Ajax AutoComplete Extender not working. Need help :( :(

Question

0.00/5 (No votes)

See more:

, +

I'm trying to get ajax autocomplete extender work through the code behind, and trying to match the pattern from a database. but it doesn't work. Kindly please tell me what mistake I'm making.. Thank you.. :)

C#

<ajaxToolkit:AutoCompleteExtender ServiceMethod="SearchCustomers"
    MinimumPrefixLength="2"
    CompletionInterval="100" EnableCaching="false" CompletionSetCount="10"
    TargetControlID="TextBox_Search"
    ID="AutoCompleteExtender1"  runat="server" FirstRowSelected = "false">
</ajaxToolkit:AutoCompleteExtender>

C#

<asp:TextBox ID="TextBox_Search" runat="server" Height="28px" Width="206px"></asp:TextBox>

C#

public partial class MasterPage_UserProfile : System.Web.UI.MasterPage
{
    [System.Web.Script.Services.ScriptMethod]
    [System.Web.Services.WebMethod]
    public static List<string> SearchCustomers(string prefixText, int count)
    {
        using (SqlConnection conn = new SqlConnection())
        {
            conn.ConnectionString = ConfigurationManager.ConnectionStrings["Ebazzar"].ConnectionString;
            using (SqlCommand cmd = new SqlCommand())
            {
                cmd.CommandText = "select pname from products where " +"pname like @SearchText + '%'";
                cmd.Parameters.AddWithValue("@SearchText", prefixText);
                cmd.Connection = conn;
                conn.Open();
                List<string> Products = new List<string>();
                using (SqlDataReader sdr = cmd.ExecuteReader())
                {
                    while (sdr.Read())
                    {
                        Products.Add(sdr["pname"].ToString());
                    }
                }
                conn.Close();
                return Products;
            }
        }
    }
}

Posted 11-May-14 16:05pm

J. Chatterjee

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

DamithSL · Answer 1 · 2014-05-11T16:19:00

C#

//return type should be a array 
[System.Web.Script.Services.ScriptMethod]
[System.Web.Services.WebMethod]
public static string[] SearchCustomers(string prefixText, int count)
{
    using (SqlConnection conn = new SqlConnection())
    {
        conn.ConnectionString = ConfigurationManager.ConnectionStrings["Ebazzar"].ConnectionString;
        using (SqlCommand cmd = new SqlCommand())
        {
            //create parameter like below
            cmd.CommandText = "select pname from products where pname like @SearchText";
            //set the parameter values as below
            cmd.Parameters.AddWithValue("@SearchText", prefixText + "%");
            cmd.Connection = conn;
            conn.Open();
            List<string> Products = new List<string>();
            using (SqlDataReader sdr = cmd.ExecuteReader())
            {
                while (sdr.Read())
                {
                    Products.Add(sdr["pname"].ToString());
                }
            }
            conn.Close();
            return Products.ToArray();
        }
    }
}