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HomeHomeOur CommunityOur CommunityGeneral Discuss...General Discuss...Error Layout ModeError Layout Mode
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11/26/2012 3:28 PM
 
fudgey


Joined: 11/26/2012
Posts: 1

Hi, We have many child portals and whenever they try to access their site in Layout Mode they receive an error

An error has occurred.
DotNetNuke.Services.Exceptions.PageLoadException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). ---> System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). at System.Web.UI.ControlCollection.AddAt(Int32 index, Control child) at DotNetNuke.UI.Skins.Pane.ProcessPane() at DotNetNuke.UI.Skins.Skin.ProcessPanes() at DotNetNuke.UI.Skins.Skin.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at DotNetNuke.Framework.DefaultPage.Page_Init(Object sender, EventArgs e) at System.Web.UI.Control.OnInit(EventArgs e) at System.Web.UI.Page.OnInit(EventArgs e) at DotNetNuke.Framework.PageBase.OnInit(EventArgs e) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---

What can we do to correct this issue?
 
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2/25/2014 6:13 PM
 
Larry Daniele


Joined: 5/3/2007
Posts: 58

I'm getting the same error when entering Layout mode in DNN 7.2.1 on a particular page on my client's website (but not other pages). Here's the stack trace:

DotNetNuke.Services.Exceptions.PageLoadException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). ---> System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
   at System.Web.UI.ControlCollection.AddAt(Int32 index, Control child)
   at DotNetNuke.UI.Skins.Skin.ProcessPanes()
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Control.AddedControl(Control control, Int32 index)
   at DotNetNuke.Framework.DefaultPage.OnInit(EventArgs e)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   --- End of inner exception stack trace ---

I'm going to look over the skin for this page and see if there's something suspicious but any leads on what to look for and where would be appreciated.
 
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2/25/2014 6:30 PM
 
cathal connolly


cathal connolly's Avatar

www.cathal.co.uk
Joined: 4/9/2003
Posts: 9676
that typically means an exception is thrown and exception details are written to the page output before the page has started fully generating - when the page tries to generate it finds content and throws that 2nd exception - as such the exception you see is a red herring, you need to find out what exception was thrown before. Most typically I've seen this when a high level element such as menu has failed to load. I'd suggest checking admin->event viewer to see if any error is logged and also considering setting log4net to All in case it captures something (http://www.dnnsoftware.com/wiki/page/...)
Buy the new Professional DNN7: Open Source .NET CMS Platform book Amazon US
 
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2/25/2014 8:26 PM
 
Larry Daniele


Joined: 5/3/2007
Posts: 58

Sorry if I wasn't clear. This "inner exception" I quoted was from the DNN Event Viewer and there was no other event that immediately preceded this one. In the UI I see:

Server Error
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.

I will take your advice about log4net and see what that tell me. Thanks!
 
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2/26/2014 12:29 AM
 
Ravi Punjwani


Joined: 6/21/2012
Posts: 20
Larry, as you specified that the error comes in a particular page only. I believe the error exists in your skin file for that page.

I suggest to :
1. verify the DNN-administration user-controls are configured written properly in the skin files
2. verify the skin file for that page and make sure that any server-code <% .. %> is not creating any issue [this one more probable]
 
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