I've created a "Hello World" ribbon button as per MSDN code sample: http://msdn.microsoft.com/en-us/library/ff630938.aspx
The "Hello World" ribbon button is working only in AllItems.aspx (i.e. In the left navigation pane, click "Shared Documents" to open the Shared Documents library.). However, the "Hello World" ribbon button is not visible in the following scenarios:
- "Shared Document" on the homepage (i.e home.aspx) - At Home.aspx, edit page, click on "Insert" tab, click on "Existing List" and then add "Shared Documents" list into the page.
- "Shared Document" on any site page - Create new site page, click edit page, click on "Insert" tab, click on "Existing List" and then add "Shared Documents" list into the page.
I have full permissions to the site, however the "Hello World" ribbon button is still not visible to me. Is this a SharePoint bug?