Autocomplete textbox not working Asp.net

Question

Web service Code

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Services;

using System.Data.SqlClient;

using System.Configuration;

using System.Web.Script.Services;

namespace Product

{

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

[System.ComponentModel.ToolboxItem(false)]

public class CustService : System.Web.Services.WebService

{

[WebMethod]

[ScriptMethod(ResponseFormat = ResponseFormat.Json)]

public List<string> GetAutoCompleteData(string name)

{

List<string> result = new List<string>();

using (SqlConnection con = new SqlConnection(@"Data Source=KARUKUVELRAJ-PC\SQLEXPRESS;Initial Catalog=Product;Integrated Security=True"))

{

using (SqlCommand cmd = new SqlCommand("select DISTINCT name from customer where name LIKE '%'+@SearchText+'%'", con))

{

con.Open();

cmd.Parameters.AddWithValue("@SearchText", name);

SqlDataReader dr = cmd.ExecuteReader();

while (dr.Read())

{

result.Add(dr["name"].ToString());

}

return result;

}

}

}

}

}

 

 

Form.aspx.cs Code 

 

<script type="text/javascript" src='https://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.8.3.min.js'></script>

<script type="text/javascript" src='https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.3/js/bootstrap.min.js'></script>

<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.4/themes/ui-lightness/jquery-ui.css"/>

 

<script language="javascript" type="text/javascript">

$(function () {

$('#<%=txtName.ClientID%>').autocomplete({

source: function (request, response) {

$.ajax({

url: "CustService.asmx/GetAutoComplete",

data: "{ 'name':'" + request.term + "'}",

dataType: "json",

type: "POST",

contentType: "application/json; charset=utf-8",

success: function (result) {

response(result.d);

},

error: function (result) {

alert('Error Occure');

}

});

}

});

});

</script>

 

<asp:TextBox ID="txtName" runat="server" Font-Bold="False" CssClass="form-control"></asp:TextBox>