需要帮助通过定时器在 c# 中随机调用故事板

Question

好的，我有 4 个故事板和一些动画。我想随机调用它们，但间隔为 2 秒。我尝试了以下方法，它部分起作用了。

TargetAnimate 和 target4animation 被一起调用了两次。 target2animation 和 target4animation 被一起调用了两次。 target3animation 被单独调用了三次。

     namespace FF2D
{
    /// <summary>
    /// Interaction logic for Level1.xaml
    /// </summary>
    public partial class Level1 : UserControl
    {
        public Level1()
        {
            this.InitializeComponent();                      
        }

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {

        }

        private void UserControl_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            DispatcherTimer tgtTimer = new DispatcherTimer();
            tgtTimer.Tick += new EventHandler(tgtTimer_tick);
            tgtTimer.Interval = new TimeSpan(0, 0, 2);
            tgtTimer.Start();

        }

            private void tgtTimer_tick(Object sender, EventArgs e)
            {
                Random _t = new Random();
                int n = _t.Next(1, 4);
                if(n == 1)
                {
                    Storyboard sb1 = this.FindResource("TargetAnimate") as Storyboard;
                    sb1.Begin();
                }

                if(n == 2)
                {
                    Storyboard sb2 = this.FindResource("target2animation") as Storyboard;
                    sb2.Begin();
                }

                if(n == 3)
                {
                    Storyboard sb3 = this.FindResource("target3animation") as Storyboard;
                    sb3.Begin();
                }

                else
                {
                    Storyboard sb4 = this.FindResource("target4animation") as Storyboard;
                    sb4.Begin();
                }
            }

        }
}

Answer 1

target4animation 将在 n = 1、2 或 4 时启动。

将 else 更改为 if(n == 4) 或添加其他内容：

if(n == 1)
                {
                    Storyboard sb1 = this.FindResource("TargetAnimate") as Storyboard;
                    sb1.Begin();
                }

                else if(n == 2)
                {
                    Storyboard sb2 = this.FindResource("target2animation") as Storyboard;
                    sb2.Begin();
                }

                else if(n == 3)
                {
                    Storyboard sb3 = this.FindResource("target3animation") as Storyboard;
                    sb3.Begin();
                }

                else
                {
                    Storyboard sb4 = this.FindResource("target4animation") as Storyboard;
                    sb4.Begin();
                }

需要帮助通过定时器在 c# 中随机调用故事板

Need help in calling storyboards randomly in c# via a Timer

c#

wpf

animation

timer

storyboard