To use a Stored Procedure in an AutoComplete extender TextBox in ASP.Net C# use the following procedure.

  1. Open SQL Server Management Studio then

    select the database where you want to create a table and Stored Procedure (in my case it is the library database and the table name is available book).

  2. Create Table in SQL Server

    1. CREATE TABLE [dbo].[AvailableBook](
    2. [Title] [varchar](500) NULL,
    3. [Authorname] [varchar](100) NULL,
    4. [Edition] [varchar](max) NULL,
    5. [Year] [varchar](max) NULL,
    6. [Volume] [varchar](max) NULL,
    7. [BookNo] [varchar](max) NULL,
    8. [ShelfNO] [varchar](50) NULL,
    9. [enrollment] [varchar](50) NULL,
    10. [Issuedate] [varchar](max) NULL,
    11. [Returndate] [varchar](50) NULL,
    12. [Status] [varchar](50) NULL,
    13. [Bookid] [varchar](max) NULL,
    14. [Type] [varchar](max) NULL
    15. )
    16. Insert values into the availablebook table like this:
    17. insert into availablebook values('c#','apress','2011','2010','3','1','2','NULL','NULL','NULL','Available','1','NULL')

  3. Create a Stored Procedure like this:
    1. Create proc [dbo].[searchbook]
    2. @book varchar(90)='%'
    3. as
    4. begin
    5. select Title,Authorname from availablebook where title like @book or authorname like @book
    6. end

    After that open Visual Studio then open your project or create a new project.

    Drag and drop a TextBox to your webform, in design view you are getting an arrow like addextender, see the following figure:

    AutoComplete-extender-textbox.jpg

    Select AutoCompleteExtender (don't forget to add a toolkit scriptmanager and reference it in your page header or in web.config).

    See example :(aspx page source view)

    1. <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
    2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    3. <html xmlns="http://www.w3.org/1999/xhtml">
    4. <head>
    5. <meta name="description" content="" />
    6. <meta name="keywords" content="" />
    7. <title>Big Business 2.0 by FCT</title>
    8. <meta http-equiv="content-type" content="text/html; charset=utf-8" />
    9. <link rel="stylesheet" type="text/css" href="Styles/style.css" />
    10. <script type="text/javascript" src="Scripts/jquery-1.7.1.min.js"></script>
    11. <script type="text/javascript" src="Scripts/jquery.dropotron-1.0.js"></script>
    12. <script type="text/javascript" src="Scripts/jquery.slidertron-1.1.js"></script>
    13. <style type="text/css">
    14. .watermark
    15. {
    16. background-color: Gray;
    17. }
    18. </style>
    19. </head>
    20. <body>
    21. <form id="Form1" runat="server">
    22. <h1>Library</h1>
    23. <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
    24. </asp:ToolkitScriptManager>
    25. Search Book: <asp:TextBox ID="TextBox2" AutoCompleteType="Search" AutoPostBack="true"
    26. runat="server" OnTextChanged="TextBox2_TextChanged"></asp:TextBox>
    27. <asp:AutoCompleteExtender ID="TextBox2_AutoCompleteExtender" runat="server" MinimumPrefixLength="1"
    28. CompletionInterval="5" Enabled="True" ServicePath="~/WebService.asmx" EnableCaching="true"
    29. CompletionSetCount="12" ServiceMethod="GetCompletionList" TargetControlID="TextBox2">
    30. </asp:AutoCompleteExtender>
    31. <asp:TextBoxWatermarkExtender ID="TextBox2_TextBoxWatermarkExtender" WatermarkCssClass="watermark"
    32. WatermarkText="search by title" runat="server" Enabled="True" TargetControlID="TextBox2">
    33. </asp:TextBoxWatermarkExtender>
    34. <asp:RoundedCornersExtender ID="TextBox2_RoundedCornersExtender" runat="server" Enabled="True"
    35. TargetControlID="TextBox2">
    36. </asp:RoundedCornersExtender>
    37. </form>
    38. </body>
    39. </html>

  4. Add a webservice from a new item and reference it in your project and write the following code (be careful while giving the webservice name; in my case it is WebService.asmx).
    1. [WebMethod]
    2. Public List<string> GetCompletionList(string prefixText)
    3. {
    4. List<string> result = new List<string>();
    5. con.Open();
    6. SqlCommand cmd = new SqlCommand("searchbook", con);
    7. cmd.Parameters.AddWithValue("@book", prefixText);
    8. SqlDataReader dr = cmd.ExecuteReader();
    9. while (dr.Read())
    10. {
    11. result.Add(dr["Title"].ToString());
    12. result.Add(dr["Authorname"].ToString());
    13. }
    14. return result;
    15. }

Rebuild your project and run it; you'll get some suggestions when you type characters.