Introduction
autoComplete Control Extender of AjaxToolKit with Database Interecation
Background
Background of this Article is using webservice for calling Database Hit
Using the code
A brief description of how to use the article or code. The
class names, the methods and properties, any tricks or tips.
Blocks of code should be set as style "Formatted"
like this:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AutoComplete.aspx.cs" Inherits="AutoComplete" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
<html>
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<table border="0" cellpadding="0" cellspacing="0" style="width: 80%" align="center">
<tr>
<td style="width: 100px">
</td>
<td style="width: 100px">
</td>
<td style="width: 100px">
</td>
</tr>
<tr>
<td style="width: 100px">
</td>
<td style="width: 100px">
<asp:TextBox runat="server" ID="myTextBox" Width="300" autocomplete="off" />
<ajaxToolkit:AutoCompleteExtender runat="server" ID="autoComplete1" TargetControlID="myTextBox"
ServicePath="AutoComplete.asmx" ServiceMethod="GetCompletionList" MinimumPrefixLength="1"
CompletionInterval="200" EnableCaching="true" CompletionSetCount="12" />
</td>
<td style="width: 100px">
</td>
</tr>
<tr>
<td style="width: 100px">
</td>
<td style="width: 100px">
</td>
<td style="width: 100px">
</td>
</tr>
</table>
</form>
</body>
</html>
<script type="text/javascript">
var frm = document.getElementById("aspnetForm");
if (frm) {
frm.onsubmit = function() { return false; };
}
</script>
using System;
using System.Web;
using System.Collections;
using System.Collections.Generic;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
public class AutoComplete : WebService
{
string connectionString = string.Empty;
DataTable dt = null;
SqlCommand objCommnad = null;
SqlDataAdapter da = null;
SqlConnection con = null;
public AutoComplete()
{
}
[WebMethod]
public string[] GetCompletionList(string prefixText, int count)
{
if (count == 0)
{
count = 10;
}
if (prefixText.Equals("xyz"))
{
return new string[0];
}
Random random = new Random();
List<string> items = new List<string>(count);
for (int i = 0; i < count; i++)
{
char c1 = (char)random.Next(65, 90);
char c2 = (char)random.Next(97, 122);
char c3 = (char)random.Next(97, 122);
items.Add(prefixText + c1 + c2 + c3);
}
//return items.ToArray();
return getCompany(prefixText);
/////////////////Rizwan Code Here \\\\\\\\\\\\\\\\\\\\\\\
}
private string[] getCompany(string CompanyNameLike)
{
connectionString = ConfigurationManager.AppSettings["ConStr1"].ToString();
con = new SqlConnection(connectionString);
try
{
con.Open();
objCommnad = new SqlCommand();
objCommnad.Connection = con;
objCommnad.CommandType = CommandType.StoredProcedure;
objCommnad.CommandText = "LU_Select_ProPerty";
objCommnad.Parameters.Add("@CompanyName", SqlDbType.VarChar).Value = CompanyNameLike;
da = new SqlDataAdapter(objCommnad);
dt = new DataTable();
da.Fill(dt);
//return dt;
}
catch (Exception ex)
{
con.Close();
throw ex;
}
finally
{
con.Close();
}
List<string> items = new List<string>(dt.Rows.Count);
for (int i = 0; i < dt.Rows.Count; i++)
{
items.Add(dt.Rows[i]["pro_name"].ToString());
}
return items.ToArray() ;
}
}
Remember to set the Language of your code snippet using the
Language dropdown.
Use the "var" button to to wrap Variable or class names in
<code> tags like this.
Points of Interest
Did you learn anything interesting/fun/annoying while writing
the code? Did you do anything particularly clever or wild or zany?
History
Keep a running update of any changes or improvements you've
made here.
