Silverlight Metro Context Menu

Here is a quick example project for creating a Silverlight Metro styled Context Menu.

Live Demo:   http://stevenhollidge.com/blog-source-code/metrocontextmenu

<Application x:Class="MetroContextMenu.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:toolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit">
    <Application.Resources>
        <Style TargetType="toolkit:ContextMenu">
            <Setter Property="Background" Value="White" />
            <Setter Property="BorderThickness" Value="1" />
            <Setter Property="BorderBrush" Value="Black" />
            <Setter Property="Padding" Value="0" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="toolkit:ContextMenu">
                        <Border Background="{TemplateBinding Background}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}"
                                CornerRadius="2">
                            <Grid>
                                <ItemsPresenter Margin="{TemplateBinding Padding}" />
                            </Grid>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <Style TargetType="toolkit:MenuItem">
            <Setter Property="FontFamily" Value="Segoe UI" />
            <Setter Property="FontSize" Value="14" />
            <Setter Property="Background" Value="Transparent" />
            <Setter Property="BorderBrush" Value="Transparent" />
            <Setter Property="Padding" Value="20,2,20,2" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="toolkit:MenuItem">
                        <Grid>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Normal" />
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0"
                                                             Storyboard.TargetName="Presenter"
                                                             Storyboard.TargetProperty="Opacity"
                                                             To="0.1" />
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="FocusStates">
                                    <VisualState x:Name="Unfocused" />
                                    <VisualState x:Name="Focused">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0"
                                                             Storyboard.TargetName="Bg"
                                                             Storyboard.TargetProperty="Opacity"
                                                             To="1" />
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Rectangle x:Name="Bg"
                                       Fill="#34C5EBFF"
                                       Opacity="0"
                                       Stroke="#8071CBF1"
                                       StrokeThickness="1" />
                            <Grid>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="Auto" />
                                </Grid.ColumnDefinitions>

                                <ContentPresenter x:Name="Presenter"
                                                  Margin="{TemplateBinding Padding}"
                                                  Content="{TemplateBinding Header}"
                                                  ContentTemplate="{TemplateBinding HeaderTemplate}" />
                            </Grid>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Application.Resources>
</Application>

using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Interactivity;

namespace MetroContextMenu
{
    public class TextBoxCutCopyPasteContextMenuBehavior : Behavior<TextBox>
    {
        private readonly ContextMenu contextMenu;
        private readonly MenuItem copyMenuItem;
        private readonly MenuItem cutMenuItem;
        private readonly MenuItem pasteMenuItem;

        public TextBoxCutCopyPasteContextMenuBehavior()
        {
            contextMenu = new ContextMenu();

            cutMenuItem = new MenuItem { Header = "Cut" };
            cutMenuItem.Click += CutClick;
            contextMenu.Items.Add(cutMenuItem);

            copyMenuItem = new MenuItem { Header = "Copy" };
            copyMenuItem.Click += CopyClick;
            contextMenu.Items.Add(copyMenuItem);

            pasteMenuItem = new MenuItem { Header = "Paste" };
            pasteMenuItem.Click += PasteClick;
            contextMenu.Items.Add(pasteMenuItem);
        }

        void PasteClick(object sender, RoutedEventArgs e)
        {
            AssociatedObject.SelectedText = Clipboard.GetText();
            contextMenu.IsOpen = false;
        }

        void CutClick(object sender, RoutedEventArgs e)
        {
            Clipboard.SetText(AssociatedObject.SelectedText);
            AssociatedObject.SelectedText = string.Empty;
            AssociatedObject.Focus();
            contextMenu.IsOpen = false;
        }

        void CopyClick(object sender, RoutedEventArgs e)
        {
            Clipboard.SetText(AssociatedObject.SelectedText);
            AssociatedObject.Focus();
            contextMenu.IsOpen = false;
        }

        protected override void OnAttached()
        {
            AssociatedObject.MouseRightButtonDown += AssociatedObject_MouseRightButtonDown;
            AssociatedObject.MouseRightButtonUp += AssociatedObjectMouseRightButtonUp;
            AssociatedObject.SetValue(ContextMenuService.ContextMenuProperty, contextMenu);
            base.OnAttached();
        }

        void AssociatedObjectMouseRightButtonUp(object sender, MouseButtonEventArgs e)
        {
            pasteMenuItem.IsEnabled = Clipboard.ContainsText();

            if (string.IsNullOrEmpty(AssociatedObject.SelectedText))
            {
                cutMenuItem.IsEnabled = false;
                copyMenuItem.IsEnabled = false;
            }
            else
            {
                cutMenuItem.IsEnabled = true;
                copyMenuItem.IsEnabled = true;
            }

            contextMenu.IsOpen = true;
        }

        void AssociatedObject_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            e.Handled = true;
        }

        protected override void OnDetaching()
        {
            AssociatedObject.MouseRightButtonDown -= AssociatedObject_MouseRightButtonDown;
            AssociatedObject.MouseRightButtonUp -= AssociatedObjectMouseRightButtonUp;
            base.OnDetaching();
        }
    }
}

Source code:  https://github.com/stevenh77/MetroContextMenu