The getters/setters from the kendo comboBox are part of the kendoComboBox 'class'.
You can use this.value() or this.text() depending on what you need.
$("#_FeeScheme_Input").kendoComboBox({
minLength: 1,
filter: 'contains',
dataTextField: "FeeSchemeDescription",
dataValueField: "FeeSchemeID",
dataSource: {
type: "json",
serverFiltering: false,
transport: {
read: "/Qualification/GetAllFeeScheme_JSON"
},
},
change: function(){
alert("value " + this.value());
}
});