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AJAX ModalPopupExtender causes Telerik.Web.UI.WebResource.axd to throw unknown error and status code 404

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David
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David asked on 27 Jan 2017, 12:07 AM

I have a .NET 4.5 webforms site that uses a mixture of Telerik AJAX Tools and ASP.NET AJAX tools.  Separately these tools work fine, but I have one page that has a RadTabStrip, RadMultiPage items, and RadGrids, along with an ASP.NET UpdatePanel with some ModalPopupExtender controls.  Now, in my local dev environment and my staging environment, this page works as intended.  In my grid, I have a link on each row that, when clicked, opens a modal popup.  However, when I move this to our production web server, the popups don't render and I get the following error returned:

SCRIPT5022: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 404

Telerik.Web.UI.WebResource.axd (15,16485)

 

Not sure what is wrong, as both staging and production environments are the same.  Here is the markup for the page that is having trouble:

001.<%@ Page Title="" Language="C#" MasterPageFile="~/Suppliers/Suppliers.Master" AutoEventWireup="true" CodeBehind="BidBoard.aspx.cs" Inherits="Preferred_Vendor_Site.Suppliers.BidBoard" %>
002. 
003.<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
004.<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
005.</asp:Content>
006.<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
007.    <%--<telerik:RadScriptManager ID="RadScriptManager1" runat="server"></telerik:RadScriptManager>--%>
008.    <telerik:RadScriptBlock ID="radSriptBlock" runat="server">
009.        <script type="text/javascript">
010.            function bidOnProject(rfbID) {
011.                //save the rfbID
012.                $("#<%= hfRFBID.ClientID%>").val(rfbID);
013.                //load the rfb
014.                $("#<%= btnLoadRFBforBid.ClientID%>").trigger('click');
015.            }
016. 
017.            function viewBid(bidID) {
018.                //save the bidID
019.                $("#<%= hfBidID.ClientID%>").val(bidID);
020.                //load bid information
021.                $("#<%= btnLoadViewBid.ClientID%>").trigger('click');
022.            }
023. 
024.            function showAlert(message) {
025.                alert(message);
026.            }
027.        </script>
028.    </telerik:RadScriptBlock>
029.    <div class="container">
030.        <div class="row">
031.            <div class="col-lg-12">
032.                <telerik:RadAjaxManager ID="ramAjaxManager" runat="server" UpdateInitiatorPanelsOnly="True" OnAjaxRequest="ramAjaxManager_AjaxRequest">
033.                    <AjaxSettings>
034.                        <telerik:AjaxSetting AjaxControlID="rmpBidMultiPage">
035.                            <UpdatedControls>
036.                                <telerik:AjaxUpdatedControl ControlID="rmpBidMultiPage" />
037.                            </UpdatedControls>
038.                             
039.                        </telerik:AjaxSetting>
040.                        
041.                        <telerik:AjaxSetting AjaxControlID="btnLoadRFBforBid">
042.                             
043.                        </telerik:AjaxSetting>
044.                        <telerik:AjaxSetting AjaxControlID="btnLoadViewBid" />
045.                    </AjaxSettings>
046.                </telerik:RadAjaxManager>
047.                <telerik:RadTabStrip RenderMode="Lightweight" ID="rtsBidTabs" runat="server" MultiPageID="rmpBidMultiPage" AutoPostBack="false">
048.                    <Tabs>
049.                        <telerik:RadTab PageViewID="rpvOpenRFBs" Text="Open Request for Bids" />
050.                        <telerik:RadTab PageViewID="rpvMyProjects" Text="Bidding History" />
051.                        <telerik:RadTab PageViewID="rpvAwarded" Text="Awarded Projects" />
052.                    </Tabs>
053.                </telerik:RadTabStrip>
054.                <telerik:RadMultiPage ID="rmpBidMultiPage" runat="server">
055.                    <telerik:RadPageView ID="rpvOpenRFBs" runat="server" Selected="true">
056.                        <h3>Open Requests for Bids</h3>
057.                        <p>
058.                            The following Requests for Bids are open for your company to bid on.  To bid on a project, click on the "Bid on Project" link.
059.                        </p>
060.                        <telerik:RadGrid ID="rgOpenRFBs" runat="server" AllowPaging="true" PageSize="5" AllowSorting="true" GridLines="Horizontal" OnNeedDataSource="rgOpenRFBs_NeedDataSource"
