RadEditor: Value Cannot Be Null Parameter: child error after upgrade to Q2 release

[Jimmie]

After upgrading to the Q2 release today, I get the error below as soon as I hit the page with the RadEditors. It does not hit any break points. It happens in both Release and Debug mode.
 
I have multiple RadEditors on the page sharing a single toolbar using the ToolBarProviderID property. When I stop sharing the toolbar, I do not get the error. 

At one time, the Stack Trace referenced a method with a name like "Ribbon" something. I believe it has to do with the new ribbon functionality.

I do not get this error when I use the Q1 release.

Please let me know if there is a workaround for the problem.

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Value cannot be null.
Parameter name: child

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: child

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentNullException: Value cannot be null. Parameter name: child] System.Web.UI.ControlCollection.Add(Control child) [phone] Telerik.Web.UI.RadEditor.ControlPreRender() +225 System.Web.UI.Control.PreRenderRecursiveInternal() +108 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Control.PreRenderRecursiveInternal() +224 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3394

[Rumen]

Hello Jimmie,

Please, accept our sincerely appoligies for the inconvenience that this bug is causing.

You can download the latest internal build where the ToolProviderID problem is fixed. The issue will not exist in the next Q2 2011 SP2 release.

Best regards,
Rumen
the Telerik team

[ChrisS]

Hi Rumen,

We are also badly affected by this bug.  Can you tell me when Q2 2011 SP2 release is due?  We have six websites waiting to go live and we don't wish to use an internal build in a production environment.  Once we know your timescales we can make a decision whether to revert back to Q1 2011.

Many thanks

[Robert Meserole]

I just downloaded the latest internal build and placed the new DLLs in my bin folder and the problem with the ToolsProviderID appears to still exist.

[Dobromir]

Hi guys,

@Chris
The service pack with the fix for this bug is planned for the middle of September.

@Robert
Could you please verify that you are using Telerik.Web.UI.dll version 2011.2.809 or later? I have tested setting ToolProviderID property with the last two internal builds (2011.2.809 and 2011.2.816) and was unable to reproduce the issue. If you are still experiencing this problem could you please open a formal support ticket and provide a sample fully runnable project reproducing the issue?

Greetings,
Dobromir
the Telerik team

[Curtis]

I just downloaded the latest internal build and moved the latest DLLs to my bin, restarted IIS, and it didn't fix the issue here as well.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: child

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentNullException: Value cannot be null. Parameter name: child] System.Web.UI.ControlCollection.Add(Control child) [phone] Telerik.Web.UI.RadEditor.ControlPreRender() +270

<telerik:RadEditor runat="server" ID="txtProgramDescription" Skin="Black" ContentFilters="ConvertToXhtml" ToolsFile="~/ToolsFile.xml" Height="220px" Width="750px" AllowScripts="false" NewLineBr="true" StripFormattingOnPaste="AllExceptNewLines" Content='<%# Bind("Description") %>'>
                         <CssFiles>
                             <telerik:EditorCssFile Value="~/css/editor.css" />
                         </CssFiles>
                        </telerik:RadEditor></td>
                </tr>
                <tr>
                    <td class="editFormLabel">Description Detail:</td>
                    <td><telerik:RadEditor runat="server" ID="RadEditor1" Skin="Black" ContentFilters="ConvertToXhtml" ToolProviderID="txtProgramDescription" ToolsFile="~/ToolsFile.xml" Height="220px" Width="750px" AllowScripts="false" NewLineBr="true" StripFormattingOnPaste="AllExceptNewLines" Content='<%# Bind("DescriptionDetail") %>'>
                         <CssFiles>
                             <telerik:EditorCssFile Value="~/css/editor.css" />
                         </CssFiles>
                        </telerik:RadEditor>

The first editor has some text being bound whereas the second editor's data is null.

[Rumen]

Hi Curtis,

I was unable to reproduce the problem with the today's build. For your convenience I have attached it to my reply.

By the way next week we will release Q2 2011 SP1 and you can upgrade to it.

Regards,
Rumen
the Telerik team