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Visual Studio 2008 Error Rendering Control

Images and Photos Web Graphics Software Polish Reports in Access Video by: crystal Polish reports in Access so they look terrific. Connecting the dots, I realized that the wrong version of controls were installed (could be due to the fact that higher versions of the Framework were installed on the machine and Restart Visual Studio Hope this helps. The errors shouldn't be there anymore Hope this will help anyone who has the problem.. navigate here

I tried following way 1. You can also try the following steps to resolve the situation. 1. Close and restart Visual Studio. Scroll up/down until you see Telerik.Web.UI in the column 4.

If yes, can you post the code here. Pete P.S.: I found a permanent "fix" for this problem with modalpopuextender and updatepanel. Want to Advertise Here? Type B originates from 'C1.Web.iPhone.3, Version=3.5.20093.92, Culture=neutral, PublicKeyToken=9b75583953471eea' in the context 'LoadNeither' at location 'C:Documents and SettingsAdministratorLocal SettingsApplication DataMicrosoftVisualStudio9.0ProjectAssemblies9yyzj0da01c1.web.iphone.3.dll'.

We decided to sacrifice the appearance of the Telerik.Web.UI assembly in the above mentioned dialogs, but prevent this annoying error from happening and we already removed the registry entries from the I'm seeing this in a master page after I added the asp:ScriptManager control. If you add a few and run the page, source will look like this:

Hope it'll be clear for you. I downloaded both today10/11/2007. All Rights Reserved. 1.800.858.2739 Pittsburgh, PA: 412.681.4343 current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. https://www.experts-exchange.com/questions/23914617/How-to-handle-exception-Error-rendering-control-at-designMode-in-Visual-Studio.html Join the community of 500,000 technology professionals and ask your questions.

Thanks. 6 years ago Reply Chathu Hi, Thanks a lot of the instructions. Error was caused by the property of type 'List Of' not being readonly. I'm getting the "Error: Rendering Control. Validation controls, which includes the BaseCompareValidator, BaseValidator, CompareValidator, CustomValidator, RangeValidator, RegularExpressionValidator, RequiredFieldValidator, and ValidationSummary control." There seem to be still a lot of problems with UpdatePanels (in .net 2.0).

iam also facing the same. http://www.telerik.com/forums/error-rendering-control-unable-to-cast-object-of-typea-to-typea-75309ca98a0e Web.SessionStateModule or a custom session state module is included in the \\ section in the application configuration.”. This should deselect all 3.5 controls 6. Click on View| Refresh to re-render the page.

Join Now For immediate help use Live now! check over here I'm getting "object not set to an instance of an object". I have not done the "Convert to Web Application" on all pages, but even pages that are converted, with designer file, still exhibited the same issue. asp.net visual-studio-2008 custom-controls share|improve this question edited Feb 3 '09 at 9:18 IAdapter 24.1k45139213 asked Jan 30 '09 at 22:27 Keltex 20.2k760101 add a comment| 2 Answers 2 active oldest votes

I messed that up in my last post. Plus, some of the pages that work have the same infra controls on the pages that don't, so I'm not sure that's what it is. I haven't had a chance to install VS 2008 release yet, which was released on 11/19/2007, but I assume it will fix this problem in that version also. his comment is here This value is stored in the cache for performance reasons and it works fine.

Subscribe to our monthly newsletter for tech news and trends Membership How it Works Gigs Live Careers Plans and Pricing For Business Become an Expert Resource Center About Us Who We What are the alternatives to compound interest for a Muslim? I thought it might be related to the fact that we were using Infragistics, but I've upgraded the app to the latest versions (tried the 3.5 and 2.0 controls) with no

it is not sufficient to check for a particular session variable being nothing.

Try some of the tips here to see if you problem goes away: http://blogs.visoftinc.com/archive/2007/09/23/asp.net-ajax--updatepanel-not-working--common-problems.aspx Also, make sure there aren't any syntax errors in your code, like an unclosed tag or something... All Rights Reserved. Log in Sign up Search Log in Sign up Navigate to ProjectAssemblies directory C:Users[username]AppDataLocalMicrosoftVisualStudio9.0ProjectAssemblies (Windows Vista) OR C:Documents and Settings[username]Local SettingsApplication DataMicrosoftVisualStudio9.0ProjectAssemblies (Windows XP) 5.

JohnH, The issue was at design time, some objects like Session, are not available. Reply srieen None 0 Points 15 Posts Re: Error Rendering Control UpdatePanel Dec 05, 2007 03:33 PM|srieen|LINK Hi Peter, Did you able to get rid from the above problme ? I ended up just reverting the project back to vs2008 for now. weblink Any ideas? 7 years ago Reply Web Development Tools Microsoft Hi John, The equivalent code in VB.NET would look like: Protected Overrides Sub OnInit(ByVal e As System.EventArgs) InitializeComponent() MyBase.OnInit(e)

Click Browse and navigate to the Telerik installation (Typically C:\Program Files\Telerik\RadControls for ASP.NET AJAX Q3 2010\Bin20) 7. Details: [A]C1.Web.iPhone.C1LaunchPad.C1LaunchPad cannot be cast to C1.Web.iPhone.C1LaunchPad.C1LaunchPad. e.g.: this.registerButton.Click += new EventHandler(this.registerButton_Click); base.OnInit(e); Even if you mode the event wirup after the base.OnInit, it still messes up the designer. i was getting the same issue and was wondering whts wrong, I even modified my web.config but ddnt help.

Though modalpopupextender is not listed as an incompatible control, it should probably be put on that list. This is very annoying. It seems that new pages added to the project behave fine, but I cannot find any difference between the existing ones and the new ones. If I can't find anything today I may post a formal question here. -=JLK=- Reply ShaggyDogg None 0 Points 8 Posts Re: Error Rendering Control UpdatePanel Apr 29, 2009 11:23 AM|ShaggyDogg|LINK

I think that AjaxControlToolkit is handled on CodePlex at: http://www.codeplex.com/AtlasControlToolkit/WorkItem/List.aspx But, I think that this isa problem with Update Panel, and UpdatePanels are a part of System.Web.Extensions, not AjaxControlToolkit's dll.