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RadAjaxLoadingPanel won't disappear.

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Ajax

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29 Answers, 1 is accepted

answered on 09 Jul 2008, 11:00 PM

I am experiencing the same exact thing. For me, the page was working perfectly under RadControls classic. After upgrading/converting to RadControls for Ajax, I am getting this behavior.

For me, I have a similar structure:
- Main page loads user control (A) dynamically. It contains
           the RadAjaxManager.
    - user control (A) contains tabstrip within which (multipage) has
             a user control (B). Tabstrip is set to autopost back and
             multipage to render only current page.
        - user control (B) has several fieldset. Checkbox in fieldset's
                 legend enables/disables the other controls in that fieldset,
                 which themselves are contained in a panel.
        - user control (B) on pageload looks at parent page and finds
                 the RadAjaxManager, then via code calls AddAjaxSetting
                 and adds the appropriate controls.

If I modify the code in user control (B) to not assign a loading panel in the AddAjaxSetting, then it works fine.

answered on 19 Jan 2012, 09:06 AM

Hi Owen,

The issue you are facing is not a common issue, though the most possible reason for it are wrong ajax settings or improper loading of the dynamic user controls. That is why you be able to help you fix it, we will need a runnable version of the which we can debug. Can you open a formal support ticket and send as the page and the user controls there? Or paste the code which we can use to replicate it here.

Greetings,
Iana Tsolova
the Telerik team

If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now

answered on 07 Mar 2012, 08:52 PM

I am experiencing a similar problem in that the RadAjaxLoadingPanel stays up indefinitely after the response returns.

I am using the 2012.1.215.35 version of the controls and have an interesting context in which the code is running.

I have a ModalPopUpExtender open and inside I have a RadGrid. Within the grid I am tying the buttons inside my templates to the RadAjaxManager programmatically.

protected void rgTrngEvtSessions_ItemDataBound(object sender, GridItemEventArgs e) {

/*** Disabled due to the RadAjaxLoadingPanel occasionally sticking on the page

ImageButton imb = null;

if (e.Item.FindControl("imbTrngEvtAdd") != null) {

imb = (e.Item.FindControl("imbTrngEvtAdd") as ImageButton);

ramTrngManagement.AjaxSettings.AddAjaxSetting(imb, pnlTrngEvtSessions);

}

***/

}

For whatever reason, the panels are appearing just fine, but sometimes (intermittently) they won't disappear.

Any help is much appreciated.

answered on 07 May 2012, 02:34 AM

Hi Iana,

Sorry, I said I wasn't getting any kind of javascript error it just fails to go away when the async postback completes. I also tried updating the dll to the Version 4.0 one which had no effect then I updated my project to the 2012 Q1 dlls as well which also didn't help at all unfortunately. I'm really stumped by this as it works perfectly running locally so it's more difficult to debug when it only happens when it's deployed to the remote server.

The only thing I can think of trying is the web.config because that is also different to the local one but it seems to need to be for a host of reasons. I'll try to make it more like the local one see if that makes a difference. Is there anything in the web.config you can think of that would cause this kind of thing to happen? :

<?xml version="1.0" encoding="UTF-8"?>

<!--

Note: As an alternative to hand editing this file you can use the

web admin tool to configure settings for your application. Use

the Website->Asp.Net Configuration option in Visual Studio.

A full list of settings and comments can be found in

machine.config.comments usually located in

\Windows\Microsoft.Net\Framework\v2.x\Config

-->

<configuration>

<location path="Telerik.Web.UI.WebResource.axd">

<system.web>

<authorization>

<allow users="*"/>

</authorization>

</system.web>

</location>

<system.web>

<!--

Set compilation debug="true" to insert debugging

symbols into the compiled page. Because this

affects performance, set this value to true only

during development.

Visual Basic options:

Set strict="true" to disallow all data type conversions

where data loss can occur.

Set explicit="true" to force declaration of all variables.

