Fix for FlipView : Navigation's button visibility and Transition update

src/MahApps.Metro.Samples/MahApps.Metro.Demo/MahApps.Metro.Demo.Shared/ExampleViews/OtherExamples.xaml

@@ -6,6 +6,8 @@
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:iconPacks="http://metro.mahapps.com/winfx/xaml/iconpacks"
+             xmlns:mx="clr-namespace:MetroDemo.Markup"
+             xmlns:vc="clr-namespace:MetroDemo.ValueConverter"
              mc:Ignorable="d"
              d:DesignHeight="600"
              d:DesignWidth="800"
@@ -20,7 +22,7 @@
                 <Setter Property="TextOptions.TextFormattingMode" Value="Display" />
                 <Setter Property="TextOptions.TextRenderingMode" Value="ClearType" />
             </Style>
-            
+
             <DataTemplate x:Key="ImageDataTemplate" x:Shared="False">
                 <Image Stretch="Fill" Source="{Binding Mode=OneWay, FallbackValue={x:Static DependencyProperty.UnsetValue}}" />
             </DataTemplate>
@@ -110,11 +112,13 @@
             <Grid Grid.IsSharedSizeScope="True">
                 <Grid.ColumnDefinitions>
                     <ColumnDefinition Width="Auto" SharedSizeGroup="Group1" />
+                    <ColumnDefinition Width="Auto" />
                     <ColumnDefinition Width="*" />
                 </Grid.ColumnDefinitions>
                 <Grid.RowDefinitions>
                     <RowDefinition Height="Auto" />
                     <RowDefinition Height="Auto" />
+                    <RowDefinition Height="Auto" />
                 </Grid.RowDefinitions>
                 <CheckBox x:Name="ShowBannerCheckBox"
                           Grid.Column="0"
@@ -139,13 +143,19 @@
                           Margin="5 2"
                           Content="Show NaviButtons"
                           IsChecked="True" />
+                <ComboBox x:Name="Orientation"
+                          ItemsSource="{Binding Source={mx:EnumBindingSource {x:Type Orientation}}, Mode=OneTime}"
+                          SelectedIndex="0"
+                          Grid.Column="0" Grid.Row="2" Grid.ColumnSpan="2"/>
             </Grid>
-            <Controls:FlipView Height="200"
+            <Controls:FlipView x:Name="FlipView1st"
+                               Height="200"
                                Margin="0 0 5 0"
                                IsBannerEnabled="{Binding ElementName=ShowBannerCheckBox, Path=IsChecked, Mode=OneWay}"
                                MouseOverGlowEnabled="{Binding ElementName=ShowMouseOverCheckBox, Path=IsChecked, Mode=OneWay}"
                                CircularNavigation="{Binding ElementName=CircularNaviCheckBox, Path=IsChecked, Mode=OneWay}"
                                IsNavigationEnabled="{Binding ElementName=ShowNaviCheckBox, Path=IsChecked, Mode=OneWay}"
+                               Orientation="{Binding ElementName=Orientation, Path=SelectedValue, Mode=OneWay}"
                                SelectionChanged="FlipView_SelectionChanged">
                 <Controls:FlipView.Items>
                     <Grid Background="#2E8DEF">
@@ -171,18 +181,42 @@
                     </Grid>
                 </Controls:FlipView.Items>
             </Controls:FlipView>
+            <StackPanel Orientation="Horizontal" DataContext="{Binding ElementName=FlipView1st, Mode=OneWay}" HorizontalAlignment="Center">
+                <Controls:NumericUpDown Controls:TextBoxHelper.SelectAllOnFocus="True"
+                                        ButtonsAlignment="Left"
+                                        Interval="1"
+                                        Minimum="1"
+                                        Maximum="{Binding Path=Items.Count, Mode=OneWay}"
+                                        Value="{Binding Path=SelectedIndex, Mode=TwoWay, Converter={vc:Int32IndexToNumberConverter}}"/>
+                <TextBlock VerticalAlignment="Center" Margin="8 0 0 0">
+                    <Run Text="/" />
+                    <Run Text="{Binding Path=Items.Count, Mode=OneWay}" />
+                </TextBlock>
+            </StackPanel>
 
