Selection - C1 ASP.NET MVC

// This file locates: "Scripts/Lesson/C1FlexGrid/Selection.js".
c1.documentReady(function () {
    var theGrid = wijmo.Control.getControl('#theGrid');
    theGrid.selectionChanged.addHandler(function (s, e) {
        currSel.textContent = wijmo.format(
        '({row},{col})-({row2},{col2})',
        theGrid.selection);
    });
    theGrid.onSelectionChanged(); // initialize selection display
 
    // pick selectionMode
    var selectionMode = wijmo.Control.getControl('#selectionMode');
    selectionMode.textChanged.addHandler(function (s, e) {
        theGrid.selectionMode = selectionMode.text
    });
 
    // select first four cells in the grid
    document.getElementById('btnSelect').addEventListener('click', function () {
        theGrid.selection = new wijmo.grid.CellRange(0, 0, 1, 1);
    });
 
    // select rows 0, 2, and 4
    document.getElementById('btnListSelect').addEventListener('click', function () {
        selectionMode.text = 'ListBox';
        [0, 2, 4].forEach(function (index) {
            theGrid.rows[index].isSelected = true;
        })
    });
});

// This file locates: "Content/css/Lesson/C1FlexGrid/Selection.css".
 .wj-flexgrid {
  max-height: 250px; 
 }
 #currSel {
   font-weight: bold
 }

using System.Web.Mvc;
 
namespace LearnMvcClient.Controllers
{
    public partial class C1FlexGridController : Controller
    {
        // GET: Selection
        public ActionResult Selection()
        {
            return View(Models.FlexGridData.GetSales());
        }
    }
}

@model IEnumerable<FlexGridData.Sale>
 
<h1>
    @Html.Raw(Resources.C1FlexGrid.Selection_Title)
</h1>
<p>
    @Html.Raw(Resources.C1FlexGrid.Selection_Text1)
</p>
<p>
    @Html.Raw(Resources.C1FlexGrid.Selection_Text2)
</p>
@Html.C1().FlexGrid().Id("theGrid").Bind(Model).ShowAlternatingRows(false)
<label>
    @Html.Raw(Resources.C1FlexGrid.Selection_Text3)
    @Html.C1().ComboBox().Id("selectionMode").Bind(new[] {"None", "Cell", "CellRange", "Row", "RowRange", "ListBox" }).Text("CellRange")
</label>
 
<p></p>
<p>
    @Html.Raw(Resources.C1FlexGrid.Selection_Text4)
</p>
<p>
    <button id="btnSelect" class="btn btn-default">
        @Html.Raw(Resources.C1FlexGrid.Selection_Text5)
    </button>
</p>
<p>
    @Html.Raw(Resources.C1FlexGrid.Selection_Text6)
</p>
 
<p></p>
<p>
    @Html.Raw(Resources.C1FlexGrid.Selection_Text7)
</p>
<p>
    <button id="btnListSelect" class="btn btn-default">
        @Html.Raw(Resources.C1FlexGrid.Selection_Text8)
    </button>
</p>
 
<p></p>
<p>
    @Html.Raw(Resources.C1FlexGrid.Selection_Text9)
</p>