How to create a menu in WPF that has Microsoft Web

问题:

We have been tasked with designing an enterprise application in WPF that will replace a battleship grey Winforms application with a modern look and feel.

We like the look and feel that Microsoft web applications currently possess:

We could create these menus in WPF in the usual way:

<DockPanel>
    <Menu DockPanel.Dock="Top">
        <MenuItem Header="_File">
            <MenuItem Header="_New" />
            <MenuItem Header="_Open" />
            <MenuItem Header="_Save" />
            <Separator />
            <MenuItem Header="_Exit" />
        </MenuItem>
    </Menu>
    <TextBox AcceptsReturn="True" />
</DockPanel>

But we'd get something that looks like a Winforms menu.

I've seen some rather impressive styling efforts like this one, but they all seem to have the same familiar Winforms shape. I've also seen menus in libraries like MahApps Metro, but these strike us as too spartan.

Is the WPF Menu control flexible enough to be styled as shown in the picture above, or should we go another route like building a custom menu control from Stack Panels and Lists? What are the tradeoffs?

Bonus points (i.e. a bounty) will be awarded for xaml/code that does exactly this.

An example of this menu style in action:
https://www.visualstudio.com/

回答1:

WPF was really designed with the possibility to change the look and behavior of every out-of-the-box mechanisms / controls (buttons, menus, treeview, etc.). So, in general, it's better to do this rather than to rewrite everything. For example, if you redesign your custom menu, you'll have to think about keyboard, UI automation, etc...

So, I gave a shot at your example and tried to build a minimum working sample - pure XAML - that mimics VS online menu (I've also added the hover background color change that's not by default in WPF's menu).

Here is the result and, as you see, it looks very similar:

Here is the XAML. I've chosen to use a custom control template per each MenuItem. I think it's quite practical when you need to really customize every item.

<Window x:Class="WpfApp1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="550" Width="525">
    <Window.Resources>
        <BooleanToVisibilityConverter x:Key="btv" />

        <!-- style a top level menu item -->
        <ControlTemplate x:Key="VsMenuTop" TargetType="MenuItem">
            <StackPanel TextBlock.FontSize="15px" Height="40">
                <!-- label, icons, etc. -->
                <Label Content="{TemplateBinding Header}" Margin="5" Foreground="White" />

                <!-- sub items -->
                <Popup IsOpen="{TemplateBinding IsSubmenuOpen}" AllowsTransparency="True" Focusable="False">
                    <Border BorderThickness="1" Background="White" BorderBrush="#E0E0E0">
                        <StackPanel IsItemsHost="True" />
                    </Border>
                </Popup>
                <StackPanel.Style>
                    <Style TargetType="StackPanel">
                        <Style.Triggers>
                            <Trigger Property="IsMouseOver"  Value="True">
                                <Setter Property="Background" Value="#106EBE" />
                            </Trigger>
                        </Style.Triggers>
                    </Style>
                </StackPanel.Style>
            </StackPanel>
        </ControlTemplate>

        <!-- style a non-top level menu item -->
        <ControlTemplate x:Key="VsMenuSub" TargetType="MenuItem">
            <DockPanel TextBlock.FontSize="15px" x:Name="panel">
                <!-- label, icons, etc. -->
                <Image Source="{Binding Icon, RelativeSource={RelativeSource TemplatedParent}}" Width="20" Margin="5,0" />
                <Label Content="{TemplateBinding Header}" Foreground="Black" Margin="0,5,5,5" />

                <!-- draw the right arrow only if this menu item has sub items -->
                <Image Source="icon_right.png" Visibility="{Binding HasItems, Converter={StaticResource btv}, RelativeSource={RelativeSource TemplatedParent}}" />

                <!-- sub items -->
                <Popup IsOpen="{TemplateBinding IsSubmenuOpen}" AllowsTransparency="True" Focusable="False" Placement="Right" >
                    <Border BorderThickness="1" Background="White" BorderBrush="#E0E0E0">
                        <StackPanel IsItemsHost="True" />
                    </Border>
                </Popup>
            </DockPanel>
            <ControlTemplate.Triggers>
                <Trigger Property="IsHighlighted" Value="True">
                    <Setter Property="Background" TargetName="panel" Value="#EFF6FC" />
                </Trigger>
            </ControlTemplate.Triggers>
        </ControlTemplate>

