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Error Rendering Control In Design Mode

This issue is logged in the Issue Tracker as task to resolve this but this will take some time to fix. 1 user thanked tha_watcha for this useful post. Phil "MC" wrote: [/ref] >[/ref] Philvb Guest October 11th,03:59 PM #5 Re: CompositeControl fails to display in Design view apologies, should have read your description in more detail Philvb wrote:[/ref][/ref] MC After some debugging, I found that the NullReference exception is caused by the following method of AdRotator control: AdRotator.BaseUrl(an internal property) This property will be called during the rendering of Adrotator Just add a new project to your solution of that type and in your .cs file, overrite RenderContents: protected override void RenderContents(HtmlTextWriter output) { if (DesignMode) output.Write("

mikeal7 Total Posts: 45 Karma: 2265 Joined: 1/18/2010 Location: Australia PM Sven Sonderegger 2 posts Member since: Feb 2010 Posted 01 Jul 2014 Link to this post Hi there Is there a release date for sp1?

Sincerely, Steven Cheng Microsoft MSDN Online Support Lead This posting is provided "AS IS" with no warranties, and confers no rights. -------------------- [/ref] not[/ref][/ref] of[/ref][/ref] test[/ref][/ref] Tab[/ref][/ref] ConfigurationManager.ConnectionStrings["RedsSponsors"].ConnectionString;[/ref][/ref] ConfigurationManager.ConnectionStrings["RedsSponsors"].ProviderName;[/ref][/ref] have[/ref] >[/ref] You can change all properties without any problems except for the properties 'Failure' and 'Success'. What Is The "Real Estate Loophole"? Reply MartinSmithh Member 1 Points 102 Posts Re: How to avoid design time "Error Rendering Control" message on User Control?

if (Page == null || DesignMode) { Label lbl = new Label(); lbl.Text = "The control cannot be previewed in edit mode"; this.MyControl.Visible = false; this.Controls.Add(lbl); } Sincerely yours, Ivan Dimitrov Example of web.sitemap file: (CODE) Sample code to add to the page menu: (CODE) Running the application, we wi… ASP.NET 5 Common Exceptions in .NET (and How to Resolve Them) Article I work with all content pages that use a master page and the controls are not yet seen. All rights reserved.

I'm quite interested in hearing about this too. Robert 198 posts Member since: Aug 2009 Posted 03 Feb in reply to David V Link to this post I agree with David V 110%. Since we use not physical pages in Page Edit mode the page is null and your controls cannot be rendered. In case that you want to access the smart tag you should click on the control definition and hover the prefix and the smart tag will appear.

In case that you have question please open a support ticket and we will assist you further. I have simply clicked on 'Edit this page' within the cms Error Rendering control An unhandled exception has occured Page cannot be null. All Rights Reserved. I work with all content pages that use a master page and the controls are not yet seen.

This problem prevents us from seeing the contents within the control and prevents change in design mode the control properties. Can two integer polynomials touch in an irrational point? Ying 3 posts Member since: Sep 2011 Posted 27 Jun 2014 in reply to Marco Piumi Link to this post I have the same problem after I upgraded to Q2 2014 Aug 22, 2007 01:31 PM|jrummell|LINK I had a similar issue with a control I created, a ConfirmButton class that extends Button and contains a ConfirmButtonExtender (from AJAX Toolkit).

Login to your YAF.NET Support Forum forum accountor Register a new forum account.Or Connect viaGoogle tha_watcha #2 Posted : Wednesday, September 19, 2012 3:55:32 PM(UTC) Rank: YAF.NET Project LeadReputation: Peter Brunone MS MVP, ASP.NET Founder, Do the impossible, and go home early. Show all comments Jürgen Kessler 10.29.2012 got the same rendering error in designmode. get redirected here am I doing something wrong?

Error was caused by the property of type 'List Of' not being readonly. Cheers. Marked as answer by MSKR_SharePoint Thursday, December 27, 2012 7:20 AM Wednesday, December 26, 2012 1:33 PM Reply | Quote 0 Sign in to vote Let me know if this is

Thursday, December 27, 2012 6:56 AM Reply | Quote Microsoft is conducting an online survey to understand your opinion of the Technet Web site.

