无法在不可变对象实例上设置Foreground.Color动画。
private void AnimColor()
{
int counter = 0;
Storyboard mystoryboard = new Storyboard();
foreach (char letter in txtSend.Text)
{
Run newLetter = new Run(letter.ToString());
newLetter.Name = "letter_" + counter.ToString();
textblock1.Inlines.Add(newLetter);
counter++;
ColorAnimation k = new ColorAnimation();
//MessageBox.Show(letter.Name);
Storyboard.SetTarget(k, newLetter);
Storyboard.SetTargetProperty(k, new PropertyPath("Foreground.Color"));
k.From = Colors.Red;
k.To = Colors.Blue;
k.Duration = TimeSpan.FromSeconds(0.5);
k.BeginTime = TimeSpan.FromSeconds(0.5 * counter);
mystoryboard.Children.Add(k);
}
try
{
mystoryboard.Begin(this);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
我不确定如何将动态动画添加到动态控件中。
答案 0 :(得分:1)
为了实现动画效果,Run的Foreground Brush必须是可变的,默认值不是。
您应该在制作动画之前指定一个新的SolidColorBrush:
newLetter.Foreground = new SolidColorBrush(Colors.Black);