Question

This is c# .net 2.0. I am using a masterpage.

• The WebService works fine on its own.
• I am completely stumped. When I type in the TextBox, nothing happens.

Files:

EditTicket.aspx AutoComplete.asmx App_Code/AutoComplete.cs

EditTicket.aspx:

        <%@ Register Assembly='AjaxControlToolkit' Namespace='AjaxControlToolkit' TagPrefix='cc2' %>           <asp:ScriptManager id='ScriptManager1' runat='server' EnablepageMethods='true'>         <Services>             <asp:ServiceReference Path='AutoComplete.asmx' />         </Services>         </asp:ScriptManager>      <cc2:AutoCompleteExtender          runat='server'           ID='AutoCompleteExtender1'           ServicePath='AutoComplete.asmx'           ServiceMethod='AutoComplete2'           MinimumPrefixLength='1'           CompletionSetCount='12'           TargetControlID='TextBox3'           EnableCaching='True' >      </cc2:AutoCompleteExtender>  <asp:TextBox ID='TextBox3' runat='server'></asp:TextBox> 

AutoComplete.asmx:

<%@ WebService Language='C#' CodeBehind='~/App_Code/AutoComplete.cs' Class='AutoComplete' %> 

AutoComplete.cs:

using System; using System.Web; using System.Collections; using System.Web.Services; using System.Web.Script.Services; using System.Web.Services.Protocols; using System.Collections.Generic; using System.Data.SqlClient; using System.Configuration; using System.Data;   /// <summary> /// Summary description for AutoComplete /// </summary> [WebService(Namespace = 'http://tempuri.org/')] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [ScriptService] public class AutoComplete : System.Web.Services.WebService {      public AutoComplete () {          //Uncomment the following line if using designed components          //InitializeComponent();      }      [WebMethod]     [ScriptMethod]     public string[] AutoComplete2(string prefixText,int count)     {         string conString = ConfigurationManager.ConnectionStrings['DB'].ConnectionString;         SqlConnection connection = new SqlConnection(conString);         connection.Open();         SqlParameter prm;         string sql = 'Select program_name FROM CM_Programs WHERE program_name LIKE @prefixText';         SqlDataAdapter cmd = new SqlDataAdapter(sql, connection);         prm = new SqlParameter('@prefixText', SqlDbType.VarChar, 50);         prm.Value = prefixText+ '%';         cmd.SelectCommand.Parameters.Add(prm);         DataTable dt = new DataTable();         cmd.Fill(dt);         string[] items = new string[dt.Rows.Count];         int i = 0;         foreach (DataRow dr in dt.Rows)         {             items.SetValue(dr['program_name'].ToString(),i);             i++;         }         connection.Close();         return items;     }  } 

Answer 1

‘Nothing happens’ is not an easy description to go on. When you say nothing happens, have you checked that

• The server code is being hit for the web service?
• Your query is being executed and returning results?
• Your items array is being populated correctly?

If ‘nothing’ is that none of the above is happening, I would start checking that there are no javascript errors on the page and that your AutoComplete extender is rendering correctly (examine the page controls in a trace).