CODEWITHSUNDEEP
c#wpfeventsstoryboard
user1350555
user1350555

Reputation:

in C# code (WPF project) can I raise an event at a specific point in a storyboard

I have a storyboard that runs forever with autoreverse for lets say 10 seconds.

Is there anyway I can get the storyboard itself to raise an event every 2 seconds along the storyboard timeline.

the storyboard only exists in c# code (not xaml).

I hope that this is enough to go on, but, if more information is needed please ask and I will explain what i am doing.

thanks in advance

Dan.

Upvotes: 0

Views: 375

Answers (1)

J...
J...

Reputation: 31403

There are a couple of events provided by the storyboard timeline which may help... something like :

private Storyboard stb = new Storyboard();
private TimeSpan tsp = new TimeSpan();

public MainWindow()
{
    InitializeComponent();
    stb.CurrentTimeInvalidated += new EventHandler(doSomething);            
}

private void doSomething(Object sender, EventArgs e)
{
    Clock storyboardClock = (Clock)sender;
        // or whatever other logic you want
    if (storyboardClock.CurrentTime.Value.Seconds % 2 == 0 && 
       Math.Abs((storyboardClock.CurrentTime.Value - tsp).TotalSeconds) >= 2)
    {
        // or something like this...
        tsp = storyboardClock.CurrentTime.Value
         - new TimeSpan(0,0,0,0,storyboardClock.CurrentTime.Value.Milliseconds);
        // do something
    }
}

Check out :

MSDN - CurrentTimeInvalidated

MSDN - CurrentStateInvalidated

Upvotes: 2

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