Implement data bindings using DependencyPropertys

Tasks/UrlTester/MainWindow.xaml

@@ -5,6 +5,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:DT3"
         mc:Ignorable="d"
+        DataContext="{Binding RelativeSource={RelativeSource Self}}"
         Title="MainWindow"
         Height="450"
         Width="800">
@@ -48,8 +49,8 @@
                                     Value="5"/>
                         </Style>
                     </StackPanel.Resources>
-                    <TextBlock x:Name="bytesBox" />
+                    <TextBlock Text="{Binding Size, StringFormat={}{0} bytes}" />
-                    <TextBlock x:Name="timeBox" />
+                    <TextBlock Text="{Binding Time, StringFormat={}{0} ms}" />
                 </StackPanel>
                 <Grid>
                     <Grid.RowDefinitions>
@@ -64,6 +65,7 @@
                     <ProgressBar x:Name="timeBar"
                                  Minimum="0"
                                  Maximum="1000"
+                                 Value="{Binding Time}"
                                  Grid.ColumnSpan="3" />
                     <TextBlock Grid.Row="1"
                                Grid.Column="1"

Tasks/UrlTester/MainWindow.xaml.cs

@@ -18,6 +18,16 @@ namespace UrlTester;
 /// </summary>
 public partial class MainWindow : Window
 {
+    public static readonly DependencyProperty SizeProperty = DependencyProperty.Register(
+        "Size",
+        typeof(int),
+        typeof(MainWindow));
+
+    public static readonly DependencyProperty TimeProperty = DependencyProperty.Register(
+        "Time",
+        typeof(long),
+        typeof(MainWindow));
+
     public MainWindow()
     {
         InitializeComponent();
@@ -36,9 +46,9 @@ public partial class MainWindow : Window
         tester.PageLoaded += (_, size) =>
         {
             stopWatch.Stop();
-            bytesBox.Text = $"{size} bytes";
+            SetValue(SizeProperty, size);
-            timeBox.Text = $"{stopWatch.ElapsedMilliseconds} ms";
+            SetValue(TimeProperty, stopWatch.ElapsedMilliseconds);
-            timeBar.Value = stopWatch.ElapsedMilliseconds;
+            Debug.WriteLine("");
         };
 
         _ = tester.GetUrlAsync(urlBox.Text);