Ajax control toolkit editor is not showing correctly

Question

i am new in asp.net and i am working on the thing where i had to add HTML Editor Extender (Ajax Toolkit). but it does not appear correctly. Click [here] (http://s24.postimg.org/56f3vdv0l/error.png)! I used this code...-->

 <form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>  
<div>    
<cc1:Editor ID="Editor1" runat="server" width="600px" Height="200px"/>
    <asp:Button ID="Button1" runat="server" Text="Submit" onclick="Button1_Click" /><br/><br/>
    <asp:Label ID="Label1" runat="server"
        Text=""></asp:Label>
</div>
</form>

Answer 1

After a lot of searching, I found my solution to the same problem... use this:

<ajaxToolkit:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"></ajaxToolkit:ToolkitScriptManager>

instead of:

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

Good luck!

This would allow use of the Editor control, rather than extending the Textbox (which I actually like that method as well).