QA

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Q&A

Q1:	What if I need a lot of timers, but I'm concerned about system resources?
A1:	When possible, use a single timer for multiple duties . This is extremely easy when two events occur at the same interval ”why bother creating a second timer? When two events occur at different intervals, you can use some decision skills along with static variables (discussed in Hour 12) to share Timer events.
Q2:	What else can I do with an Image List?
A2:	You can assign a unique picture to a node in a Tree View when the node is selected. You can also display an image in the tab of a tab page in a Tab control. There are a lot of uses, and as you learn more about advanced controls, you'll see additional opportunities for using images from an Image List.

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