How to get datavaluefield of selected item in combobox ?

@(Html.Kendo().ComboBox()
            .Name("ddl" + @Model.objDllColl[i].MCLELDescription.Split(' ')   [0].ToString())  //@Model.objDllColl[i].MCLELDescription.Split(' ')[0].ToString()
                    .HtmlAttributes(new { style = "width: 200px;" })
                                    .Events(e =>{                                                                       e.Select("filterProducts1");//.Open("onOpen");                                                              }) 
            .DataValueField("MCLECECode")
            .DataTextField("MCLELDescription")
				 .DataSource(source =>{
                                                                               source.Read(read =>                                                                              {                                                                                   read.Action("_Cluster", "Cluster", new { area = "" })                                                                            .Data("filterProducts");})                                                                               .ServerFiltering(true);})                                        
                    .AutoBind(true)
                    .ToClientTemplate()
        )

 function filterProducts1(e) {
         debugger
         alert('ertera')
         var CEDCode = this.dataItem(e.item.index()).ValueField; //this.dataItem(e.item.index()).ValueField
         alert(CEDCode)
        
     }