        <!-- style the separator -->
        <ControlTemplate x:Key="VsMenuSep" TargetType="Separator">
            <Border Height="1" Background="#E0E0E0" />
        </ControlTemplate>

        <!-- style the VSOnline -->
        <ControlTemplate x:Key="VsOnline" TargetType="MenuItem">
            <StackPanel TextBlock.FontSize="15px" Height="40" Orientation="Horizontal" Background="#005A9E">
                <Label Content="{TemplateBinding Header}" Margin="5" Foreground="White" />
                <Image Source="icon_down.png" Height="20" Margin="0,0,5,0" />

                <!-- sub items -->
                <Popup IsOpen="{TemplateBinding IsSubmenuOpen}" AllowsTransparency="True" Focusable="False">
                    <Border BorderThickness="1" Background="White" BorderBrush="#E0E0E0">
                        <StackPanel IsItemsHost="True" />
                    </Border>
                </Popup>
            </StackPanel>
        </ControlTemplate>

        <!-- some base stuff -->
        <Style TargetType="Menu">
            <Setter Property="Background" Value="#0078D7" />
            <Setter Property="Height" Value="40px" />
        </Style>

    </Window.Resources>

    <!-- the real app and real menu -->
    <StackPanel>
        <Menu IsMainMenu="True">
            <MenuItem Header="_VSOnline" Template="{StaticResource VsOnline}" >
                <MenuItem Header="_Whatever" Template="{StaticResource VsMenuSub}" />
            </MenuItem>
            <MenuItem Header="_Dashboards" Template="{StaticResource VsMenuTop}">
                <MenuItem Header="_Overview" Template="{StaticResource VsMenuSub}" />
            </MenuItem>
            <MenuItem Header="_Code" Template="{StaticResource VsMenuTop}">
                <MenuItem Header="_Files" Template="{StaticResource VsMenuSub}" />
                <MenuItem Header="_Commits" Template="{StaticResource VsMenuSub}" />
                <MenuItem Header="_Pushes" Template="{StaticResource VsMenuSub}" />
            </MenuItem>
            <MenuItem Header="_Work" Template="{StaticResource VsMenuTop}">
                <MenuItem Header="_Backlogs" Template="{StaticResource VsMenuSub}" Icon="icon_backlogs.png" />
                <MenuItem Header="_Queries" Template="{StaticResource VsMenuSub}" Icon="icon_queries.png" />
                <Separator Template="{StaticResource VsMenuSep}" />
                <MenuItem Header="_New Work Item" Template="{StaticResource VsMenuSub}">
                    <MenuItem Header="_Epic" Template="{StaticResource VsMenuSub}" Icon="icon_epic.png" />
                    <MenuItem Header="_Feature" Template="{StaticResource VsMenuSub}" Icon="icon_feature.png" />
                    <MenuItem Header="_Issue" Template="{StaticResource VsMenuSub}" Icon="icon_issue.png" />
                    <MenuItem Header="_Task" Template="{StaticResource VsMenuSub}" Icon="icon_task.png" />
                    <MenuItem Header="_Test Case" Template="{StaticResource VsMenuSub}" Icon="icon_testcase.png" />
                    <MenuItem Header="_User Story" Template="{StaticResource VsMenuSub}" Icon="icon_userstory.png" />
                </MenuItem>
                <MenuItem Header="_Bug" Template="{StaticResource VsMenuSub}" Icon="icon_bug.png" />
            </MenuItem>
        </Menu>
    </StackPanel>
</Window>

The project is available here on github.

回答2:

You are probably looking for some Wpf Theme to start with.

Such as http://brianlagunas.com/free-metro-light-and-dark-themes-for-wpf-and-silverlight-microsoft-controls/ or have a look at that SO answer: Any free WPF themes?

Then you probably would want to customize it even more with look and feel you are looking for.

回答3:

You could use something like: http://materialdesigninxaml.net

回答4:

This is the default menu, but white, you can change the background color, text font, height, and everything else you want just by editing this style.

