Resource Not Found when using Ajax (asp:UpdatePanel and RadAjaxManager)

[Nicole]

Hi,

I have a very weird error. Im getting 404 resource not found whenever I'm using AJAX in my page. When I comment this out, I don't encounter it.

My page has a user control which is as follows:

<div id="divMakeApptCustInfo" class="box" style="border: 0" runat="server">
   <asp:UpdatePanel ID="updPnlMakeApptCustInfo" runat="server" UpdateMode="Conditional">
    <ContentTemplate>
         <table style="margin-left:20px" runat="server">
                <tr class="datarow">
                    <td class="label-reschedule" style="padding-bottom: 20px;">
                        <asp:Label ID="Label12" runat="server" Text="ID Number"></asp:Label>
                         <span class="sign">*</span>
                    </td>

                    <td style="padding-bottom: 20px;">

                        <asp:TextBox runat="server" ID="txtIdNo" Width="250px" OnTextChanged="txtIdNo_OnChange" AutoPostBack="true"></asp:TextBox>
                      </td>
                </tr>
                 <tr class="datarow">
                    <td class="label-reschedule">
                        <asp:Label ID="Label15" runat="server" Text="Name"></asp:Label>
                        <span class="sign">*</span>
                    </td>
                    <td style="padding-bottom: 20px;">
                        <asp:TextBox runat="server" ID="txtCustomerName" MaxLength="66" Width="250px"></asp:TextBox>

                    </td>
                </tr>
                <tr class="datarow">
                   <td class="label-reschedule">Enter Verification Code <span class="sign">* </span> </td>
                   <td id="liCapchaUC" style="padding-top: 3px;">
                        <asp:UpdatePanel ID="updPnlCaptchaUC" runat="server" UpdateMode="Conditional">
                              <ContentTemplate>
                                <telerik:RadCaptcha ID="rdcaptcha" CaptchaAudioLinkButtonText=""
                                    runat="server" ValidationGroup="submitGroupMakeAppt" InvisibleTextBoxLabel="true" EnableRefreshImage="true" ValidatedTextBoxID="txtCaptchaUC"
                                    CaptchaLinkButtonText="" Display="Dynamic" ProtectionMode="Captcha" Height="100px">
                                    <CaptchaImage Width="280" Height="50" EnableCaptchaAudio="true" ImageCssClass="imgcss"
                                        RenderImageOnly="True" TextColor="black" BackgroundNoise="None" LineNoise="None" FontWarp="None" />
                                </telerik:RadCaptcha>
                                </ContentTemplate>
                        </asp:UpdatePanel>
                        <asp:TextBox ID="txtCaptchaUC" runat="server" ToolTip="Please enter the upper code" tabindex="2"
                            MaxLength="5" AutoComplete="off" CssClass="rcTextBoxClass"></asp:TextBox>
                    </td>
                </tr>
            </table>
   </ContentTemplate>
</asp:UpdatePanel>

    </div>

My requirements is to populate the customer name based on the entered Id's ontextchange event. Everything is ok on the first page_load. The page has a Continue button and when I click Continue, I proceed to the next page. On the next page, there's a back button. When I click the back button, then enter the Id again, I get the resource not found error. I have also tried using telerik: RadAjaxManagerProxy instead of asp:UpdatePanels, as shown below:

<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server" >
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="txtIdNo">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="txtCustomerName"/>
                </UpdatedControls>
            </telerik:AjaxSetting>
            <telerik:AjaxSetting AjaxControlID="txtCustomerName">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="txtCustomerName"/>
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>
    </telerik:RadAjaxManagerProxy>

but i'm also encountering the same error. Please advise why this is happening. Any help is greatly appreciated! In my back button, I'm just calling Server.Transfer to my main page.


Thanks!

[Konstantin Dikov]

Hi Nicole,

Since the provided code snippet is working as expected without any issues, we will need additional information about your exact scenario in order for us to be able to assist you.

Additionally, please refer to the attached sample page and see what differs in your project.

 

Regards,
Konstantin Dikov
Telerik