             <Separator Margin="0 5" />
-
-            <Controls:FlipView Height="200"
+            <Controls:FlipView x:Name="FlipView2nd" Height="200"
                                Margin="0 0 5 0"
                                BannerText="Databound Items"
                                IsBannerEnabled="{Binding ElementName=ShowBannerCheckBox, Path=IsChecked, Mode=OneWay}"
                                MouseOverGlowEnabled="{Binding ElementName=ShowMouseOverCheckBox, Path=IsChecked, Mode=OneWay}"
                                CircularNavigation="{Binding ElementName=CircularNaviCheckBox, Path=IsChecked, Mode=OneWay}"
                                IsNavigationEnabled="{Binding ElementName=ShowNaviCheckBox, Path=IsChecked, Mode=OneWay}"
+                               Orientation="{Binding ElementName=Orientation, Path=SelectedValue, Mode=OneWay}"
                                ItemTemplate="{StaticResource ImageDataTemplate}"
                                ItemsSource="{Binding FlipViewImages, Mode=OneWay}" />
+            <StackPanel Orientation="Horizontal" DataContext="{Binding ElementName=FlipView2nd, Mode=OneWay}" HorizontalAlignment="Center">
+                <Controls:NumericUpDown Controls:TextBoxHelper.SelectAllOnFocus="True"
+                                        ButtonsAlignment="Left"
+                                        Interval="1"
+                                        Minimum="1"
+                                        Maximum="{Binding Path=Items.Count, Mode=OneWay}"
+                                        Value="{Binding Path=SelectedIndex, Mode=TwoWay, Converter={vc:Int32IndexToNumberConverter}}"/>
+                <TextBlock VerticalAlignment="Center" Margin="8 0 0 0">
+                    <Run Text="/" />
+                    <Run Text="{Binding Path=Items.Count, Mode=OneWay}" />
+                </TextBlock>
+            </StackPanel>
         </StackPanel>
 
         <Grid Grid.Row="1"

src/MahApps.Metro.Samples/MahApps.Metro.Demo/MahApps.Metro.Demo.Shared/ExampleViews/OtherExamples.xaml.cs

@@ -28,7 +28,8 @@ void Tick(object sender, EventArgs e)
         private void FlipView_SelectionChanged(object sender, SelectionChangedEventArgs e)
         {
             var flipview = ((FlipView)sender);
-            switch (flipview.SelectedIndex) {
+            switch (flipview.SelectedIndex)
+            {
                 case 0:
                     flipview.BannerText = "Cupcakes!";
                     break;

src/MahApps.Metro.Samples/MahApps.Metro.Demo/MahApps.Metro.Demo.Shared/MahApps.Metro.Demo.Shared.projitems

@@ -74,13 +74,15 @@
       <DependentUpon>VSDemo.xaml</DependentUpon>
     </Compile>
     <Compile Include="$(MSBuildThisFileDirectory)MainWindowViewModel.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Markup\EnumBindingSourceExtension.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Navigation\HomePage.xaml.cs">
       <DependentUpon>HomePage.xaml</DependentUpon>
     </Compile>
     <Compile Include="$(MSBuildThisFileDirectory)Navigation\InterestingPage.xaml.cs">
       <DependentUpon>InterestingPage.xaml</DependentUpon>
     </Compile>
     <Compile Include="$(MSBuildThisFileDirectory)ValueConverter\AlbumPriceIsTooMuchConverter.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)ValueConverter\Int32IndexToNumberConverter.cs" />
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="$(MSBuildThisFileDirectory)App.xaml">

