Problem with project design mode in visual studio

I can't see design mode in my nopcommerce project properly!

When I open it, I get this message:
error rendering control an unhandled exception has occurred unknown server tag 'ajaxTOolkit:confirm Button Extender'

What this error means?

I have instaled Ajax controls in VS, but that doesn't help.


O.

I have been working with Nop for a couple of years and I have never once used design view.  Its better to view the page source and then see what it looks like in the browser.

I understand.
Did anyone manage to use design mode with nopCommerce? I'm using VS2008.
Thank you!

Hi There,
I use VS2008 as well and designer mode is only useful for fairly simple aspx pages. However if you create a user control (Module) you can use the designer mode to edit your control. This can be useful to drag third components onto the control to help ensure that the component is implemented correctly. Also useful to get to the properties and smart tags. I'm no expert in this I just use the thing!

If you have installed Office 2010 you may find that you are unable to switch to design mode.

Solution is here

Although after reading your post properly this may not be the problem :)