The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

[Irfan Ahmed]

Hi,
 I have downloaded latest trial version of RadControls for ASP.NET.

I am just trying to use the RadEditor in my asp.net mvc view.
I tried http://www.telerik.com/help/aspnet-ajax/editor-getting-started.html
and
http://www.telerik.com/help/aspnet-ajax/mvc-using-editor.html

I just placed the editor on my view, no coding, nothing, but still i am getting the following error message in execution -
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

I have looked various forums on telerik but doesn't found appropriate one to get the answer.
So finally requesting the support.

I have also created support ticket (523566) for this issue.

Please find the attached code i have tried.
Please help me resolve this issue.

Thanks and regards
Irfan Sheikh

[Rumen]

Hello,

I examined the provided project and found that this generic ASP.NET error is due to you have placed server tags inside the runat=server head tag of the master page. I fixed it by wrapping the script tag inside RadCodeBlock, e.g.

Copy Code

<telerik:RadCodeBlock id="RadCodeBlock1" runat="server">
  <script src="<%: Url.Content("~/Scripts/jquery-1.4.4.min.js") %>" type="text/javascript"></script>
  </telerik:RadCodeBlock>

Greetings,
Rumen
the Telerik team

[Irfan Ahmed]

Thanks Rumen
For your kind support even in trial period.

[hemant]

i have installed a trial version of telerik for asp.net web application development  but if i used any of telerik control like rad data grid then i an having an error like "The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)." please reply as soon as possible...

[hemant]

I have seen earlier your post regarding to this error but i did not understand where I have to Change in my code..

[Ianko]

Hi Hemant,

The problem described by Irfan and resolved by Rumen is an isolated case and it is related also to MVC.

Please open a new thread with more information about:

• Is the built project an MVC one?
• Do you have issues with ordinary ASP.NET control?
• Ca you verify that the markup of the controls does not contain properties or attributes in comment blocks?

A new support thread with detail about the project or attached one that demonstrates the problem will be very helpful for us to isolate and investigate the problem.

Regards,
Ianko
Telerik

[Suresh]

Its great help!!!

wrapping javascript inside <telerik:RadScriptBlock ID="radSript1" runat="server"> worked for me.

 

Thanks

Suresh T G