c# WPF 如何在 xaml window 加載時顯示我的進度條？

Question

我正在嘗試顯示我的進度條，而我的 WPF window 正在加載。 我成功填充了進度條，但它沒有顯示 請參閱屏幕截圖，看看我的意思是顯示ProgressBar 但是當 windows 已完全加載時，它會顯示 window 的每個組件何時加載。 當我在每個方法的末尾放置一些 MessageBox 來加載像這個屏幕截圖和這個屏幕截圖這樣的組件時，它正在做我想要的正確行為，所以我的問題是如何在 xaml window 正在加載時顯示我的進度條？ 任何幫助，將不勝感激。

提前致謝

   private void DoWorkButton_Click(object sender, RoutedEventArgs e)
       {

             testProgressBar.Visibility = Visibility.Visible;
              ProgressTextblock.Visibility = Visibility.Visible;
               BackgroundWorker worker = new BackgroundWorker();
               worker.RunWorkerCompleted += worker_RunWorkerCompleted;
                worker.WorkerReportsProgress = true;
                worker.DoWork += worker_doWork;
                worker.ProgressChanged += worker_ProgressChanged;
                 worker.RunWorkerAsync();
    }

    private void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        testProgressBar.Value = e.ProgressPercentage;
        ProgressTextblock.Text = (string)e.UserState;
    }

    private void worker_doWork(object sender, DoWorkEventArgs e)
    {
        var worker = sender as BackgroundWorker;
        worker.ReportProgress(0, String.Format("Chargement des composants de la fenetre"));



    }

    private void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
        MessageBox.Show("Fenetre chargée normalement");

    }

我在調用加載 window 的每個方法中都像這樣填充進度條

Answer 1

這就是您設置訂單的方式，我認為像這樣訂購它應該可以解決它：

 private void DoWorkButton_Click(object sender, RoutedEventArgs e)
   {
         testProgressBar.Visibility = Visibility.Visible;
         ProgressTextblock.Visibility = Visibility.Visible;
         BackgroundWorker worker = new BackgroundWorker();
         worker.WorkerReportsProgress = true; 
         worker.DoWork += worker_doWork;                         
         worker.ProgressChanged += worker_ProgressChanged;
         worker.RunWorkerCompleted += worker_RunWorkerCompleted;
         worker.RunWorkerAsync();
}