WPF设计带数字标签显示的进度条

public static string GetPercentage(DependencyObject obj)
        {
            return (string)obj.GetValue(PercentageProperty);
        }

        public static void SetPercentage(DependencyObject obj, string value)
        {
            obj.SetValue(PercentageProperty, value);
        }
        //百分比展示
        // Using a DependencyProperty as the backing store for Percentage.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty PercentageProperty =
            DependencyProperty.RegisterAttached("Percentage", typeof(string), typeof(AttachProperty), new PropertyMetadata(""));

"pro" Style="{StaticResource ProgressBarStyle}" ath:AttachProperty.Percentage="{Binding Percentage}" Height="35" Foreground="#ff2791ff" Background="#ffe5e9f0" Width="600" Value="0" Maximum="100">

private void Func(object obj)
        {
            for (int i = 0; i 100; i++)
            {
                this.pro.Dispatcher.Invoke(new Action(()=> {
                    StyleLibrary.Core.AttachProperty.SetPercentage(pro, i.ToString() + "%");
                    pro.Value = i;
                }));
                Thread.Sleep(100);
            }
        }

//调用
ThreadPool.QueueUserWorkItem(Func,null);