从在该窗口的框架内调用的页面更新进度条（位于窗口中）

Question

正如问题所述，我在这里有一个进度条

<ProgressBar x:Name="progress_bar" HorizontalAlignment="Left" Height="3" Margin="148,75,0,0" VerticalAlignment="Top" Width="868" Foreground="#FF3B79D3" Background="Transparent" BorderBrush="#FF9DB0D8" x:FieldModifier="public" Grid.ColumnSpan="2" />

和Code Behind with Some尝试允许更新进度条。

这里我将进度条设置为公共

尝试了一个属性获取者Setter

试过代表

namespace dcn
{
    /// Interaction logic for dash.xaml
    public partial class dash : Window
    {
        public static ProgressBar pr;
        public dash()
        {
            InitializeComponent();
            fwinitializing();
            progress_bar.Visibility = Visibility.Visible;
            pr = progress_bar;
        }
        private void UpdateProgressBar(int i)
        {
            Action action = () => { SetProgress(i); };
            progress_bar.Dispatcher.BeginInvoke(action);
        }
        public int prgbar
        {
            get { return (Int32)progress_bar.Value; }
            set
            {
                //Console.WriteLine(value);
                pr.Value = Convert.ToInt32(value);
                progress_bar.Value = Convert.ToInt32(value);
                tmp.Content = "Processing......" + value + "%";
                UpdateProgressBar(Convert.ToInt32(value));
            }
        }
        private void SetProgress(int i)
        {
            progress_bar.Value = i;
        }
    }
}

现在在我的页面上，在上面窗口的框架内调用。在这里，我使用可正常工作的后台工作程序对MDB文件运行多个插入查询，如果放在此页面中，还会更新进度条。但我想更新Above Window的进度条。

namespace dcn
{
    /// <summary>
    /// Interaction logic for mach_sync.xaml
    /// </summary>
    public partial class mach_sync : Page
    {
        CABLE.Cable_app sending = new CABLE.Cable_app();
        string path = Environment.CurrentDirectory + "\\xyz.mdb";
        //string pass = "";
        string[] data = new string[10];
        BackgroundWorker cust_to_mdb;
        public mach_sync()
        {
            InitializeComponent();
            cust_to_mdb = new BackgroundWorker();
            // Some Background Worker Code
        }
        void cust_to_mdb_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            dash da = new dash();
            da.prgbar = e.ProgressPercentage;
            da.progress_bar.Value = Convert.ToInt32(e.ProgressPercentage);
            da.tmp.Content = "Processing......" + da.prgbar.ToString() + "%";
            da.UpdateLayout();
            //progressBar1.Value = e.ProgressPercentage;
            //Console.WriteLine("Processing......" + da.prgbar.ToString() + "%");
        }
    }
}

任何建议都很棒。我已经使用此应用程序启动了c＃。我是一名全职Web开发人员。