Here your MainWindow.xaml

<Menu IsMainMenu="True" HorizontalContentAlignment="Left" Background="Transparent"   >
    <MenuItem Header="File" HorizontalContentAlignment="Left"  >
        <MenuItem Header="Menu Item 01" Command="{Binding MenuCommand}" CommandParameter="Param01"  >
            <MenuItem.Icon>
                <Image Source="Images/settings.png" Height="20"/>
            </MenuItem.Icon>
        </MenuItem>
        <MenuItem Header="Menu Item 02" Command="{Binding MenuCommand}" CommandParameter="Param02"  >
            <MenuItem.Icon>
                <Image Source="Images/settings.png" Height="20"/>
            </MenuItem.Icon>
        </MenuItem>
        <Separator />
        <MenuItem Header="LogOff"   Command="{Binding MenuCommand}" CommandParameter="LogOff" >
            <MenuItem.Icon>
                <Image Source="Images/logoff.png" Height="20"/>
            </MenuItem.Icon>
        </MenuItem>
    </MenuItem>
</Menu>

style in app.xaml file

<!-- Menu Begin -->
<!-- Menu --> 
<Style  TargetType="{x:Type Menu}">
    <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.MenuBarBrushKey}}"/>
    <Setter Property="FontFamily" Value="{DynamicResource {x:Static SystemFonts.MenuFontFamilyKey}}"/>
    <Setter Property="FontSize" Value="{DynamicResource {x:Static SystemFonts.MenuFontSizeKey}}"/>
    <Setter Property="FontStyle" Value="{DynamicResource {x:Static SystemFonts.MenuFontStyleKey}}"/>
    <Setter Property="FontWeight" Value="{DynamicResource {x:Static SystemFonts.MenuFontWeightKey}}"/>
    <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.MenuTextBrushKey}}"/>
    <Setter Property="VerticalContentAlignment" Value="Center"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Menu}">
                <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
                    <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<!-- Level 0 -->
<ControlTemplate x:Key="{x:Static MenuItem.TopLevelItemTemplateKey}" TargetType="{x:Type MenuItem}">
    <Border x:Name="templateRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
        <Grid x:Name="Grid" VerticalAlignment="Center">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="Auto"/>
            </Grid.ColumnDefinitions>
            <ContentPresenter x:Name="Icon" Content="{TemplateBinding Icon}" ContentSource="Icon" HorizontalAlignment="Center" Height="16" Margin="3" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center" Width="16" Visibility="Collapsed"/>
            <Path x:Name="GlyphPanel" Data="F1M10,1.2L4.7,9.1 4.5,9.1 0,5.2 1.3,3.5 4.3,6.1 8.3,0 10,1.2z" Fill="{TemplateBinding Foreground}" FlowDirection="LeftToRight" Margin="3" Visibility="Collapsed" VerticalAlignment="Center"/>
            <ContentPresenter x:Name="ContentPresenter" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.Column="1" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
            <Popup x:Name="PART_Popup" AllowsTransparency="True" Focusable="False" IsOpen="{Binding IsSubmenuOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{DynamicResource {x:Static SystemParameters.MenuPopupAnimationKey}}" Placement="Bottom" >
                <Border x:Name="SubMenuBorder" BorderBrush="#FF999999" BorderThickness="1" Background="White" Padding="2">
                    <ScrollViewer x:Name="SubMenuScrollViewer" Style="{DynamicResource {ComponentResourceKey ResourceId=MenuScrollViewer, TypeInTargetAssembly={x:Type FrameworkElement}}}">
                        <Grid x:Name="Grid1" RenderOptions.ClearTypeHint="Enabled">
                            <Canvas x:Name="Canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                <Rectangle x:Name="OpaqueRect" Fill="{Binding Background, ElementName=SubMenuBorder}" Height="{Binding ActualHeight, ElementName=SubMenuBorder}" Width="{Binding ActualWidth, ElementName=SubMenuBorder}"/>
                            </Canvas>
                            <Rectangle x:Name="Rectangle" Fill="Transparent" HorizontalAlignment="Left" Margin="29,2,0,2" Width="1"/>
                            <ItemsPresenter x:Name="ItemsPresenter"  KeyboardNavigation.DirectionalNavigation="Cycle" Grid.IsSharedSizeScope="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" KeyboardNavigation.TabNavigation="Cycle"/>
                        </Grid>
                    </ScrollViewer>
                </Border>
            </Popup>
        </Grid>
    </Border>
    <ControlTemplate.Triggers>
        <Trigger Property="IsSuspendingPopupAnimation" Value="True">
            <Setter Property="PopupAnimation" TargetName="PART_Popup" Value="None"/>
        </Trigger>
        <Trigger Property="Icon" Value="{x:Null}">
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsChecked" Value="True">
            <Setter Property="Visibility" TargetName="GlyphPanel" Value="Visible"/>
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsHighlighted" Value="True">
            <Setter Property="Background" TargetName="templateRoot" Value="#3D26A0DA"/>
            <Setter Property="BorderBrush" TargetName="templateRoot" Value="#FF26A0DA"/>
        </Trigger>
        <Trigger Property="IsEnabled" Value="False">
            <Setter Property="TextElement.Foreground" TargetName="templateRoot" Value="#FF707070"/>
            <Setter Property="Fill" TargetName="GlyphPanel" Value="#FF707070"/>
        </Trigger>
        <Trigger Property="CanContentScroll" SourceName="SubMenuScrollViewer" Value="False">
            <Setter Property="Canvas.Top" TargetName="OpaqueRect" Value="{Binding VerticalOffset, ElementName=SubMenuScrollViewer}"/>
            <Setter Property="Canvas.Left" TargetName="OpaqueRect" Value="{Binding HorizontalOffset, ElementName=SubMenuScrollViewer}"/>
        </Trigger>
    </ControlTemplate.Triggers>
</ControlTemplate>

