JQuery Easyui binding Drop Box control get data from Database MVC controller pass the value past

This is in the OA system, need to use a small function, more general, because I was only contact Easyui soon, I hope the wrong place everyone point out, thank you

Easyui-combobox for Interface

<td><label for= "lab_con_id" > Service contract number:</label></td>
<td><input class= "Easyui-combobox" data-options= "Required:false" name= "lab_con_id" id= "lab_con_id" > </td>

Js

$ (function () {

Go to the background, query out the data, bind the data

Ajaxhelper ('/labcontract/select_conid ', ' GET ', null). Done (the function (DT) {

$ (' #lab_con_id '). Combox ({

DATA:DT;

Valuefield: ' Id ',

TextField: ' con_id '

})

});

})

Controller

Public Jsonresult Select_conid () {

Method of finding

List<contract> conlist=_ilabconttact. Getcontractid () as list<contract>;

Assigning values to the model pass to the interface

List<contractviewmodel> vm=new list<contractviewmodel> ();

Conlist. ForEach (item=>{

List<contractviewmodel> vmodel=new list<contractviewmodel> ();

Vmodel. Id=item. Id;

Vmodel. Con_id=item. con_id;

Vm. ADD (Vmodel);

})

Return Json{vm,jsonrequestbehavior.allowget}

}

JQuery Easyui binding Drop Box control get data from Database MVC controller pass the value past