fix radiobutton enum binding

Author: unitycoder

PixelArtTool/MainWindow.xaml

@@ -4,7 +4,7 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:PixelArtTool"
-        xmlns:System="clr-namespace:System;assembly=mscorlib" x:Class="PixelArtTool.MainWindow"
+        xmlns:System="clr-namespace:System;assembly=mscorlib" x:Name="window" x:Class="PixelArtTool.MainWindow"
         mc:Ignorable="d"
         Title="PixelArtTool" Height="412.222" Width="739.444" Background="#FF252526" KeyDown="OnKeyDown" KeyUp="OnKeyUp">
 	<Window.CommandBindings>
@@ -18,6 +18,7 @@
 		<Grid.Resources>
 			<local:EnumBooleanConverter x:Key="ComparisonConverter" />
 		</Grid.Resources>
+
 		<ToolBarTray Background="White" Height="36" VerticalAlignment="Top">
 			<ToolBar Band="1" BandIndex="1" VerticalAlignment="Top">
 				<Button x:Name="btnNew" ToolTip="New (clear image)" Click="OnClearButton">

PixelArtTool/MainWindow.xaml.cs

@@ -1,12 +1,16 @@
 using Microsoft.Win32;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
+using System.Globalization;
 using System.IO;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Data;
 using System.Windows.Input;
+using System.Windows.Markup;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 
@@ -28,7 +32,7 @@ public enum ToolMode
     /// <summary>
     /// Interaction logic for MainWindow.xaml
     /// </summary>
-    public partial class MainWindow : Window
+    public partial class MainWindow : Window, INotifyPropertyChanged
     {
         WriteableBitmap canvasBitmap;
         WriteableBitmap gridBitmap;
@@ -73,21 +77,21 @@ public partial class MainWindow : Window
         BlendMode blendMode;
 
         // TEST property binding
-        private ToolMode myVar = ToolMode.Draw;
+        private ToolMode myVar = ToolMode.Fill;
         public ToolMode CurrentTool
         {
             get
             {
-                Console.WriteLine("get:"+myVar);
-                return myVar; }
-            set {
-                Console.WriteLine("set:"+value);
-                myVar = value; }
+                return myVar;
+            }
+            set
+            {
+                myVar = value;
+                OnPropertyChanged();
+            }
         }
 
 
-        //public MyLovelyEnum VeryLovelyEnum { get; set; }
-
         public MainWindow()
         {
             InitializeComponent();
@@ -96,6 +100,7 @@ public MainWindow()
 
         void Start()
         {
+            // needed for binding
             DataContext = this;
 
             // setup background grid
@@ -696,11 +701,9 @@ void OnKeyDown(object sender, KeyEventArgs e)
             {
                 case Key.B: // brush
                     CurrentTool = ToolMode.Draw;
-                    Console.WriteLine("drawmode");
                     break;
                 case Key.F: // floodfill
                     CurrentTool = ToolMode.Fill;
-                    Console.WriteLine("fillmode");
                     break;
                 case Key.LeftShift: // left shift
                     lblToolInfo.Content = "Straight Lines";
@@ -932,23 +935,25 @@ private void OnToolChanged(object sender, RoutedEventArgs e)
             //Enum.TryParse(tag, out currentTool);
         }
 
-
+        // https://github.com/crclayton/WPF-DataBinding-Example
+        public event PropertyChangedEventHandler PropertyChanged;
+        private void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
 
     } // class
 
+    // https://stackoverflow.com/a/2908885/5452781
     public class EnumBooleanConverter : IValueConverter
     {
         public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
         {
-            Console.WriteLine("valueA:"+ value);
-            Console.WriteLine("parameter:" + parameter);
             return value?.Equals(parameter);
         }
 
         public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
         {
-            Console.WriteLine("valueB:" + value);
-            Console.WriteLine("parameter:" + parameter);
             return value?.Equals(true) == true ? parameter : Binding.DoNothing;
         }
     }