<!-- Level 0 -->
<ControlTemplate x:Key="{x:Static MenuItem.TopLevelHeaderTemplateKey}" TargetType="{x:Type MenuItem}">
    <Border x:Name="templateRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
        <Grid x:Name="Grid" VerticalAlignment="Center">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="Auto"/>
            </Grid.ColumnDefinitions>
            <ContentPresenter x:Name="Icon" Content="{TemplateBinding Icon}" ContentSource="Icon" HorizontalAlignment="Center" Height="16" Margin="3" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center" Width="16" Visibility="Collapsed"/>
            <Path x:Name="GlyphPanel" Data="F1M10,1.2L4.7,9.1 4.5,9.1 0,5.2 1.3,3.5 4.3,6.1 8.3,0 10,1.2z" Fill="{TemplateBinding Foreground}" FlowDirection="LeftToRight" Margin="3" Visibility="Collapsed" VerticalAlignment="Center"/>
            <ContentPresenter x:Name="ContentPresenter" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.Column="1" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
            <Popup x:Name="PART_Popup" AllowsTransparency="True" Focusable="False" IsOpen="{Binding IsSubmenuOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{DynamicResource {x:Static SystemParameters.MenuPopupAnimationKey}}" Placement="Bottom" >
                <Border x:Name="SubMenuBorder" BorderBrush="#FF999999" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.MenuColorKey}}" Padding="2">
                    <ScrollViewer x:Name="SubMenuScrollViewer" Style="{DynamicResource {ComponentResourceKey ResourceId=MenuScrollViewer, TypeInTargetAssembly={x:Type FrameworkElement}}}">
                        <Grid x:Name="Grid1" RenderOptions.ClearTypeHint="Enabled">
                            <Canvas x:Name="Canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                <Rectangle x:Name="OpaqueRect" Fill="{Binding Background, ElementName=SubMenuBorder}" Height="{Binding ActualHeight, ElementName=SubMenuBorder}" Width="{Binding ActualWidth, ElementName=SubMenuBorder}"/>
                            </Canvas>
                            <Rectangle x:Name="Rectangle" Fill="Transparent" HorizontalAlignment="Left" Margin="29,2,0,2" Width="1"/>
                            <ItemsPresenter x:Name="ItemsPresenter"  KeyboardNavigation.DirectionalNavigation="Cycle" Grid.IsSharedSizeScope="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" KeyboardNavigation.TabNavigation="Cycle"/>
                        </Grid>
                    </ScrollViewer>
                </Border>
            </Popup>
        </Grid>
    </Border>
    <ControlTemplate.Triggers>
        <Trigger Property="IsSuspendingPopupAnimation" Value="True">
            <Setter Property="PopupAnimation" TargetName="PART_Popup" Value="None"/>
        </Trigger>
        <Trigger Property="Icon" Value="{x:Null}">
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsChecked" Value="True">
            <Setter Property="Visibility" TargetName="GlyphPanel" Value="Visible"/>
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsHighlighted" Value="True">
            <Setter Property="Background" TargetName="templateRoot" Value="#3D26A0DA"/>
            <Setter Property="BorderBrush" TargetName="templateRoot" Value="#FF26A0DA"/>
        </Trigger>
        <Trigger Property="IsEnabled" Value="False">
            <Setter Property="TextElement.Foreground" TargetName="templateRoot" Value="#FF707070"/>
            <Setter Property="Fill" TargetName="GlyphPanel" Value="#FF707070"/>
        </Trigger>
        <Trigger Property="CanContentScroll" SourceName="SubMenuScrollViewer" Value="False">
            <Setter Property="Canvas.Top" TargetName="OpaqueRect" Value="{Binding VerticalOffset, ElementName=SubMenuScrollViewer}"/>
            <Setter Property="Canvas.Left" TargetName="OpaqueRect" Value="{Binding HorizontalOffset, ElementName=SubMenuScrollViewer}"/>
        </Trigger>
    </ControlTemplate.Triggers>
</ControlTemplate>

