c# - 如何通过单击鼠标更改 wpf 中的窗口位置

Question

我需要在单击鼠标时更改窗口的位置。这是代码。

private void Button_Click(object sender, RoutedEventArgs e)
{
    for(int i=0; i<50; i++)
    {
        this.Top -= i; 
        this.Left -= i;
    } 
}

但是每当我运行这个程序时，只显示最后一个位置。我的意图是连续移动它直到循环结束。

Answer 1

最后我自己找到了答案。正如我所料，它工作得很好。我使用了 SynchronizationContext，它可以发布操作来更新 UI 线程上的控件。

    public partial class Splash : Window
    {
        SynchronizationContext sc;
        System.Timers.Timer t;
        double i=0;
        double tempTop;
        double angle = 0;
        public Splash()
        {
            InitializeComponent();
            sc=SynchronizationContext.Current;
        }
        private void Move(object sender, MouseEventArgs e)
        {
            DragMove();
        }

        private void btnClose_Click(object sender, RoutedEventArgs e)
        {
            Application.Current.Shutdown();
        }

        private void btnMinim_Click(object sender, RoutedEventArgs e)
        {
            this.WindowState = WindowState.Minimized;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {

                l1.Content = "Helicopter Moving";
            if(t!=null)
            {
                t.Stop();
                t.Dispose();
            }
                //for (double i = 0; i < 1; i += 0.05)
                //{
                //    this.Top -= i;
                //    this.Left -= i;
                //    Thread.Sleep(100);
                //}
                //l1.Content = "Helicopter Stopped";
                tempTop = this.Top;
                t = new System.Timers.Timer();
                t.Interval = 10;
                t.Enabled = true;
                t.Elapsed += Change;
                t.Start();

        }
        void Change(object sender, EventArgs e)
        {
            if (i <= 3)
            {
                sc.Post(o =>
                {
                    this.Top = tempTop * (Math.Cos(Math.PI * angle / 180));
                    this.Left -= i;
                    angle = (angle >= 360) ? 0 : ++angle;
                    i = i + 0.01;
                }, null);
            }
            else
            {
                t.Stop();
                i = i * -1;
            }

        }
    }
}