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c#wpfxamlanimationdoubleanimation

Double animations with Image in WPF form


I want to move car to point 0, 0 with moving animations, but the problem is that I get an error then I use this function - https://gyazo.com/1f47e18f955c12dc1907fcf4d7b19d6a. App look: https://gyazo.com/10fb071534809229cb98955f9fb86231. There is my code (I found this function in one article WPF. Easiest way to move Image to (X,Y) programmatically?):

public void Eiti(Image target, double newX, double newY)
    {
        var top = Canvas.GetTop(target);
        var left = Canvas.GetLeft(target);
        TranslateTransform trans = new TranslateTransform();
        target.RenderTransform = trans;
        DoubleAnimation anim1 = new DoubleAnimation(top, newY - top, TimeSpan.FromSeconds(10));
        DoubleAnimation anim2 = new DoubleAnimation(left, newX - left, TimeSpan.FromSeconds(10));
        trans.BeginAnimation(TranslateTransform.XProperty, anim1);
        trans.BeginAnimation(TranslateTransform.YProperty, anim2);
    }

and xaml:

    <DockPanel Grid.Row="1" Background="#FF695887">
        <Canvas>
            <Image Name="car1" />
        </Canvas>
    </DockPanel>

How to solve it ?


Solution

  • public void Eiti(Image target, double newX, double newY)
        {
            var top = Canvas.GetTop(target);
            var left = Canvas.GetLeft(target);
            top = Double.IsNaN(top) ? 0 : top;
            left = Double.IsNaN(left) ? 0 : left;
    
            var storyboard = new Storyboard();
    
            DoubleAnimation anim1 = new DoubleAnimation(top, newY, TimeSpan.FromSeconds(10));
            Storyboard.SetTarget(anim1, target);
            Storyboard.SetTargetProperty(anim1, new PropertyPath(Canvas.TopProperty));
            storyboard.Children.Add(anim1);
    
            DoubleAnimation anim2 = new DoubleAnimation(left, newX, TimeSpan.FromSeconds(10));
            Storyboard.SetTarget(anim2, target);
            Storyboard.SetTargetProperty(anim2, new PropertyPath(Canvas.LeftProperty));
            storyboard.Children.Add(anim2);
    
            storyboard.Begin();
        }