<!-- Level 1,2,3,4,... -->
<ControlTemplate x:Key="{x:Static MenuItem.SubmenuHeaderTemplateKey}" TargetType="{x:Type MenuItem}">
    <Border x:Name="templateRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
        <Grid Margin="-1">
            <Grid.ColumnDefinitions>
                <ColumnDefinition MinWidth="22" SharedSizeGroup="MenuItemIconColumnGroup" Width="Auto"/>
                <ColumnDefinition Width="13"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="30"/>
                <ColumnDefinition SharedSizeGroup="MenuItemIGTColumnGroup" Width="Auto"/>
                <ColumnDefinition Width="20"/>
            </Grid.ColumnDefinitions>
            <ContentPresenter x:Name="Icon" Content="{TemplateBinding Icon}" ContentSource="Icon" HorizontalAlignment="Center" Height="16" Margin="3" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center" Width="16"/>
            <Border x:Name="GlyphPanel" BorderBrush="#FF26A0DA" BorderThickness="1" Background="#3D26A0DA" Height="22" Margin="-1,0,0,0" Visibility="Hidden" VerticalAlignment="Center" Width="22" >
                <Path x:Name="Glyph" Data="{DynamicResource ŧ}" Fill="#FF212121" FlowDirection="LeftToRight" Height="11" Width="9"/>
            </Border>
            <ContentPresenter ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.Column="2" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" HorizontalAlignment="Left" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center"/>
            <TextBlock Grid.Column="4" Margin="{TemplateBinding Padding}" Opacity="0.7" Text="{TemplateBinding InputGestureText}" VerticalAlignment="Center"/>
            <Path x:Name="RightArrow" Grid.Column="5" Data="M0,0L4,3.5 0,7z" Fill="#FF212121" HorizontalAlignment="Left" Margin="10,0,0,0" VerticalAlignment="Center"/>
            <Popup x:Name="PART_Popup" AllowsTransparency="True" Focusable="False" HorizontalOffset="-2" IsOpen="{Binding IsSubmenuOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{DynamicResource {x:Static SystemParameters.MenuPopupAnimationKey}}" Placement="Right" VerticalOffset="-3">
                <Border x:Name="SubMenuBorder" BorderBrush="#FF999999" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.MenuColorKey}}" Padding="2">
                    <ScrollViewer x:Name="SubMenuScrollViewer" Style="{DynamicResource {ComponentResourceKey ResourceId=MenuScrollViewer, TypeInTargetAssembly={x:Type FrameworkElement}}}">
                        <Grid RenderOptions.ClearTypeHint="Enabled">
                            <Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
                                <!--Fill="{Binding Background, ElementName=SubMenuBorder}" White  #FFF0F0F0-->
                                <Rectangle x:Name="OpaqueRect" Fill="{Binding Background, ElementName=SubMenuBorder}" Height="{Binding ActualHeight, ElementName=SubMenuBorder}" Width="{Binding ActualWidth, ElementName=SubMenuBorder}"/>
                            </Canvas>
                            <Rectangle Fill="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}" HorizontalAlignment="Left" Margin="29,2,0,2" Width="1"/>
                            <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Cycle" Grid.IsSharedSizeScope="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" KeyboardNavigation.TabNavigation="Cycle"/>
                        </Grid>
                    </ScrollViewer>
                </Border>
            </Popup>
        </Grid>
    </Border>
    <ControlTemplate.Triggers>
        <Trigger Property="IsSuspendingPopupAnimation" Value="True">
            <Setter Property="PopupAnimation" TargetName="PART_Popup" Value="None"/>
        </Trigger>
        <Trigger Property="Icon" Value="{x:Null}">
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsChecked" Value="True">
            <Setter Property="Visibility" TargetName="GlyphPanel" Value="Visible"/>
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsHighlighted" Value="True">
            <Setter Property="Background" TargetName="templateRoot" Value="Transparent"/>