src/MahApps.Metro.Samples/MahApps.Metro.Demo/MahApps.Metro.Demo.Shared/Markup/EnumBindingSourceExtension.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Windows.Markup;
+
+namespace MetroDemo.Markup
+{
+
+    /// <summary>
+    /// Markup extension for Enum values.
+    /// </summary>
+    public class EnumBindingSourceExtension
+        : MarkupExtension
+    {
+        private Type _EnumType;
+
+        /// <summary>
+        /// Gets or sets the type of the Enum.
+        /// </summary>
+        /// <exception cref="ArgumentException">Value is not an Enum type.</exception>
+        public Type EnumType
+        {
+            get { return this._EnumType; }
+            set
+            {
+                if (!Object.Equals(value, this.EnumType))
+                {
+                    if (!Object.Equals(value, null) && !(Nullable.GetUnderlyingType(value) ?? value).IsEnum)
+                        throw new ArgumentException("Type must be an Enum.");
+
+                    this._EnumType = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Initializes a new instance of EnumBindingSourceExtension.
+        /// </summary>
+        public EnumBindingSourceExtension() { }
+
+        /// <summary>
+        /// Initializes a new instance of EnumBindingSourceExtension.
+        /// </summary>
+        /// <param name="enumType">The type of the Enum.</param>
+        public EnumBindingSourceExtension(Type enumType)
+        {
+            this.EnumType = enumType;
+        }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="serviceProvider">Object that can provide services for the markup extension.</param>
+        /// <returns>The values of the Enum.</returns>
+        /// <exception cref="InvalidOperationException">The type of the Enum is undefined.</exception>
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {
+            if (Object.Equals(this.EnumType, null))
+                throw new InvalidOperationException("The type of the Enum is undefined.");
+
+            var underlyingEnumType = Nullable.GetUnderlyingType(this.EnumType) ?? this.EnumType;
+            var enumValues = Enum.GetValues(underlyingEnumType);
+            if (underlyingEnumType.Equals(this.EnumType))
+                return enumValues;
+
+            var nullableEnumValues = Array.CreateInstance(underlyingEnumType, enumValues.Length);
+            enumValues.CopyTo(nullableEnumValues, 1);
+            return nullableEnumValues;
+        }
+    }
+}

src/MahApps.Metro.Samples/MahApps.Metro.Demo/MahApps.Metro.Demo.Shared/ValueConverter/Int32IndexToNumberConverter.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Windows.Data;
+using System.Windows.Markup;
+
+namespace MetroDemo.ValueConverter
+{
+    /// <summary>
+    /// Converts an Int32 zero-based index to a one-based number.
+    /// </summary>
+    public class Int32IndexToNumberConverter
+        : MarkupExtension , IValueConverter
+    {
+        /// <summary>
+        /// Returns the value for the target property of this markup extension.
+        /// </summary>
+        /// <param name="serviceProvider">Object that can provide services for the markup extension.</param>
+        /// <returns>Reference to the instance of this Int32IndexToNumberConverter.</returns>
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {
+            return this;
+        }
+
+        /// <summary>
+        /// Converts an Int32 zero-based index to a one-based number.
+        /// </summary>
+        /// <param name="value">Int32 zero-based index.</param>
+        /// <param name="targetType">Ignored.</param>
+        /// <param name="parameter">Ignored.</param>
+        /// <param name="culture">Ignored.</param>
+        /// <returns>Int32 one-based number.</returns>
+        /// <exception cref="FormatException">Incorrect format.</exception>
+        /// <exception cref="InvalidCastException">Unsupported convversion.</exception>
+        /// <exception cref="OverflowException">Out of range of Int32.</exception>
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return System.Convert.ToInt32(value) + 1;
+        }
+
+        /// <summary>
+        /// Converts an Int32 one-based number to a zero-based index.
+        /// </summary>
+        /// <param name="value">Int32 one-based number.</param>
+        /// <param name="targetType">Ignored.</param>
+        /// <param name="parameter">Ignored.</param>
+        /// <param name="culture">Ignored.</param>
+        /// <returns>Int32 zero-based index.</returns>
+        /// <exception cref="FormatException">Incorrect format.</exception>
+        /// <exception cref="InvalidCastException">Unsupported convversion.</exception>
+        /// <exception cref="OverflowException">Out of range of Int32.</exception>
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return System.Convert.ToInt32(value) - 1;
+        }
+    }
+}