I have a (IEWC) Toolbar and a ToolBarButton on a webform. The toolbarbutton
does not have the property "causesvalidation", therefore I had to use the
Page.Validate() function before checking for Page.IsValid, but, the problem
with this approach is that the page performs a post back to the server (if I
had a button control instead, it would not postback as it performs a client
Appreciate any ideas.