Before Implement This Example First Create One Table Leader in your SQL Database like as Shown Below
CREATE TABLE Leader(
[LeaderId] [int] IDENTITY(1,1)Primary Key NOT NULL,
[Leader_Name] [nvarchar](150) NULL,
[State] [nvarchar](150) NULL,
[Lok_Sabha_Place] [nvarchar](150) NULL
)
Once we design table in our Database insert some data in
your table to use it in our application that would be like as shown below
Now open your aspx page and write the code like as shown
below
<%@ Page Language="C#"
AutoEventWireup="true"
CodeFile="AutocompleteTextbox
.aspx.cs" Inherits="AutocompleteTextbox_" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Bootstrap Autocomplete Textbox Example in Asp.net
Using C#</title>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<link rel = "Stylesheet"
href = "https://twitter.github.io/typeahead.js/css/examples.css"></link>
<script type="text/javascript">
$(function () {
$('#txtSearch').keyup(function
() {
$.ajax({
url: "AutocompleteTextbox
.aspx/GetAutoCompleteData",
data: "{'username':'" + $('#txtSearch').val() + "'}",
dataType: "json",
type: "POST",
contentType: "application/json;
charset=utf-8",
success: function (data) {
var val = '<ul
id="userlist">';
$.map(data.d, function (item) {
var itemval = item.split('/')[0];
val += '<li class=tt-suggestion>' + itemval + '</li>'
})
val += '</ul>'
$('#divautocomplete').show();
$('#divautocomplete').html(val);
$('#userlist li').click(function () {
$('#txtSearch').val($(this).text());
$('#divautocomplete').hide();
})
},
error: function (response) {
alert(response.responseText);
}
});
})
$(document).mouseup(function (e) {
var closediv = $("#divautocomplete");
if (closediv.has(e.target).length == 0) {
closediv.hide();
}
});
});
</script>
<style type="text/css">
ul li
{
list-style: none;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div style="position: absolute;left: 30%; z-index: 100; text-align:left;">
<asp:TextBox ID="txtSearch"
runat="server"
class="typeahead"
placeholder="Type
Leader Name to search" autocomplete="off" ></asp:TextBox>
<div id="divautocomplete" class="tt-menu" style="display:none">
</div>
</div>
</form>
</body>
</html>
Now add following namespaces in code behind
using System;
using System.Collections.Generic;
using System.Web.Services;
using System.Data.SqlClient;
using System.Configuration;
After completion of adding namespaces you need to write the
code like as shown below
using System;
using System.Collections.Generic;
using System.Web.Services;
using System.Data.SqlClient;
using System.Configuration;
public partial class AutocompleteTextbox_
: System.Web.UI.Page
{
//SqlConnection con = new
SqlConnection(ConfigurationManager.ConnectionStrings["conn"].ConnectionString);
protected void
Page_Load(object sender, EventArgs e)
{
}
[WebMethod]
public static List<string>
GetAutoCompleteData(string username)
{
List<string>
result = new List<string>();
using (SqlConnection
con = new SqlConnection("Data Source=lENOVO-pC;Initial
Catalog=Digital_Politices;Integrated Security=True"))
{
using (SqlCommand
cmd = new SqlCommand("select LeaderId,Leader_Name from Leader where
Leader_Name LIKE '%'+@SearchText+'%'",con))
{
con.Open();
cmd.Parameters.AddWithValue("@SearchText",
username);
SqlDataReader dr =
cmd.ExecuteReader();
while (dr.Read())
{
result.Add(string.Format("{0}/{1}", dr["Leader_Name"],
dr["LeaderId"]));
}
return result;
}
}
}
}
DEMO