            <Setter Property="BorderBrush" TargetName="templateRoot" Value="#FF26A0DA"/>
        </Trigger>
        <Trigger Property="IsEnabled" Value="False">
            <Setter Property="TextElement.Foreground" TargetName="templateRoot" Value="#FF707070"/>
            <Setter Property="Fill" TargetName="Glyph" Value="#FF707070"/>
            <Setter Property="Fill" TargetName="RightArrow" Value="#FF707070"/>
        </Trigger>
        <Trigger Property="CanContentScroll" SourceName="SubMenuScrollViewer" Value="False">
            <Setter Property="Canvas.Top" TargetName="OpaqueRect" Value="{Binding VerticalOffset, ElementName=SubMenuScrollViewer}"/>
            <Setter Property="Canvas.Left" TargetName="OpaqueRect" Value="{Binding HorizontalOffset, ElementName=SubMenuScrollViewer}"/>
        </Trigger>
    </ControlTemplate.Triggers>
</ControlTemplate>
<!-- Level 1,2,3,4,... -->
<ControlTemplate x:Key="{x:Static MenuItem.SubmenuItemTemplateKey}" TargetType="{x:Type MenuItem}">
    <Border x:Name="templateRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
        <Grid Margin="-1">
            <Grid.ColumnDefinitions>
                <ColumnDefinition MinWidth="22" SharedSizeGroup="MenuItemIconColumnGroup" Width="Auto"/>
                <ColumnDefinition Width="13"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="30"/>
                <ColumnDefinition SharedSizeGroup="MenuItemIGTColumnGroup" Width="Auto"/>
                <ColumnDefinition Width="20"/>
            </Grid.ColumnDefinitions>
            <ContentPresenter x:Name="Icon" Content="{TemplateBinding Icon}" ContentSource="Icon" HorizontalAlignment="Center" Height="16" Margin="3" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center" Width="16"/>
            <Border x:Name="GlyphPanel" BorderBrush="#FF26A0DA" BorderThickness="1" Background="#3D26A0DA" ClipToBounds="False" HorizontalAlignment="Center" Height="22" Margin="-1,0,0,0" Visibility="Hidden" VerticalAlignment="Center" Width="22">
                <Path x:Name="Glyph" Data="F1M10,1.2L4.7,9.1 4.5,9.1 0,5.2 1.3,3.5 4.3,6.1 8.3,0 10,1.2z" Fill="#FF212121" FlowDirection="LeftToRight" Height="11" Width="10"/>
            </Border>
            <ContentPresenter x:Name="menuHeaderContainer" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.Column="2" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" HorizontalAlignment="Left" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center"/>
            <TextBlock x:Name="menuGestureText" Grid.Column="4" Margin="{TemplateBinding Padding}" Opacity="0.7" Text="{TemplateBinding InputGestureText}" VerticalAlignment="Center"/>
        </Grid>
    </Border>
    <ControlTemplate.Triggers>
        <Trigger Property="Icon" Value="{x:Null}">
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsChecked" Value="True">
            <Setter Property="Visibility" TargetName="GlyphPanel" Value="Visible"/>
            <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
        </Trigger>
        <Trigger Property="IsHighlighted" Value="True">
            <Setter Property="Background" TargetName="templateRoot" Value="#3D26A0DA"/>
            <Setter Property="BorderBrush" TargetName="templateRoot" Value="#FF26A0DA"/>
        </Trigger>
        <Trigger Property="IsEnabled" Value="False">
            <Setter Property="TextElement.Foreground" TargetName="templateRoot" Value="#FF707070"/>
            <Setter Property="Fill" TargetName="Glyph" Value="#FF707070"/>
        </Trigger>
        <MultiTrigger>
            <MultiTrigger.Conditions>
                <Condition Property="IsHighlighted" Value="True"/>
                <Condition Property="IsEnabled" Value="False"/>
            </MultiTrigger.Conditions>
            <Setter Property="Background" TargetName="templateRoot" Value="#0A000000"/>
            <Setter Property="BorderBrush" TargetName="templateRoot" Value="#21000000"/>
        </MultiTrigger>
    </ControlTemplate.Triggers>
</ControlTemplate>

