Unknown server tag 'asp:ComboBox'(AjaxToolkit)

Hi Sutish,

I uninstalled and installed new AjaxToolKit version 3.5.40412.0
And i created one new page with Ajax Combobox with ScriptManger and Updatepanel.

Code :

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="AjaxToolKitExample._Default" %><%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp1" %>http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">http://www.w3.org/1999/xhtml" >

   


   

   

    
       
       
       
           
               
                    q
                   
                    c
                   
                    madhu
                    kumar
                    jani
                   
               
           
       
            
        

   

this time i am getting this error.

Microsoft JScript runtime error: AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the ToolkitScriptManager in AjaxControlToolkit.dll.

why AjaxTookit version 3.5.40412.0 will not support Scriptmanager and updatepanel ?

And i deleted scriptmanager and update panel from above code and added ToolKitScriptManger then i run the page.

Now its working fine.

But in real time i developed my asp pages are using script manger and updatepanel.

give me solution?

Regards,
Jeevan.

plz try with prefix cc1 instead of asp1 may be it will help u bcoz as sutish sir told that ur error is related to tagprifix.

Hi All,

I added system.web.extension dll and ajaxtoolkit dll and i changed TagPrefix as "asp" to "asp1" .

Still i am getting same error "Unknown server tag 'asp:ComboBox' ".

this is my actual code please look into this.

<%@ Page Title="" Language="C#" MasterPageFile="~/WebMaster.Master" AutoEventWireup="true" CodeBehind="CustomerEntry.aspx.cs" Inherits="Web.Railway.CustomerEntry" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp1" %>
<%@ Register TagPrefix="obout" Namespace="Obout.Grid" Assembly="obout_Grid_NET" %>
<%@ Register TagPrefix="obout" Namespace="Obout.Interface" Assembly="obout_Interface" %>
<%@ Register Src="~/UserControls/CityAccess.ascx" TagName="CityAccess" TagPrefix="ucity" %>

   
   
   


   

       
           
       
       
           
       
   

Customer Entry

<%--                 --%>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Customer Name                                                                                             <%--                                                    AutoPostBack="True" FolderStyle=""                                                     >--%>                                                                                                         >                                                                                                                                                 runat="server" InitialValue="" ErrorMessage="Please Enter CustomerName"                                                     ValidationGroup="Validate">                                                                                                                                                 validationexpression="^[a-zA-Z\s]+$" Display="Dynamic"                                                     errormessage="Please Enter Proper Name" ValidationGroup="Validate" />                                             Basic Charges (Rs) : 0                                                 Customer Mobile Number                                                                                             <%--                                                    AutoPostBack="True" FolderStyle=""                                                     >--%>                                                                                                                                                                                                           runat="server" Display="Dynamic"                                                     ErrorMessage="Please Enter Customer Mobile Number" ValidationGroup="Validate">                                                                                                                                                 <%--                                                Display="Dynamic" ErrorMessage="Please Enter Only Numbers"                                                     ValidationExpression="^\d+$" ValidationGroup="Validate">--%>                                                                                                                                                                                                    controltovalidate="txtmobileno" validationexpression="^[0-9]{10}$"                                                     errormessage="Enter Valid Mobile Number" ValidationGroup="Validate" />                                                 <%--^[0-9]{10}$--%>                                                                                                                                                                                             Font-Size="Small" ForeColor="Blue">                                             :                                                                                                     ForeColor="Black" Text="0">                                                                                             Drop Location                                                                                             <%--                                                    AutoPostBack="True" onselectedindexchanged="ddCabNo_SelectedIndexChanged">                                                 --%>                                                <%--                                                     FolderStyle="" MaxLength="50">--%>                                                                                                                                                             onselectedindexchanged="oddlLocations_SelectedIndexChanged" Width="180px"                                                     Height="180px" AutoPostBack="True">                                                                                                                                                                  jeevan                                                         kumar                                                         kiran                                                                                                                                                                                                                                            <%--                                ErrorMessage="Select CabNo" InitialValue="--Select CabNo--" Width="120">--%>                                                                 ErrorMessage="Please Enter Drop Location" InitialValue="--Select--" Width="186px" Height="16px"                                                      ValidationGroup="Validate">                                                                                                                                                       Font-Size="Small" ForeColor="Blue">                                             :                                                                                                     ForeColor="Black">                                                                                             Terminal                                                                                                                                                 runat="server" AutoPostBack="True"                                                     onselectedindexchanged="oddlTerminal_SelectedIndexChanged">                                                                                                                                                                                                 runat="server" Display="Dynamic" InitialValue="--Select--" ErrorMessage="Please Select Terminal"                                                     FolderStyle="" ValidationGroup="Validate">                                                                                                                                                             ForeColor="Blue">                                             :                                                                                                                 ForeColor="Black">                                                                                                                                                                                     Payment Mode                                                                                                                                                 ForeColor="Black" oncheckedchanged="rbCash_CheckedChanged"                                                     AutoPostBack="True" />                                                                                                     ForeColor="Black" oncheckedchanged="rdCard_CheckedChanged"                                                     AutoPostBack="True" />                                                                                                     ForeColor="Black" oncheckedchanged="rbCorporate_CheckedChanged"                                                     AutoPostBack="True" />                                                                                                                                                                                                                                          Font-Bold="True">Total Charges (Rs)                                             :                                                                                                     ForeColor="Black" Font-Bold="True">0                                                                                                                                                                                                                                                                                     FolderStyle="" runat="server"                                                     OnClick="btnSubmit_Click" ValidationGroup="Validate"  >                                                                                                                                                      <%-- OnClientClick="CheckLength()"     --%>                                                                                                                                         OnClick="btnClear_Click" CausesValidation="False">                                                                                                                                                    CausesValidation="False" onclick="btnRefresh_Click">                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                runat="server" CssClass="ErrorText" Font-Bold="True" Font-Size="Small"                                                     ForeColor="Blue">                                                                                                     runat="server" CssClass="ErrorText" Font-Bold="True" Font-Size="Small"                                                     ForeColor="Blue">                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 runat="server" CssClass="ErrorText" Font-Bold="True" Font-Size="Small"                                                     ForeColor="Blue">                                                                                                     runat="server" CssClass="ErrorText" Font-Bold="True" Font-Size="Small"                                                     ForeColor="Blue">                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         <%--Customer Details At Aiport--%>                                             Cabs Inside Railway Station                                                                                                                                                                                                                                                                                                                               Serialize="true" AutoGenerateColumns="false" AllowGrouping="true"                                                     FolderStyle="~/style/premiere_blue" AllowSorting="true" AllowFiltering="false" AllowPaging="true" AllowPageSizeSelection="false"                                                                                                          Width="100%" PageSize="50" Height="300" >                                                                                                                                                                                                                                                                                                                                                                                                                                                     runat="server" />                                                                                                                     runat="server" />                                                                                                                     runat="server" />                                                                                                                     runat="server" />                                                                                                                     runat="server" />                                                                                                                     runat="server" />

In this page i am using Obout controls( third party tools).

Regards,

Jeevan.

Can you check system.web.extension dll is refered in ur code or not? Also recheck the ajaxcontrol toolkit dll for combobox control by simply adding in Visual studio toolbox.

Hi Ankit,