How to use ajax auto complete extender in asp.net?

Question

1.00/5 (2 votes)

See more:

I am trying to search data from database but enable to get the result.Please could any body help me.
thanx in advance

XML

<asp:TextBox ID="txtlicense" runat="server"></asp:TextBox>
 <ajax:AutoCompleteExtender ID="AutoCompleteExtender1" runat="server" TargetControlID="txtlicense"
 MinimumPrefixLength="1" EnableCaching="true" ServicePath="WebService.asmx"
  ServiceMethod="GetLicense" CompletionInterval="100"
  CompletionSetCount="10" >
  </ajax:AutoCompleteExtender>

XML

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

/// <summary>
/// Summary description for WebService
/// </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 WebService : System.Web.Services.WebService {

    public WebService () {

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

    [WebMethod]
    public List<string> GetLicense(string prefixText)
 {
     SqlConnection con = new SqlConnection("Data Source=.;Integrated Security=True;Initial Catalog=LicenseManagementSystem");
        con.Open();
        SqlCommand cmd = new SqlCommand("select LicenseNumber from LicenseDetails where LicenseNumber like @license+'%'", con);
        cmd.Parameters.AddWithValue("@license", prefixText);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        List<string> license = new List<string>();
        for (int i = 0; i < dt.Rows.Count; i++)
        {
            license.Add(dt.Rows[i][1].ToString());
        }
        return license;
    }
}

Posted 23-Dec-13 23:05pm

Md.Ashraf Ali

Updated 28-Aug-18 20:10pm

Add a Solution

2 solutions

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)

Siva Hyderabad · Answer 1 · 2013-12-23T23:12:00

Solution 1

http://www.aspdotnet-suresh.com/2011/05/ajax-autocompleteextender-sample.html[^]

Posted 23-Dec-13 23:12pm

Siva Hyderabad

Comments

Md.Ashraf Ali 24-Dec-13 5:37am

Actually its working fine in another .aspx page but the same thing i want to use then nothing happens?

JIYAUL MUSTAPHA · Answer 2 · 2018-08-28T20:11:00

/*Code for autocomlete extender to fill textbox*/

/*Web method for getting our result from database*/
[WebMethod]
public string[] GetCompletionList(string prefixText, int count)
{

//ADO.Net
SqlConnection cn = new SqlConnection();
DataSet ds = new DataSet();
DataTable dt = new DataTable();

String strCn = "Data Source=db;Initial Catalog=dbb;User ID=sa;Password=dd@123";
cn.ConnectionString = strCn;
SqlCommand cmd = new SqlCommand();
cmd.Connection = cn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select Name from tbl_EmpMaster WHERE (Name LIKE '%' + @myParameter + '%') AND (IsActive=1)";
cmd.Parameters.AddWithValue("@myParameter", prefixText);
try
{
cn.Open();
cmd.ExecuteNonQuery();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
}
catch (Exception ex)
{

return 0;
}
finally
{
cn.Close();
}
dt = ds.Tables[0];

//Then return List of string(txtItems) as result
List<string> txtItems = new List<string>();
String dbValues;

foreach (DataRow row in dt.Rows)
{
//String From DataBase(dbValues)
dbValues = row["Name"].ToString();
//dbValues = dbValues();
txtItems.Add(dbValues);

}
return txtItems.ToArray();

}

/*Aspx page code*/

Search Name:
asp:TextBox ID="txtSearchname" runat="server" class="form-control input-sm m-bot15"
OnTextChanged="txtSearchname_TextChanged" AutoPostBack="true" Font-Bold="true"

asp:AutoCompleteExtender runat="server" BehaviorID="AutoCompleteEx1" ID="autoComplete1"
TargetControlID="txtSearchname" ServicePath="../AutoCompleteText.asmx"
ServiceMethod="GetCompletionList" MinimumPrefixLength="1" CompletionInterval="100"
EnableCaching="true" CompletionSetCount="10" CompletionListCssClass="autocomplete_completionListElement "
CompletionListItemCssClass="autocomplete_listItem" CompletionListHighlightedItemCssClass="autocomplete_highlightedListItem"
ShowOnlyCurrentWordInCompletionListItem="true"