My boss would like to see a list of Notifications (much like those in Facebook) that drops down from a Toolbar button. I hesitate to use a ComboBox because the user may click the dropdown area and execute some functionality that it will contain. I don't want the dropdown closing every time someone clicks it.
I'm thinking about using a standard Toolbar button that opens a positioned panel under the toolbar. That panel would contain the data and controls. Does this sound like the best way to do this? Is there something already out there?