061.                            AutoGenerateColumns="false">
062.                            <MasterTableView>
063.                                <Columns>
064.                                    <telerik:GridBoundColumn DataField="viewRFB" DataType="System.String" HtmlEncode="false" />
065.                                    <telerik:GridBoundColumn DataField="Project Department" HeaderText="Project Department" DataType="System.String" />
066.                                    <telerik:GridBoundColumn DataField="Project Description" HeaderText="Project Description" DataType ="System.String" />
067.                                    <telerik:GridBoundColumn DataField="Start Date" HeaderText="Start Date" DataType ="System.String" />
068.                                    <telerik:GridBoundColumn DataField="End Date" HeaderText="End Date" DataType ="System.String" />
069.                                </Columns>
070.                            </MasterTableView>
071.                            <ClientSettings EnableRowHoverStyle="true"></ClientSettings>
072.                        </telerik:RadGrid>
073.                    </telerik:RadPageView>
074.                    <telerik:RadPageView ID="rpvMyProjects" runat="server">
075.                        <div id="MyProjects" style="margin-bottom: 25px;">
076.                            <h3>Pending Bids</h3>
077.                            <p>
078.                                The following is a list of projects your company has bidded on but have not been awarded. 
079.                            </p>
080.                         
081.                            <telerik:RadGrid ID="rgMyProjects" runat="server" AllowPaging="true" PageSize="5" AllowSorting="true" GridLines="Horizontal" AutoGenerateColumns="false" OnNeedDataSource="rgMyProjects_NeedDataSource"
082.                                 OnItemDataBound="rgMyProjects_ItemDataBound">
083.                                <MasterTableView>
084.                                    <Columns>
085.                                        <telerik:GridBoundColumn DataField="viewBid" DataType ="System.String" HtmlEncode="false" />
086.                                        <telerik:GridBoundColumn DataField ="Project Department" HeaderText ="Project Department" DataType="System.String" />
087.                                        <telerik:GridBoundColumn DataField="Project Description" HeaderText="Project Description" DataType ="System.String" />
088.                                        <telerik:GridBoundColumn DataField="Status" HeaderText="Bid Status" DataType="System.String" />
089.                                        <telerik:GridBoundColumn DataField ="Start Date" HeaderText ="Bidding Start" DataType ="System.String" />
090.                                        <telerik:GridBoundColumn DataField ="End Date" HeaderText ="Bidding End" DataType="System.String" />
091.                                        <telerik:GridBoundColumn DataField ="Bid Date" HeaderText ="Bid Date" DataType="System.String" />
092.                                    </Columns>
093.                                </MasterTableView>
094.                                <ClientSettings EnableRowHoverStyle="true" />
095.                            </telerik:RadGrid>
096.                        </div>
097.                        <div id="projectsLost">
098.                            <h3>Projects Not Awarded</h3>
099.                            <p>
100.                                The following is a listing of projects that your company placed a bid on but were not awarded.
101.                            </p>
102.                            <telerik:RadGrid ID="rgProjectsLost" runat="server" AllowPaging="true" PageSize="5" AllowSorting="true" GridLines="Horizontal" AutoGenerateColumns="false" OnNeedDataSource="rgProjectsLost_NeedDataSource"
103.                                 >
104.                                <MasterTableView>
105.                                    <Columns>
106.                                        <telerik:GridBoundColumn DataField="viewBid" DataType ="System.String" HtmlEncode="false" />
107.                                        <telerik:GridBoundColumn DataField ="Project Department" HeaderText ="Project Department" DataType="System.String" />
108.                                        <telerik:GridBoundColumn DataField="Project Description" HeaderText="Project Description" DataType ="System.String" />
109.                                        <telerik:GridBoundColumn DataField ="Start Date" HeaderText ="Bidding Start" DataType ="System.String" />
