I have a problem with a List ribbon button that disappears. The only thing that has happend that I know of is that the wsp was redeployed and the site-feature (which creates the list) was reactivated. ...
In our Elements.xml file we add a custom action for the EditControlBlock which calls our own edit URL. Now we want to do a similar thing for when the user click on the 'View Item' ribbon element. ...