Need to add configuration to display value which is combination of two or more properties or fields in dataSource. Just like valueTemplate in dropdownlist list but without html tags, like

$('#comboboxinput').kendoComboBox({
    dataSource:[{Name:"English (US)", Value:"en-US"}, {{Name:" Japanese (Japan)", Value:"ja-JP"}}],
    template:"<div>#=data.Name+' - '+data.Value#</div>"
    complexValueFormat:"data.Name+' - '+data.Value"
})

I was working on a project where I was asked to display large number of items on dropdown list so i was using template and valueTemplate confugurations, since the items was too large to scroll we decided to use combobox but the problem is unable to display complex values after selecting an item. Currently I'm looping through all items and adding a property DisplayName to each item before setting dataSource. This feature will be very useful and replace dropdownlist if dataSource is too large and complex value is to be displayed.