110.                                        <telerik:GridBoundColumn DataField ="End Date" HeaderText ="Bidding End" DataType="System.String" />
111.                                        <telerik:GridBoundColumn DataField ="Bid Date" HeaderText ="Bid Date" DataType="System.String" />
112.                                        <telerik:GridBoundColumn DataField="Award Date" HeaderText="Award Date" DataType="System.String" />
113.                                    </Columns>
114.                                </MasterTableView>
115.                                <ClientSettings EnableRowHoverStyle="true" />
116.                            </telerik:RadGrid>
117.                        </div>
118.                    </telerik:RadPageView>
119.                    <telerik:RadPageView ID="rpvAwarded" runat="server">
120.                        <h3>Projects Awarded</h3>
121.                        <p>
122.                            The following is a listing of projects your company was awarded.
123.                        </p>
124.                        <telerik:RadGrid ID="rgProjectsAwarded" runat="server" AllowPaging="true" PageSize="5" AllowSorting="true" GridLines="Horizontal" AutoGenerateColumns="false" OnNeedDataSource="rgProjectsAwarded_NeedDataSource">
125.                            <ClientSettings EnablePostBackOnRowClick="true" />
126.                            <MasterTableView>
127.                                <Columns>
128.                                    <telerik:GridBoundColumn DataField="viewBid" DataType ="System.String" HtmlEncode="false" />
129.                                        <telerik:GridBoundColumn DataField ="Project Department" HeaderText ="Project Department" DataType="System.String" />
130.                                        <telerik:GridBoundColumn DataField="Project Description" HeaderText="Project Description" DataType ="System.String" />
131.                                        <telerik:GridBoundColumn DataField ="Bid Date" HeaderText ="Bid Date" DataType="System.String" />
132.                                        <telerik:GridBoundColumn DataField="Award Date" HeaderText="Award Date" DataType="System.String" />
133.                                </Columns>
134.                            </MasterTableView>
135.                        </telerik:RadGrid>
136.                    </telerik:RadPageView>
137.                </telerik:RadMultiPage
138.            </div>
139.        </div>
140.    </div>
141.    <asp:UpdatePanel ID="upModals" runat="server">
142.        <ContentTemplate>
143.            <ajaxToolkit:ModalPopupExtender ID="mpxBidOnRFB" runat="server" BackgroundCssClass="modalBackground" DropShadow="true" TargetControlID="btnShowBidModal"
144.                            PopupControlID="pBidOnRFB" CancelControlID="btnCancelBid" />
145.                        <asp:Panel ID="pBidOnRFB" runat="server" style ="display:none;" CssClass="modalPanel">
146.                            <div id="bidOnRFB" class="bidModal">
147.                                <asp:HiddenField ID="hfRFBID" runat="server" />
148.                                <h2>Bid on this Project</h2>
149.                                <p>
150.                                    Please review the project listed in this RFB and place your bid below:
151.                                </p>
152.                                <dl>
153.                                    <dt>
154.                                        <span id="bidOnRFBDepart" runat="server" />
155.                                    </dt>
156.                                    <dd>
157.                                        <h3>Project Description</h3>
158.                                        <div id="bidOnRFBDescpt" runat="server" style="margin-bottom: 10px;"/>
159.                                    </dd>
160.                                    <dd>
161.                                        <strong>Start Date:</strong>  <span id="bidOnRFBStart" runat="server" />
162.                                    </dd>
163.                                    <dd>
164.                                        <strong>End Date:</strong>  <span id="bidOnRFBEnd" runat="server" />
165.                                    </dd>
166.                                    <dd>
167.                                        My Bid Amount:  $<asp:TextBox ID="txtBidOnRFBAmount" runat="server" />
168.                                    </dd>
169.                                </dl>
170. 
171.                                <asp:Button ID="btnSubmitBid" runat="server" Text ="Submit Bid" OnClick="btnSubmitBid_Click"/>
172.                                <asp:Button ID="btnCancelBid" runat="server" Text="Cancel" />
