Wijmo 5 | Select Multiple Rows using checkbox

Select rows without using boolean property from itemsSource

HTML

<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.input.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.min.js"></script>
<link rel="stylesheet" href="http://cdn.wijmo.com/5.latest/styles/wijmo.min.css">
<div id= "theGrid"></div>
<button id="getCheckedRows">
Toggle
</button>
<div id="rows">
Toggle row 2's selection: 
</div>

CSS

#theGrid{
	max-height:500px;
}

JavaScript

onload=function(){
   //create random data
	var getData = function (value) {
            var countries = 'India,Japan,UK,US,China'.split(','),
           data = [];
            for (var i = 0; i < value; i++) {
                data.push({
                    id: i + 1,
                    country: countries[i % countries.length],
                    sales: Math.random() * 10000,
                    downloads: Math.random() * 200,
                });
            }
			return data;
	};
	var cvData=new wijmo.collections.CollectionView(getData(5));
	var grid= new wijmo.grid.FlexGrid("#theGrid",{
		itemsSource:cvData,
    selectionMode: "ListBox"
	});
	
	// toggle row 2's selection
	document.getElementById("getCheckedRows").onclick=()=>{
  	grid.rows[2].isSelected=grid.rows[2].isSelected?false:true;
  }
	
}