Search Suggestion Box from MULTIPLE TABLE(Like Google Search) Using Ajax AutoCompleteExtender in Asp.Net C#

Search Suggestion Box from Multiple Table Using AJAX

The script will use a TextBox to search through a  instantly to return results Alphabetically without reloading the page. Every typed letter will update the results.

 Auto Suggestion Box Master Page
 Auto Suggestion Box Multiple Table Search
 Auto Suggestion Ajax AutoCompleteExtender
 Auto Complete Search For WINDOW APPLICATION

            Show Result From "Multiple Tables" 

DownloadAjax .DLL File From below Link


   Html Coding

<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>

<!DOCTYPE html>

<html xmlns="">
<head id="Head1" runat="server">
    <form id="form1" runat="server">
        <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
         <asp:TextBox ID="txtCourse" runat="server"></asp:TextBox>
            <asp:AutoCompleteExtender ID="AutoCompleteExtender2" runat="server"
             ServiceMethod ="CourseDetail"



C# Coding

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

/// <summary>
/// Summary description for Course
/// </summary>

[WebService(Namespace = "")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.


public class Course : System.Web.Services.WebService

    public Course()

        //Uncomment the following line if using designed components

    public List<string> CourseDetail(string prefixText)
        System.Data.SqlClient.SqlConnection con = new System.Data.SqlClient.SqlConnection


        System.Data.SqlClient.SqlCommand cmd1 = new System.Data.SqlClient.SqlCommand
            ("select * from coursename where name like @name+'%'", con);

        System.Data.SqlClient.SqlCommand cmd2 = new System.Data.SqlClient.SqlCommand
    ("select * from reg where name like @name+'%'", con);

        System.Data.SqlClient.SqlCommand cmd3 = new System.Data.SqlClient.SqlCommand
    ("select * from register where name like @name+'%'", con);

        cmd1.Parameters.AddWithValue("@name", prefixText);

        cmd2.Parameters.AddWithValue("@name", prefixText);

        cmd3.Parameters.AddWithValue("@name", prefixText);

        System.Data.SqlClient.SqlDataAdapter da1 = new System.Data.SqlClient.SqlDataAdapter(cmd1);

        System.Data.SqlClient.SqlDataAdapter da2 = new System.Data.SqlClient.SqlDataAdapter(cmd2);

        System.Data.SqlClient.SqlDataAdapter da3 = new System.Data.SqlClient.SqlDataAdapter(cmd3);

        System.Data.DataTable dt1 = new System.Data.DataTable();

        System.Data.DataTable dt2 = new System.Data.DataTable();

        System.Data.DataTable dt3 = new System.Data.DataTable();


        List<string> Course_names = new List<string>();

        for (int i = 0; i < dt1.Rows.Count; i++)
        for (int j = 0; j < dt2.Rows.Count; j++)
        for (int k = 0; k < dt3.Rows.Count; k++)

        return Course_names;


First  - Add  the New Web Form Name - Suggest.aspx

Next - Add the Ajax Tools - Right Click Tools - Select _ Choose Items 

Select  Browse Button - Add the Dll File -   AjaxControlToolKit.dll

Added the Ajax Tool in Toolbox

Next - Add TextBox & ToolKitScriptManager  from  ToolBox

Next - Add WebService -  Right Click Solution Explorer  - Add- Add NEw Item

Select - WebService - Change the Name - Course.asmx - Add

Show  Below Like That WebService Page

Next - Add the Table  Coursename & Common Field name

Next - Add the Table  reg & Common Field name

Next - Add the Table  register Common Field name

Next  - Write the Coding  to WebService  

name Field  Common for All Tables

Next - Go To Design form -  Select - Textbox - Add Extender - AutoCompleteExtender - OK

Added the AutoComplete Extender Tool  &  Add the Service Path & Service Method

Added the  Path & Method to the Textbox

Next - Add the ajax Tools TagPrefix="asp" or  if Choice

           Next - Add table field name = Active

           Next - Add table field name = Active Server

    Next - Add table field name = Active Server Page

Next -Run the Design Web Form(F5 Run)


All Three Table  Specified Field Related Word Display while Enter the Keyword



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