Hi Terry,
I'm using ASP.Net 4.0 web forms with master pages.
Earlier, I used to have only one web page Default.aspx. The AjaxUploader controls are present in the same page and I had set action attribute to the value Default.aspx. Your trick worked out.
But, right now I have multiple pages such as Login.apx, About.aspx.
If I set the action to Default.aspx (see below) in my Site.Master then my Login.aspx does not work out.So, I had to remove action attribute and the error gets repeated as mentioned in the first post of this thread.
<form runat="server" action="Default.aspx">
What is the workaround to get rid of this error?
Please try to help me out as it is very urgent.
Regards,
sans.