When I add the following line of code in my .aspx file

 <% Response.Write(Session("copyrightDate"))%>

I get the following error when I try to run it

Is there a fix for this?

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


Source Error:


Line 106:                    Dim panel As Panel = New Panel()
Line 107:                    panel.Controls.Add(_viewState)
Line 108:                    Page.Form.Controls.Add(panel)
Line 109:                    Dim script As String = ("document.getElementById('" _
Line 110:                                + (_viewState.ClientID + ("').value = GetViewState__AspNetTreeView('" _




Source File: C:\Documents and Settings\Brian Jones\My Documents\Visual Studio 2005\cis281\App_Code\Adapters\TreeViewAdapter.vb    Line: 108


Stack Trace:


[HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).]
   System.Web.UI.ControlCollection.Add(Control child) +233
   CSSFriendly.TreeViewAdapter.SaveAdapterViewState() in C:\Documents and Settings\Brian Jones\My Documents\Visual Studio 2005\cis281\IdeaSystems\App_Code\Adapters\TreeViewAdapter.vb:108
   System.Web.UI.Control.SaveViewStateRecursive() +67
   System.Web.UI.Control.SaveViewStateRecursive() +194
   System.Web.UI.Control.SaveViewStateRecursive() +194
   System.Web.UI.Control.SaveViewStateRecursive() +194
   System.Web.UI.Page.SaveAllState() +595
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6647