Starts an animation to a particular value on the specified dependency property. - CSharp Windows.UI.Xaml.Media.Animation

CSharp examples for Windows.UI.Xaml.Media.Animation:Animation

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Description

Starts an animation to a particular value on the specified dependency property.

Demo Code

// http://www.codeproject.com/info/cpol10.aspx
using System.Windows.Media.Animation;
using System.Windows;
using System;//from w w  w  . jav  a2s.  c o m

public class Main{
        /// <summary>
        /// Starts an animation to a particular value on the specified dependency property.
        /// You can pass in an event handler to call when the animation has completed.
        /// </summary>
        public static void StartAnimation(UIElement animatableElement, DependencyProperty dependencyProperty, double toValue, double animationDurationSeconds, EventHandler completedEvent)
        {
            double fromValue = (double)animatableElement.GetValue(dependencyProperty);

            DoubleAnimation animation = new DoubleAnimation();
            animation.From = fromValue;
            animation.To = toValue;
            animation.Duration = TimeSpan.FromSeconds(animationDurationSeconds);

            animation.Completed += delegate(object sender, EventArgs e)
            {
                //
                // When the animation has completed bake final value of the animation
                // into the property.
                //
                animatableElement.SetValue(dependencyProperty, animatableElement.GetValue(dependencyProperty));
                CancelAnimation(animatableElement, dependencyProperty);

                if (completedEvent != null)
                {
                    completedEvent(sender, e);
                }
            };

            animation.Freeze();

            animatableElement.BeginAnimation(dependencyProperty, animation);
        }
        /// <summary>
        /// Starts an animation to a particular value on the specified dependency property.
        /// </summary>
        public static void StartAnimation(UIElement animatableElement, DependencyProperty dependencyProperty, double toValue, double animationDurationSeconds)
        {
            StartAnimation(animatableElement, dependencyProperty, toValue, animationDurationSeconds, null);
        }
}

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