When i edit a form it get the following error when i click on Messaging->Form Heading or Messaging->Form Thank You

Error: Form Master Edit is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: Unable to cast object of type 'System.Web.UI.ScriptManager' to type 'System.Web.UI.ScriptManager'. ---> System.InvalidCastException: Unable to cast object of type 'System.Web.UI.ScriptManager' to type 'System.Web.UI.ScriptManager'. at Code5Systems.FormMaster.Utility.DisableAjax(Control control) at Code5Systems.FormMaster.FormThankYouEdit.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---

If i click on Messaging->Auto responder or Messaging->Custom Template i get shorter version:

Unable to cast object of type 'System.Web.UI.ScriptManager' to type 'System.Web.UI.ScriptManager'.

The rest of the menus seem to work fine.

My setup is:

FormMaster 2008 2.0.4
DNN 5.0.0
SQL 2008
SBS 2008

/Jais

This is strainge since both the types involved in the Cast are the same types. As a workaround uncheck "Supports Partial Rendering" in the Host > Desktop Modules > Form Master > Dispatcher control page. Chances are we cannot reproduce the error since we cannot reproduce your environment but we will have a look.

Yes it is a very strange error message.

I don't have "Desktop Modules" in my Host menu, but i have "Extensions", where i disabled "Supports Partial Rendering" for the dispatcher control. Is that the correct place? (I'm new to DNN). In any case it didn't solve the problem.

Is there anything else i can do to diagnose the problem?

/Jais

Make sure the Applicaiton has been restarted after the Partial Rendering Change
Are you using FireFox or IE?

That did not help

The web server is 64 bit - can that have anything to do with it?

/Jais

I have tried both Firefox and IE. The error message comes more often in Firefox.

/Jais

Form Master is Developed on 64 Bit Vista, that is probably not an issue. Do you get a full Stack Trace in Event Viewer?

I have been unable to make server give me an full stack trace, but i found a solution here:

https://www.onyaktech.com/Members/MembersForums/tabid/67/forumid/134/postid/6746/view/topic/Default.aspx

I don't know why, but i works

/Jais

Thanks for posting the fix :-)

Can't see the link in this thread.  I am having the same problem.  What is the fix???

this new forum version does strange things with URLs

You may have to private "message" Jais because I cannot see any thing at that link any longer

If anybody can post the fix to this it would be greatly appreciated, I ran into this for the first time today putting the latest version on 4.9.3.

I have source, so I can probably code around it, but if there was an easy fix I would rather do that than changing the source (I like to do that as little as possible so I can merge in if there is ever a new version).

Thanks.
 

To solve my own problem, If you have source, \Components\Utility.vb, DisableAjax sub, change the first few lines to include the following:

Dim oScriptMgr As ScriptManager
Dim objScriptMgr As Object
objScriptMgr = control.Page.FindControl("scriptmanager")
If (Not IsNothing(objScriptMgr)) Then
If (TypeOf objScriptMgr Is ScriptManager) Then
oScriptMgr = CType(objScriptMgr, ScriptManager)
Else
Exit Sub
End If
Else
Exit Sub
End If

Seems to do the trick, code can probably be cleaned up/simplified, but I am in a hurry. :)

Did you install the PA inteded for DNN4x?

Well I was working form source originally, so I can't say since I compiled my version using the 4.9.3 DNN dll as the reference.

The code I included above made it purr like a kitten though.