Besides using a BackgroundWorker, that is…

I have a text box and a button. When I press the button, the text box is supposed to display 0, then count up once per second from 0 to 10. I can establish a bind between a string property and the text box’s text, but when I press the button, it waits 10 seconds, then displays “10” in the box.

Here is the XAML:

<Window x:Class="Generic_WPF.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Generic_WPF"
        mc:Ignorable="d"
        x:Name="_this"
        Title="MainWindow" Height="1024" Width="768">

        <TextBox x:Name="Text_Output" 
                 Margin="20,80,20,20" 
                 TextWrapping="Wrap" 
                 DataContext="{Binding ElementName=_this}" 
                 Text="{Binding TheText}" />
</Window>

and here is the C# code:

public partial class MainWindow : Window
{
  public static readonly DependencyProperty TheTextProperty = DependencyProperty.Register("TheText", typeof(string), typeof(MainWindow));

  public string TheText 
  { 
      get { return (string)GetValue(TheTextProperty); }
      set { SetValue(TheTextProperty, value); }
  }

  private int TheCount = 0;

  private void Button_Run_Click(object sender, RoutedEventArgs e)
  {
      TheCount = 0;
      while (TheCount <= 10)
      {
          TheText = TheCount.ToString();
          DateTime StartTime = DateTime.Now;
          while ((DateTime.Now - StartTime).TotalSeconds < 1.0) ;
          TheCount++;
      }
  }
}

Does there need to be something in Button_Run_Click to signal that the GUI needs to be refreshed (similar to (control).Refresh() and Application.DoEvents() in Windows Forms)? Or does something need to be added on the XAML side?