kendo AutoComplete - Asp Net Page Method - Page method is not called

[Guna]

As a software engineer, just now i am learning the Kendo UI, to implement in our future project. 

If i call a page method from ajax ($.ajax), and create a data source, and supply that datasource to the kendo autocomplete, then it works fine.

But I am trying to connect to an Asp Net page method from within a datasource which is inside a kendo autocomplete. Because I am planning to extensively follow this approach in Grid paging, filtering and sorting etc.

But the page method is never called at all. Herewith I show the code.

Client Side:

var _rootUrl = '<%=string.Format("{0}{1}/", Request.Url.GetLeftPart(UriPartial.Authority), HttpRuntime.AppDomainAppVirtualPath)%>';
$(document).ready(function()
        {
            $("#TxtName").kendoAutoComplete(
            {
                minLength: 1,
                dataTextField: "Name",
                dataSource: 
                {
                    transport: 
                    {
                        read: 
                        {
                            type: "POST",
                            url: _rootUrl + "AutoComplete/Default7.aspx/GetEmployeesNames",
                            contentType: "application/json; charset=utf-8",
                            dataType: "json",
                            data: "{}"
                        }
                    },
                    schema: 
                    {
                        data: function(data) 
                        {
                            return JSON.parse(data.d);
                        }
                    }
                }
            });
        });

Server Side Asp Net Page Method:

    [System.Web.Services.WebMethod()]
    [System.Web.Script.Services.ScriptMethod()]
    public static string GetEmployeesNames()
    {
        string StrConnectionString = ConfigurationManager.ConnectionStrings["ConnectionStringEmployeesNormalized2"].ConnectionString;
        SqlConnection SqlConnection1 = new SqlConnection(StrConnectionString);
        SqlCommand SqlCommand1 = new SqlCommand("SELECT Id, Name FROM dbo.Employees ", SqlConnection1);

        DataTable DataTable1 = new DataTable();
        SqlDataAdapter SqlDataAdapter1 = new SqlDataAdapter(SqlCommand1);
        SqlDataAdapter1.Fill(DataTable1);

        List<Employee> List1 = new List<Employee>();
        foreach (DataRow DataRow1 in DataTable1.Rows)
        {
            List1.Add(new Employee(Convert.ToInt32(DataRow1["Id"]), Convert.ToString(DataRow1["Name"])));
        }

        string JsonText = (new JavaScriptSerializer()).Serialize(List1);

        HttpContext.Current.Response.ContentType = "application/json";
        return JsonText;
    }

Could you please help me?