Cost me over 8 hours, but at least I got it fixed. Now if I want to work in design mode, I am forced to use a master page without radpagelayout, then once finished construction, resubmit the original master page. Reply PeterBrunone Contributor 2472 Points 3635 Posts Re: How to avoid design time "Error Rendering Control" message on User Control? Thanks in advance Peter Filipov Admin 1028 posts Posted 19 Jun 2014 Link to this post Hi Marco, We are aware for this problem and will try to fix it for

All rights reserved. When you deploy wsp and add webpart to the sharepoint page Ibelieveits working fine and only in design mode you might see this error in visual studio. Cost me over 8 hours, but at least I got it fixed. useful reference All rights reserved.

Turns out VS doesn't actually execute .ascx user control code when it's shown in the designer, it only parses the markup, so you can't conditionally change the control. Marco Piumi 29 posts Member since: Apr 2005 Posted 20 Jun 2014 in reply to Peter Filipov Link to this post Thank you, I wait with confidence to correct the problem. Privacy Statement| Terms of Use| Contact Us| Advertise With Us| CMS by Umbraco| Hosted on Microsoft Azure Feedback on ASP.NET| File Bugs| Support Lifecycle current community chat Stack Overflow Meta Stack You cannot reply to topics in this forum.

Features list Solutions By Industry Consumer Goods Financial Services Healthcare Associations By Application Sites Management Portals Ecommerce Get in touch with our Sitefinity experts +1-888-365-2779 Contact Us Schedule a demonstration Whitepapers RegardsSam User ProfileView All Posts by UserView Thanks Sponsor Wanna join the discussion?! will prevent rendering during design. hope this helps Wbr Phil "MC" wrote: Philvb Guest October 11th,02:44 PM #3 Re: CompositeControl fails to display in Design view I have no problem with the Custom Control, It

Robert 198 posts Member since: Aug 2009 Posted 29 Jul 2015 in reply to Ivan Zhekov Link to this post Ok so I was also wondering about using the designer with See… for some links on this topic –citronas Jan 5 '11 at 17:42 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up Hope this helpsRegards Juergen Show all comments Leave a Comment You must log in or register to leave comments 1Solution Creation Date Rating Importance Sort by 0 Mike (DevExpress Support) 07.12.2012 Peter Filipov Admin 1028 posts Posted 06 Aug 2015 Link to this post Hi Robert, We understand that this is a problem for the users and we are going to make

Browse other questions tagged controls or ask your own question. May 18, 2006 09:42 AM|MartinSmithh|LINK I have a very simple User Control with 2 buttons yet when I put it on a page in the designer it shows an error in My Account ManageYour Profile Change your addressemail and password Assign Licenses Manage licensesfor your dev team Renew anExisting SubscriptionPurchaseHistory New order statusand previous purchases DownloadYour Products Need help or require more Here is an example of the "gray box" I keep referring to:… –Nelson Rothermel Jan 5 '11 at 17:19 Check the property in your Load event, and conditionally

How to convert a set of sequential integers into a set of unique random numbers? Philvb wrote:[/ref] MC Guest October 11th,02:52 PM #4 Re: CompositeControl fails to display in Design view Hi MC, Yes, if you follow the instructions then that is how you can debug This can be useful to drag third components onto the control to help ensure that the component is implemented correctly. lol User ProfileView All Posts by UserView Thanks sam_s #5 Posted : Thursday, September 20, 2012 12:37:24 PM(UTC) Rank: YAF ForumlingReputation: Joined: 9/19/2012(UTC)Posts: 7Thanks: 2 times Hi tha_watcha,I was hoping

I'm my review here

You cannot create polls in this forum. Keep in mind that we are using PlaceHolders controls to keep our content and the nested controls are to accessible in design time. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Currently, there is no designer for RadPageLayout, but we do plan to bring one for a later release.

The modules are used at the backend. In Order to debug a Custom Control you need to Start ANOTHER copy of Visual Studio along side your existing one,and pointing it to a test website. Thank you! 0 Please login or register to vote for this post. (click on this box to dismiss)