Hello Valliappan,

Additionally I’d like to let you know that with our latest SR for 15.2 we support MVC6 RC1 version.

You can find the attached sample for your reference. In order to run it you'll need to add references to the DNX 4.5.1 and DNX Core 5.0 versions of the Infragistics.Web.Mvc dll, which you can find in the installation directory of the product under {InstallDir}\2015.2\Ignite UI\MVC\MVC6\Bin

Let me know if you have any questions. 

Best Regards,

Maya Kirova

Infragistics, Inc.

http://ko.infragistics.com/support

http://jsfiddle.net/bezszjme/9/

Code snippet:

$("#singleSelectCombo").igCombo({
width: "270px",
dataSource: colors,
textKey: "Name",
valueKey: "Name",
dropDownOnFocus: true
});

$("#multiSelectCombo").igCombo({
width: "270px",
dataSource: colors,
textKey: "Name",
valueKey: "Name",
multiSelection: {
enabled: true
},
initialSelectedItems: [
{ index: 2 },
{ index: 4 }
]
});

$("#checkboxSelectCombo").igCombo({
width: "270px",
dataSource: colors,
textKey: "Name",
valueKey: "Name",
multiSelection: {
enabled: true,
showCheckboxes: true
}
});

// With 'index'
$("#singleSelectCombo").igCombo("index", 0);

// With 'value'
$("#multiSelectCombo").igCombo("value", [ "White", "Yellow"]);

//With 'select'
$("#checkboxSelectCombo").igCombo("select",
$.makeArray(
$("#multiSelectCombo").igCombo("itemsFromIndex", 0).element,
$("#multiSelectCombo").igCombo("itemsFromIndex", 1).element
), { }
);

// This is also a valid definition
//$("#checkboxSelectCombo").igCombo("select", $("#multiSelectCombo").igCombo("itemsFromIndex", 0).element.add($("#multiSelectCombo").igCombo("itemsFromIndex", 1).element), { });