Question

I am trying to make my first AJAX Control and I get error.
I probbly missed some steps but I cann’t find them eventhough I read many tutorials,
probbly since I am new in AJAX, so I need to be guided step-by-step.

These are the steps I’ve already done:

1. Downloading AJAX ToolKit.
2. Adding These Controls to the ToolBox.
3. creating new ASP.NET Website (I heard about AJAX-Enabled Option, but I dont have this option)
4. Adding a AJAX Tool.

And thats it.

I read that I need to register add AjaxControlToolkit.dll in application bin folder,
but I dont know how to do that and I dont have Bin Folder in my website, only App_Data Folder.

than I need to add this to the web config:

<add tagPrefix="ajaxToolkit" namespace="AjaxControlToolkit" assembly="AjaxControlToolkit"/>

than I need to add this to my website:

 <asp:ScriptManager ID="scriptmanager1" EnablePartialRendering="true" runat="Server" /> 

This is the error I receive:

“Compilation Error Description: An
error occurred during the compilation
of a resource required to service this
request. Please review the following
specific error details and modify your
source code appropriately.

Compiler Error Message: CS0012: The
type ‘System.Web.UI.ExtenderControl’
is defined in an assembly that is not
referenced. You must add a reference
to assembly ‘System.Web.Extensions,
Version=3.5.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35’.”

Source Error:

Line 16:         <br />
Line 17:         <asp:Label ID="Label1" runat="server" Text="Label" Width="229px"></asp:Label><br />
Line 18:         <asp:ConfirmButtonExtender ID="ConfirmButtonExtender1" runat="server" ConfirmText="are you sure"
Line 19:             TargetControlID="Button1">
Line 20:         </asp:ConfirmButtonExtender>

Does anyone know how can I solve this error?

---

I am using Visual Studio 2005.

Answer 1

Add the bin folder to your application:

• Right-click on the root directory in
  the Solution explorer (the name of
  your application folder in the
  sidebar on the right of the Visual
  Studio Screen)
• Hover over “Add New ASP.NET
  Folder” and select “Bin”

Add reference to the toolkit assembly:

• Right-click the bin folder and select
  “Add Reference”
• Find “Ajax Control Toolkit” and
  select it