ต้องการแปล php เป็น asp.net c# ครับ รบกวนช่วยหน่อยครับ

        <ajax:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" EnableScriptGlobalization="true" EnableScriptLocalization="true">
        </ajax:ToolkitScriptManager>

                                        <asp:TextBox ID="TextBoxSearch" runat="server" autocomplete="off"></asp:TextBox>
                                        <ajaxToolkit:AutoCompleteExtender ID="AutoCompleteExtender1" BehaviorID="AutoCompleteEx"
                                            runat="server" TargetControlID="TextBoxSearch" ServicePath="~/AutoComplete.asmx"
                                            ServiceMethod="GetAutoCompleteList" CompletionInterval="100" CompletionSetCount="12"
                                            DelimiterCharacters="" Enabled="true" EnableCaching="true" MinimumPrefixLength="1"
                                            CompletionListCssClass="autocomplete_completionListElement" CompletionListItemCssClass="autocomplete_listItem"
                                            CompletionListHighlightedItemCssClass="autocomplete_highlightedListItem" OnClientPopulated="autocomplete_Populated"
                                            OnClientItemSelected="autocomplete_Selected">
                                        </ajaxToolkit:AutoCompleteExtender>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Data;

using System.Web.SessionState;

/// <summary>
/// Summary description for AutoComplete
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class AutoComplete : System.Web.Services.WebService {

    public AutoComplete ()
    {

        //Uncomment the following line if using designed components 
        //InitializeComponent(); 
    }

    [WebMethod]
    public string[] GetAutoCompleteList(string prefixText, int count)
    {
        // ต้องนี้เป็น linq จะเปลี่ยนเป็น sql command ก็ได้ แก้ได้ตามสะดวก
        SqlServerDataContext sqlServer = new SqlServerDataContext();

        string keyWord = prefixText.Trim().Replace(" ", string.Empty);
        List<string> result = new List<string>();

        (from d in sqlServer.Data
         where d.Name.Contains(keyWord)
         orderby s.Name ascending
         select new
         {
             Name = d.Name
         }).ToList().ForEach(d => result.Add(d.Name));

        return result.Take(count).ToArray();
    }
}

    <script type="text/javascript">
        function autocomplete_Populated(sender, e) {
            if (sender._currentPrefix != null) {

                var list = sender.get_completionList();
                var search = sender._currentPrefix.replace(" ", "").toLowerCase();

                for (var i = 0; i < list.childNodes.length; i++) {
                    var text = list.childNodes[i].innerHTML;
                    var index = text.toLowerCase().indexOf(search);

                    if (index != -1) {
                        var value = text.substring(0, index);
                        value += '<span style="color: black;">';
                        value += text.substr(index, search.length);
                        value += '</span>';
                        value += text.substring(index + search.length);

                        list.childNodes[i].innerHTML = value;
                    }
                }
            }
        }

        function autocomplete_Selected(sender, e) {

            var SelectedText;
            // Check for IE - should really check for the availabbility of the property... if(e._item.innerText)
            if (document.all)
                SelectedText = e._item.innerText;
            else
                SelectedText = e._item.textContent;
            // Set the value of the textbox
            sender.get_element().value = SelectedText;

            // Get the value selected
            SelectedValue = e.get_value();
        }   
    </script>

/*AutoComplete flyout */

.autocomplete_completionListElement 
{  
	margin : 0px!important;
	background-color : inherit;
	color : windowtext;
	border : buttonshadow;
	border-width : 1px;
	border-style : solid;
	border-top: none;
	cursor : default;
	overflow : auto;
    text-align : left; 
    list-style-type : none;
    padding-left: 0px;
}

/* AutoComplete highlighted item */

.autocomplete_highlightedListItem
{
	background-color: #8dcff4;
	color: #808080;
	padding: 1px;
}

/* AutoComplete item */

.autocomplete_listItem 
{
	background-color : window;
	color: #808080;
	padding : 1px;
}
        
.ajax__tab_header 
{
    font-size: 12px;
    font-family: Tahoma, Sans-Serif;
}
        
/* Pager */
        
.pager:hover
{
    border: solid 2px #87CEEB;
    /* background-color: #FFFACD; */
}
        
.pager
{
    border: solid 2px #f0f0f0;            
}

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <link rel="stylesheet" type="text/css" href="http://localhost:3899/CSharp/StyleSheet.css" />
    <script type="text/javascript">
        function autocomplete_Populated(sender, e) {
            if (sender._currentPrefix != null) {

                var list = sender.get_completionList();
                var search = sender._currentPrefix.replace(" ", "").toLowerCase();

                for (var i = 0; i < list.childNodes.length; i++) {
                    var text = list.childNodes[i].innerHTML;
                    var index = text.toLowerCase().indexOf(search);

                    if (index != -1) {
                        var value = text.substring(0, index);
                        value += '<span style="color: black;">';
                        value += text.substr(index, search.length);
                        value += '</span>';
                        value += text.substring(index + search.length);

                        list.childNodes[i].innerHTML = value;
                    }
                }
            }
        }

        function autocomplete_Selected(sender, e) {

            var SelectedText;
            // Check for IE - should really check for the availabbility of the property... if(e._item.innerText)
            if (document.all)
                SelectedText = e._item.innerText;
            else
                SelectedText = e._item.textContent;
            // Set the value of the textbox
            sender.get_element().value = SelectedText;

            // Get the value selected
            SelectedValue = e.get_value();
        }   
</script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" EnableScriptGlobalization="true"
            EnableScriptLocalization="true">
        </asp:ToolkitScriptManager>
        <asp:TextBox ID="TextBoxSearch" runat="server" autocomplete="off"></asp:TextBox>
        <asp:AutoCompleteExtender ID="AutoCompleteExtender1" BehaviorID="AutoCompleteEx"
            runat="server" TargetControlID="TextBoxSearch" ServicePath="AutoComplete.asmx"
            ServiceMethod="GetAutoCompleteList" CompletionInterval="100" CompletionSetCount="12"
            DelimiterCharacters="" Enabled="true" EnableCaching="true" MinimumPrefixLength="1"
            CompletionListCssClass="autocomplete_completionListElement" CompletionListItemCssClass="autocomplete_listItem"
            CompletionListHighlightedItemCssClass="autocomplete_highlightedListItem" OnClientPopulated="autocomplete_Populated"
            OnClientItemSelected="autocomplete_Selected">
        </asp:AutoCompleteExtender>
    </div>
    </form>
</body>
</html>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Data;
using System.Web.SessionState;

/// <summary>
/// Summary description for AutoComplete
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class AutoComplete : System.Web.Services.WebService {

    public AutoComplete () {

        //Uncomment the following line if using designed components 
        //InitializeComponent(); 
    }

    [WebMethod]
    public string[] GetAutoCompleteList(string prefixText, int count)
    {
        // ต้องนี้เป็น linq จะเปลี่ยนเป็น sql command ก็ได้ แก้ได้ตามสะดวก
        dbsampleDataContext db = new dbsampleDataContext();

        string keyWord = prefixText.Trim().Replace(" ", string.Empty);
        List<string> result = new List<string>();

        (from d in db.Customers
         where d.CustomersName.Contains(keyWord)
         orderby d.CustomersName ascending
         select new
         {
             CustomersName = d.CustomersName
         }).ToList().ForEach(d => result.Add(d.CustomersName));

        return result.Take(count).ToArray();
    }    
}