AutoCompelete using Ajax in Asp.net
Ajax a powerfull script on the web,It provides you a lot more functionality to
improve your application Performance.
Heres the article to show how to work with AutoCompleteExtender (Control in AjaxControlToolKIt).
AutoComplete Description
This means that the control will fetch the data from a webservice(sdsd), and it can be attached to a asp.net TextBox control.
Whenever users starts typing in the textbox, it automatically fetches a suggestion list from the configured webservice.
Note: Add latest Ajax dll in your application bin folder.
Step 1: Add webservices (WebService.asmx)
code: appcode/WebService.cs
Step 2: AC.aspx page:
Ajax a powerfull script on the web,It provides you a lot more functionality to
improve your application Performance.
Heres the article to show how to work with AutoCompleteExtender (Control in AjaxControlToolKIt).
AutoComplete Description
- AutoComplete is an ASP.NET AJAX extender that can be attached to any TextBox control,
and will associate that control with a popup panel to display words that
begin with the prefix typed into the textbox. - The dropdown with candidate words supplied by a web service is
positioned on the bottom left of the text box.
This means that the control will fetch the data from a webservice(sdsd), and it can be attached to a asp.net TextBox control.
Whenever users starts typing in the textbox, it automatically fetches a suggestion list from the configured webservice.
Note: Add latest Ajax dll in your application bin folder.
Step 1: Add webservices (WebService.asmx)
code: appcode/WebService.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Collections;
/// Summary description for WebService
[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 string[] GetNames(string prefixText, int count, string contextKey)
{
ArrayList sampleList = new ArrayList();
sampleList.Add("ABC"); sampleList.Add("Hello");
sampleList.Add("Hi"); sampleList.Add("Apple");
sampleList.Add("Hey");
ArrayList filteredList = new ArrayList();
foreach (string s in sampleList){
if (s.ToLower().StartsWith(prefixText.ToLower()))
filteredList.Add(s);
}
return (string[])filteredList.ToArray(typeof(string));
}
}
Step 2: AC.aspx page:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Ac.aspx.cs" Inherits="Ac" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="Ajaxtoolkit" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server"></head>
<body>
<form id="form1" runat="server">
<asp:scriptmanager id="ScriptManager1" runat="server"></asp:scriptmanager>
<div>
<asp:textbox id="TextBox1" runat="server"></asp:textbox>
<ajaxtoolkit:autocompleteextender enabled="true" minimumprefixlength="0" runat="server" servicemethod="GetNames" servicepath="WebService.asmx" targetcontrolid="TextBox1" usecontextkey="true">
</ajaxtoolkit:autocompleteextender>
</div>
</form>
</body>
</html>
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