WPF 加载等待动画

直接上代码：

xmal：

.cs：

 /// 

    /// Interaction logic for LoadDialog.xaml
    /// 
    public partial class LoadDialog : MetroWindow
    {
        public LoadDialog()
        {
            InitializeComponent();

            //this.Topmost = true;    //始终保持最上层
        }

        public void SetProgressText(string desc)
        {
            //this.message.Content = desc;
            this.Dispatcher.Invoke(new Action(() =>
            {
                this.message.Content = desc;
            }));
        }
    }