Using Jquery AutoComplete to filter GridView data asp.net 2.0

I'm unable to use for the moment ajaxtoolkit (for 2.0), so I need to implement jquery autocomplete functionality to filter my gridview data (using solution described here
Using code attached, the interface does not generate list values (although the data source is ok - stringbuilder contains data) and I don't how to capture the user selected value, in order to filter my gridview (a webservice perhaps?)
In Firebug, GET is ok, but in GETs' XML tab there is an error:"XML Parsing Error: no element found Location: moz-nullprincipal:{f199a471-4b31-4838-be33-e3ab76de4cee} Line Number 1, Column 1:"

Thanks
aspx:
<asp:Content 
    ID="Content1" 
    ContentPlaceHolderID="head" 
    Runat="Server">    
    <link href="../CSS/Clienti.css" rel="stylesheet" type="text/css" />
    <link href="../CSS/jquery-ui-187custom.css" rel="stylesheet" type="text/css" />
    <link href="../CSS/jquery.autocomplete.css" rel="stylesheet" type="text/css" />
    <script src="../Scripts/jquery-144min.js" type="text/javascript"></script>
    <script src="../Scripts/jquery-ui-182custommin.js" type="text/javascript"></script>
    <script src="../Scripts/jquery.autocomplete.js" type="text/javascript"></script>
    <script type="text/javascript">
$(document).ready(function() {
$("#<%=txtSearch.ClientID%>").autocomplete('Baza.ashx');
        });          

<asp:TextBox ID="txtSearch" runat="server"></asp:TextBox>
----------------------------------------
aspx.cs:
using (sqlConn)
                {
                    using (SqlCommand cmd = new SqlCommand("prc_SearchCustomer"))
                    {
                        DataTable dt = new DataTable();
                        SqlDataAdapter da = new SqlDataAdapter();
                        da.SelectCommand = cmd;
                        cmd.CommandType = CommandType.StoredProcedure;
                        cmd.Parameters.AddWithValue("@SearchCriteria", "Nume companie");
                        cmd.Parameters.AddWithValue("@SearchString", "%");
                        cmd.Parameters.Add("@UserName", Session["UserName"].ToString());
                        cmd.Connection = sqlConn;
                        sqlConn.Open();
                        cmd.ExecuteReader();
                        sqlConn.Close();
                        da.Fill(dt);
                        //store table in Session
                        Session["BaseCustomerList"] = dt;
                        ResultsGridView.DataSource = dt;
                        ResultsGridView.DataBind();
                    }
                }
------------------------------------
ashx:
public class Baza : IHttpHandler, System.Web.SessionState.IRequiresSessionState
{
    
    public void ProcessRequest (HttpContext context) 
    {
        string searchText = context.Request.QueryString["q"];
        StringBuilder sb = new StringBuilder();
        if (HttpContext.Current.Session["BaseCustomerList"] != null)
        {
            DataTable dt = (DataTable)HttpContext.Current.Session["BaseCustomerList"];
            foreach (DataRow dr in dt.Select("Company_Name LIKE '" + searchText + "%'"))
            { 
            sb.Append(dr["Company_Name"])
                .Append(Environment.NewLine);
            }
        }
    }
 
    public bool IsReusable {
        get {
            return false;
        }
    }
}

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danielivanov2Asked:
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Gary DavisConnect With a Mentor Dir Internet SvcsCommented:
I looked at it again - your sb variable is built up but not returned to the caller of the ashx.

    public void ProcessRequest

You need to return this data in the format needed by the autocomplete.
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Gary DavisDir Internet SvcsCommented:
Usually, the XML Parse error is due to the Ajax request not returning xml and instead, returning an HTML error message. You say the GET is OK but verify the data returned. Go to the Ajax request from your browser to view the xml returned is as expected (view source if necessary) and not and error page.

Gary Davis
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danielivanov2Author Commented:
Params and Headers ok (status 200), Response: null
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danielivanov2Author Commented:
I'm trying to implement it as attached, but the error is:

Error      7      'Baza' does not implement interface member 'System.Web.IHttpHandler.ProcessRequest(System.Web.HttpContext)'. 'Baza.ProcessRequest(System.Web.HttpContext)' is either static, not public, or has the wrong return type.      

public string ProcessRequest (HttpContext context) 
    {
        string searchText = context.Request.QueryString["q"];
        StringBuilder sb = new StringBuilder();
        if (HttpContext.Current.Session["BaseCustomerList"] != null)
        {
            DataTable dt = (DataTable)HttpContext.Current.Session["BaseCustomerList"];
            foreach (DataRow dr in dt.Select("Company_Name LIKE '" + searchText + "%'"))
            { 
            sb.Append(dr["Company_Name"])
                .Append(Environment.NewLine);
            }
        }
        return sb.ToString();
    }

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danielivanov2Author Commented:
got it, it was missing "context.Response.Write(sb.ToString());"
now, after selecting an item from autocomplete list, how should I use it to filter the gridview?
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danielivanov2Author Commented:
I just need the jquery script/function that can pass the selected result to server, in order to filter the gridview's datatable source
0
 
danielivanov2Author Commented:
Feedback: Answers delayed for long time
0
 
danielivanov2Author Commented:
The answer for my last question was detalied here. Thanks anyway for the rest!
0
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