<!-- Menu End -->

回答5:

I would create the menu with XAML

XAML of Page something like this:

<Window.Resources>
    <Style TargetType="TextBlock">
        <Setter Property="Margin" Value="10" />
        <Setter Property="FontSize" Value="15" />
        <Setter Property="Foreground" Value="White" />
    </Style>
</Window.Resources>
<Grid x:Name="Content">
    <Grid >
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>

        <StackPanel Orientation="Horizontal" Background="CornflowerBlue">
            <TextBlock Text="Menu1" MouseLeftButtonDown="OnMouseLeftButtonDown" />
            <TextBlock Text="Menu2" MouseLeftButtonDown="OnMouseLeftButtonDown" />
            <TextBlock Text="Menu3" MouseLeftButtonDown="OnMouseLeftButtonDown" />
        </StackPanel>

        <Border Grid.Row="1" Background="Bisque"></Border>
    </Grid>
</Grid>

And in Code:

    private void OnMouseLeftButtonDown(object sender, MouseEventArgs e) {
        var textBlock = sender as TextBlock;
        if (textBlock == null) return;
        var relativePoint = VisualTreeHelper.GetOffset(textBlock);//textBlock.TransformToAncestor(Content).Transform(new Point(0, 0));

        //Almost invisible Background - If the user clicks it the menu is hidden
        var back = new Border{Background = new SolidColorBrush(Color.FromArgb(1,255,255,255))};
        back.MouseLeftButtonDown += (o, args) => {
            Content.Children.Remove(back.Tag as UIElement);
            Content.Children.Remove(back);
        };
        Content.Children.Add(back);

        //Build menu
        var menu = new Border{Background = new SolidColorBrush(Colors.White), Width = 200, Height = 500, BorderBrush = new SolidColorBrush(Colors.Gray), BorderThickness = new Thickness(1), HorizontalAlignment = HorizontalAlignment.Left, VerticalAlignment = VerticalAlignment.Top};
        back.Tag = menu;
        menu.RenderTransform = new TranslateTransform(relativePoint.X, relativePoint.Y + textBlock.ActualHeight + 5);
        //Do some more styling
        //Fill Menu here according to the tag of the TextBlock (switch(textBlock.Tag){...} or use a predefined view
        Content.Children.Add(menu);

        //Hide the Menu on click - TODO Implement logic to hide menu if a MenuItem was clicked...
        menu.MouseLeftButtonDown += (o, args) => {
            Content.Children.Remove(back.Tag as UIElement);
            Content.Children.Remove(back);
        };
    }

OK, this is a very basic example and needs a lot of improvement but I think you can work on it...