-->

<compilation debug="true" strict="false" explicit="true">

<assemblies>

<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />

<add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

<add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />

<add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />

</assemblies>

</compilation>

<pages>

<namespaces>

<clear />

<add namespace="System" />

<add namespace="System.Collections" />

<add namespace="System.Collections.Generic" />

<add namespace="System.Collections.Specialized" />

<add namespace="System.Configuration" />

<add namespace="System.Text" />

<add namespace="System.Text.RegularExpressions" />

<add namespace="System.Linq" />

<add namespace="System.Xml.Linq" />

<add namespace="System.Web" />

<add namespace="System.Web.Caching" />

<add namespace="System.Web.SessionState" />

<add namespace="System.Web.Security" />

<add namespace="System.Web.Profile" />

<add namespace="System.Web.UI" />

<add namespace="System.Web.UI.WebControls" />

<add namespace="System.Web.UI.WebControls.WebParts" />

<add namespace="System.Web.UI.HtmlControls" />

</namespaces>

<controls>

<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

<add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI" />

</controls>

</pages>

<!--

The <authentication> section enables configuration

of the security authentication mode used by

ASP.NET to identify an incoming user.

-->

<authentication mode="Windows" />

<!--

The <customErrors> section enables configuration

of what to do if/when an unhandled error occurs

during the execution of a request. Specifically,

it enables developers to configure html error pages

to be displayed in place of a error stack trace.

<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">

<error statusCode="403" redirect="NoAccess.htm" />

<error statusCode="404" redirect="FileNotFound.htm" />

</customErrors>

-->

<httpHandlers>

<remove verb="*" path="*.asmx" />

<add verb="*" path="*.asmx" validate="false" type=

"System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add verb="*" path="*_AppService.axd" validate="false" type=

"System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add verb="GET,HEAD" path="ScriptResource.axd" type=

"System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

validate="false" />

<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />

</httpHandlers>

<httpModules>

<add name="ScriptModule" type=

"System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

</httpModules>

</system.web>

<system.codedom>

<compilers>

<compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">

<providerOption name="CompilerVersion" value="v3.5" />

<providerOption name="WarnAsError" value="false" />

</compiler>

<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">

<providerOption name="CompilerVersion" value="v3.5" />

<providerOption name="OptionInfer" value="true" />

<providerOption name="WarnAsError" value="false" />

</compiler>

</compilers>

</system.codedom>

<!--

The system.webServer section is required for running ASP.NET AJAX under Internet

Information Services 7.0. It is not necessary for previous version of IIS.

-->

<system.webServer>

<validation validateIntegratedModeConfiguration="false" />

<modules>

<remove name="ScriptModule" />

<add name="ScriptModule" preCondition="managedHandler" type=

"System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

</modules>

<handlers>

<remove name="WebServiceHandlerFactory-Integrated" />

<remove name="ScriptHandlerFactory" />

<remove name="ScriptHandlerFactoryAppServices" />

<remove name="ScriptResource" />

<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type=

"System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type=

"System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type=

"System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add name="Telerik.Web.UI.WebResource" path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" />

</handlers>

</system.webServer>

<runtime>

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

<dependentAssembly>

<assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" />

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35" />

<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" />

</dependentAssembly>

</assemblyBinding>

</runtime>

</configuration>

answered on 15 Jul 2014, 11:07 AM

Hello Martin,

The issue you are facing is caused by the fast subsequent ajax request executed. Note that by design, the ASP.NET AJAX Framework cancels the ongoing AJAX request if you try to initiate another one prior to receiving the response from the first one.In this case the ResponseEnd client event will not fire for the terminated request and this is leading to the presented behavior.
To change this behavior, you can set the RequestQueueSize property to a value greater than zero, which enables the queueing mechanism of RadAjax, and will allow you to complete the ongoing request and then initiate the pending requests in the control queue.

Regards,
Maria Ilieva
Telerik

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RadAjaxLoadingPanel won't disappear.

29 Answers, 1 is accepted