/bundles/upgrade.umd.js',
      '@angular/upgrade/static': 'npm:@angular/upgrade@4.0.0/bundles/upgrade-static.umd.js',

      // other libraries
      'rxjs':                      'npm:rxjs',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
      'ts':                        'npm:plugin-typescript@4.0.10/lib/plugin.js',
      'typescript':                'npm:typescript@2.4.0/lib/typescript.js',
      'primeng':                   'npm:primeng@4.1.3'

    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.ts',
        defaultExtension: 'ts'
      },
      rxjs: {
        defaultExtension: 'js'
      },
      primeng: {
        defaultExtension: 'js'
      }
    }
  });

  if (!global.noBootstrap) { bootstrap(); }

  // Bootstrap the `AppModule`(skip the `app/main.ts` that normally does this)
  function bootstrap() {
    console.log('Auto-bootstrapping');

    // Stub out `app/main.ts` so System.import('app') doesn't fail if called in the index.html
    System.set(System.normalizeSync('app/main.ts'), System.newModule({ }));

    // bootstrap and launch the app (equivalent to standard main.ts)
    Promise.all([
      System.import('@angular/platform-browser-dynamic'),
      getAppModule()
    ])
    .then(function (imports) {
      var platform = imports[0];
      var app      = imports[1];
      platform.platformBrowserDynamic().bootstrapModule(app.AppModule);
    })
    .catch(function(err){ console.error(err); });
  }

  // Import AppModule or make the default AppModule if there isn't one
  // returns a promise for the AppModule
  function getAppModule() {
    if (global.noAppModule) {
      return makeAppModule();
    }
    return System.import('app/app.module').catch(makeAppModule)
  }

  function makeAppModule() {
    console.log('No AppModule; making a bare-bones, default AppModule');

    return Promise.all([
      System.import('@angular/core'),
      System.import('@angular/platform-browser'),
      System.import('app/app.component')
    ])
    .then(function (imports) {

      var core    = imports[0];
      var browser = imports[1];
      var appComp = imports[2].AppComponent;

      var AppModule = function() {}

      AppModule.annotations = [
        new core.NgModule({
          imports:      [ browser.BrowserModule ],
          declarations: [ appComp ],
          bootstrap:    [ appComp ]
        })
      ]
      return {AppModule: AppModule};
    })
  }
})(this);
<h1>Tree with drag'n'drop</h1>
<p>Works as expected</p>
<p-tree
  draggableNodes="true"
  droppableNodes="true"
  [value]="data1">
</p-tree>

<h1>Horizontal tree</h1>
<p>Only displays the first root node and its descendants</p>
<p-tree
  layout="horizontal"
  [value]="data2">
</p-tree>    

<h1>Horizontal tree with drag'n'drop</h1>
<p>Only displays the first root node and its descendants</p>
<p>Buggy connectors rendering</p>
<p>Drag'n'drop doesn't work</p>
<p-tree
  layout="horizontal"
  draggableNodes="true"
  droppableNodes="true"
  [value]="data3">
</p-tree>
# PrimeNG Issue Template
Please create a test case and attach the link of the plunkr to your github issue report.
export const data = [
  {
    label: 'Documents',
    data: 'Documents Folder',
    expandedIcon: 'fa-folder-open',
    collapsedIcon: 'fa-folder',
    children: [
      {
        label: 'Work',
        data: 'Work Folder',
        expandedIcon: 'fa-folder-open',
        collapsedIcon: 'fa-folder',
        children: [
          {
            label: 'Expenses.doc',
            icon: 'fa-file-word-o',
            data: 'Expenses Document'
          },
          {
            label: 'Resume.doc',
            icon: 'fa-file-word-o',
            data: 'Resume Document'
          }
        ]
      },
      {
        label: 'Home',
        data: 'Home Folder',
        expandedIcon: 'fa-folder-open',
        collapsedIcon: 'fa-folder',
        children: [
          {
            label: 'Invoices.txt',
            icon: 'fa-file-word-o',
            data: 'Invoices for this month'
          }
        ]
      }
    ]
  },
  {
    label: 'Pictures',
    data: 'Pictures Folder',
    expandedIcon: 'fa-folder-open',
    collapsedIcon: 'fa-folder',
    children: [
      {
        label: 'barcelona.jpg',
        icon: 'fa-file-image-o',
        data: 'Barcelona Photo'
      },
      {
        label: 'logo.jpg',
        icon: 'fa-file-image-o',
        data: 'PrimeFaces Logo'
      },
      {
        label: 'primeui.png',
        icon: 'fa-file-image-o',
        data: 'PrimeUI Logo'
      }
    ]
  },
  {
    label: 'Movies',
    data: 'Movies Folder',
    expandedIcon: 'fa-folder-open',
    collapsedIcon: 'fa-folder',
    children: [
      {
        label: 'Al Pacino',
        data: 'Pacino Movies',
        children: [
          {
            label: 'Scarface',
            icon: 'fa-file-video-o',
            data: 'Scarface Movie'
          },
          {
            label: 'Serpico',
            icon: 'fa-file-video-o',
            data: 'Serpico Movie'
          }
        ]
      },
      {
        label: 'Robert De Niro',
        data: 'De Niro Movies',
        children: [
          {
            label: 'Goodfellas',
            icon: 'fa-file-video-o',
            data: 'Goodfellas Movie'
          },
          {
            label: 'Untouchables',
            icon: 'fa-file-video-o',
            data: 'Untouchables Movie'
          }
        ]
      }
    ]
  }
];