dataValueField String(default: "")

The field of the data item that provides the value of the widget.

Important When dataValueField is defined, the dataTextField option also should be set.

Example - set the dataValueField

<select id="multiselect" multiple="multiple">
    <option>Item1</option>
    <option>Item2</option>
</select>
<script>
$("#multiselect").kendoMultiSelect({
    dataSource: [
        { Name: "Parent1", Id: 1 },
        { Name: "Parent2", Id: 2 }
    ],
    dataTextField: "Name",
    dataValueField: "Id"
});
</script>