A Persistent/Interactive Tooltip in Flex
I came up with the following example by creating some functionality around the DataGrid mouse movements to display a "tooltip" (in reality a Menu instance) at the mouse position. Rather than digging into the framework to try and extend the ToolTip class to make it "stick" when moused over, I realized we've got popup menu functionality like that already. Slap a custom menu item renderer in there, skin it, and you've got a mousable, interactive tooltip instance.
I could have gone the extra mile and created a custom DataGrid instance using this new functionality, but I'm lazy so I'm just going to post the instance I implemented and let you figure out how to implement it for yourself :-) The idea being that it could be just as easily implemented on any List based control, and even with a bit of work any component in the Flex framework. Just modify the renderer to fit the content you need!
