How to display orginal cell value in cell template `<span>` tag in angular 2 kendo ui grid.

**Code**

```
<ng-container ngFor="let col of grid.ColModel">
    <kendo-grid-column [title]="col.Label" [field]="col.Name" [locked]="col.Locked" width="250px" *ngIf="hiddenColumns.indexOf(col.Name) === -1" >
        <template kendoCellTemplate let-dataItem let-rowIndex="rowIndex" >
        <span (dblclick)="open(rowIndex)">**{{dataItem}}** </span>
        </template>
    </kendo-grid-column>
</ng-container>

```