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WPF - VISUAL C# EXERCISES
Exercise: Use a storyboard and event trigger to animate a circle
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Open the window in the folder above, and change app.xaml so that it is the default window. When you run your application, you should see a not terribly interesting circle:
The circle has a radial gradient brush composed of two colours - we'll animate both of these.
Start to create an event trigger for the ellipse:
- Start by creating a Triggers section for the ellipse in XAML. Within this create an event trigger, where the routed event is that of a mouse entering the ellipse (MouseEnter).
- Set this event trigger to begin a storyboard (you don't have to give it a name if you're not storing it in a separate resource).
- Now create your storyboard (setting it to repeat 3 times - 3x - and automatically reverse when finished).
Within your storyboard now create two colour animations - one for each gradient stop - remembering to spell "colour" the American way:
Animate each gradient stop, taking 1 second to change its colour.
See if your animation works, then take a moment to reflect on just how long it's going to take you to remember syntax like this ...