title: change kendo grid row color conditionally using Angular ngClass or ngStyle does not work
body: <p>Im using a Kendo detailed view Grid,in one my detail view data there is row which i want to be highlighted if the value meets my condition,i tried the following but i cant achieve it
  here is my main grid component,</p>
  
  <pre><code>  &lt;div *kendoGridDetailTemplate="let dataSource"&gt;
    &lt;app-category-details&gt;
    &lt;/app-category-details&gt;
     &lt;/div&gt;
  </code></pre>
  
  <p>app-category-detail is the detail component which is :</p>
  
  <pre><code> template: `
        &lt;kendo-grid
        [data]="dataSource"      
        scrollable="none"
        [navigable]="true"
        kendoGridFocusable&gt;
       &lt;kendo-grid-column field="deviceIP" title="Device IP"&gt;
       &lt;/kendo-grid-column&gt;
       &lt;kendo-grid-column field="comments" title="Comments"  [ngClass]="dataSource==='VPN Gateway' ? 'positive':'positive'" &gt;
       &lt;/kendo-grid-column&gt;
       &lt;/kendo-grid&gt;
  </code></pre>
  
  <p>my condition is dataSource==='VPN Gateway' but this code does not give any error and does not change anything also, seems i can't use dataSource directly there,and if i use dataSource.comments it gives me the error that cant get the comments value of unknown.positive is a css class to change back ground.</p>