title: Telerik RadListView for Nativescript not showing up
body: <p>I have a problem displaying RadListView from Telerik UI for Nativescript free library. I implemented sample from Getting started guide: <a href="http://docs.telerik.com/devtools/nativescript-ui/Controls/NativeScript/ListView/getting-started" rel="nofollow noreferrer">http://docs.telerik.com/devtools/nativescript-ui/Controls/NativeScript/ListView/getting-started</a></p>
  
  <p>XML:</p>
  
  <pre><code>&lt;Page loaded="onPageLoaded" xmlns:lv="nativescript-telerik-ui/listview" xmlns="http://www.nativescript.org/tns.xsd"&gt;
      &lt;lv:RadListView items="{{ dataItems }}" &gt;
          &lt;lv:RadListView.listViewLayout&gt;
              &lt;lv:ListViewLinearLayout scrollDirection="Vertical"/&gt;
          &lt;/lv:RadListView.listViewLayout&gt;
          &lt;lv:RadListView.itemTemplate&gt;
              &lt;StackLayout orientation="vertical"&gt;
                  &lt;Label fontSize="20" text="{{ itemName }}"/&gt;
                  &lt;Label fontSize="14" text="{{ itemDescription }}"/&gt;
              &lt;/StackLayout&gt;
          &lt;/lv:RadListView.itemTemplate&gt;
      &lt;/lv:RadListView&gt;
  &lt;/Page&gt;
  </code></pre>
  
  <p>Code-behind:</p>
  
  <pre><code>import viewModel = require("./getting-started-model");
  export function onPageLoaded(args){
      var page = args.object;
      page.bindingContext = new viewModel.ViewModel();
  }
  </code></pre>
  
  <p>Model:</p>
  
  <pre><code>import {ObservableArray} from "data/observable-array";
  import timer = require("timer");
  
  export class ViewModel {
  
      private _items: ObservableArray&lt;DataItem&gt;;
      private _words = ["One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten"];
  
      constructor() {
      }
  
      get dataItems() {
          if (!this._items) {
              this._items = new ObservableArray&lt;DataItem&gt;();
  
              for (var i = 0; i &lt; 10; i++) {
                  this._items.push(new DataItem(i, "Item " + i, "This is item description."));
              }
          }
          return this._items;
      }
  
      private getRandomLengthString(){
          var sentenceLength = Math.round((Math.random() * 15));
          var result = this._words[0];
          for (var i = 0; i &lt; sentenceLength; i++){
              result += (this._words[i % this._words.length] + " ");
          }
          return result;
      }
  }
  
  export class DataItem {
      public id: number;
      public itemName;
      public itemDescription;
  
      constructor(id: number, name: string, description: string) {
          this.id = id;
          this.itemName = name;
          this.itemDescription = description;
      }
  }
  </code></pre>
  
  <p>But all I am getting is blank page .. I am using NS version 2.3.0</p>
  
  <p>What am I doing wrong?</p>