<input type="button" value="View" data-bind="enable: selectedItemCount > 0"></input>

<div id="sandBox" class="example" style="height: 300px; width: 600px;"
     data-bind="koGrid: { data: myObsArray, selectedItems: selected }">
</div>

<div id="sandBox" class="example" style="height: 300px; width: 600px;"
     data-bind="koGrid: { data: myObsArray, selectedItem: selected }">
</div>