The expand button for the connection list on the toolbar is grayed out
说明
The small button ">>" to view rest of connections on tool bar is grayed out. Clicking this button will display the rest of the current connections that don't fit on the toolbar.
原因
The Visual Style is set to "Standard" in the Toad Options.
解决办法
WORKAROUND:
Change the Visual Style to "Enhanced" by going to View | Toad Options | Toolbars\Menus - Toolbars, and changing the Visual Style from Standard to Enhanced.
STATUS:
Waiting for a fix in a future release of Toad for Oracle.