173.                            </div>
174.                        </asp:Panel>
175.                        <asp:Button ID="btnLoadRFBforBid" runat="server" style ="display:none;" OnClick="btnLoadRFBforBid_Click" />
176. 
177.                        <ajaxToolkit:ModalPopupExtender ID="mpxViewBid" runat="server" BackgroundCssClass="modalBackground" DropShadow="true" TargetControlID="btnShowViewBidModal"
178.                            PopupControlID="pViewBid" CancelControlID="btnCloseViewBid" />
179.                        <asp:Panel ID="pViewBid" runat="server" style ="display:none; min-width:50%;" CssClass="modalPanel">
180.                            <asp:HiddenField ID="hfBidID" runat="server" />
181.                            <div id="viewBid" class="bidModal">
182.                                <h2>View Bid</h2>
183.                                <dl>
184.                                    <dt>
185.                                        <span id="vwBidProjectDepart" runat="server" />
186.                                    </dt>
187.                                    <dd>
188.                                        <h3>Project Description:</h3>
189.                                        <div id="vwBidProjectDescript" runat="server" style="margin-bottom: 10px;" />
190.                                    </dd>
191.                                    <dd>
192.                                        <strong>Bid Amount:</strong>  <span id="vwBidAmount" runat="server" />
193.                                    </dd>
194.                                    <dd>
195.                                        <strong>Bidding Start Date:</strong>  <span id="vwBidRFBStartDate" runat="server" />
196.                                    </dd>
197.                                    <dd>
198.                                        <strong>Bidding End Date:</strong>  <span id="vwBidRFBEndDate" runat="server" />
199.                                    </dd>
200.                                    <dd>
201.                                        <strong>Project Awarded Date:</strong>  <span id="vwBidAwardDate" runat="server" />
202.                                    </dd>
203.                                </dl>
204. 
205.                                <asp:Button ID="btnCloseViewBid" runat="server" Text="Close" />
206.                            </div>
207.                        </asp:Panel>
208.                        <asp:Button ID="btnLoadViewBid" runat="server" style ="display:none;" OnClick="btnLoadViewBid_Click"/>
209.                        <asp:Button ID="btnShowViewBidModal" runat="server" style ="display:none;" />
210.                        <asp:Button ID="btnShowBidModal" runat="server" style ="display:none;"/>
211.        </ContentTemplate>
212.        <Triggers>
213.            <asp:AsyncPostBackTrigger ControlID="btnLoadViewBid" />
214.            <asp:AsyncPostBackTrigger ControlID="btnShowViewBidModal" />
215.            <asp:AsyncPostBackTrigger ControlID="btnShowBidModal" />
216.            <asp:AsyncPostBackTrigger ControlID="btnLoadRFBforBid" />
217.        </Triggers>
218.    </asp:UpdatePanel>
219.      
220.</asp:Content>

 

Is there something I'm missing, or could there be a setting on the web server that is causing the error to be thrown?

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Marin Bratanov
Telerik team
answered on 31 Jan 2017, 04:37 PM

Hello David,

I must start by noting that the AjaxControlToolkit brings in issues and requirements that make it incompatible with our controls: http://docs.telerik.com/devtools/aspnet-ajax/general-information/troubleshooting/general-troubleshooting#telerik-controls-are-incompatible-with-ajax-control-toolkit.

Thus, I suggest you consider using RadWindows instead, here is a demo that shows a very similar scenario: http://demos.telerik.com/aspnet-ajax/controls/examples/integration/gridandwindow/defaultcs.aspx?product=window.

I can also suggest you compare the web.config setup in both servers, because a 404 error from Telerik.Web.UI.WebResource.axd indicates that the handler is not present. You can see a full list of the settings we need here: http://docs.telerik.com/devtools/aspnet-ajax/general-information/web-config-settings-overview#mandatory-additions-to-the-webconfig.

Regards,

Marin Bratanov
Telerik by Progress
Try our brand new, jQuery-free Angular 2 components built from ground-up which deliver the business app essential building blocks - a grid component, data visualization (charts) and form elements.
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Marin Bratanov
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