c# Winform UI非同步委託

 1 public class UISync 2     { 3         private static ISynchronizeInvoke Sync; 4  5         public static void Init(ISynchronizeInvoke sync) 6         { 7             Sync = sync; 8         } 9 10         public static void Execute(Action action)11         {12             Sync.BeginInvoke(action, null);13         }14     }15 16     public partial class Form1 : Form17     {18         TrackBar trackBar1 = new TrackBar();19         Label lblTime = new Label();20         Label lblDuration = new Label();21 22         public Form1()23         {24             UISync.Init(this);25         }26 27         void Events_PlayerStopped(object sender, EventArgs e)28         {29             UISync.Execute(() => InitControls());30         }31 32         void Events_MediaEnded(object sender, EventArgs e)33         {34             UISync.Execute(() => InitControls());35         }36 37         private void InitControls()38         {39             trackBar1.Value = 0;40             lblTime.Text = "00:00:00";41             lblDuration.Text = "00:00:00";42         }43 44         void Events_TimeChanged(object sender, EventArgs e)45         {46             UISync.Execute(() => lblTime.Text = TimeSpan.FromMilliseconds(DateTime.Now.Millisecond).ToString().Substring(0, 8));47         }48 49         void Events_PlayerPositionChanged(object sender, EventArgs e)50         {51             UISync.Execute(() => trackBar1.Value = (int)(88 * 100));52         }53 54 55         void Events_DurationChanged(object sender, EventArgs e)56         {57             UISync.Execute(() => lblDuration.Text = TimeSpan.FromMilliseconds(DateTime.Now.Millisecond).ToString().Substring(0, 8));58         }59     }