我的WPF Windows有自定义样式。其中一部分是常规最小化，最大化和关闭按钮旁边的附加HelpButton。将此样式分配给我的Windows按预期工作，但我的窗口如何通知单击此按钮？按钮是在样式中定义的，所以我的窗口并不真正了解它。这是样式的代码：
<ResourceDictionary x:Class="Company.Common.Themes.CompanyWindowStyle"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/Company.Common.Themes;component/CompanyWindowBaseStyle.xaml" />
</ResourceDictionary.MergedDictionaries>
<Style x:Key="CompanyWindowStyle"
BasedOn="{StaticResource CompanyWindowBaseStyle}"
TargetType="{x:Type Window}">
<Setter Property="ResizeMode"
Value="CanResize" />
<EventSetter Event="Loaded"
Handler="WindowLoaded" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Window}">
<Border x:Name="PART_Container"
Padding="7,7,7,5">
<Grid TextOptions.TextFormattingMode="Display"
TextOptions.TextRenderingMode="ClearType">
<Border x:Name="PART_Border"
Width="Auto"
Height="Auto"
Background="{StaticResource BackgroundBrush}"
BorderBrush="{StaticResource BorderBrush}"
BorderThickness="1">
<DockPanel HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Background="Transparent">
<Border x:Name="TitleBar"
Background="{StaticResource BackgroundBrush}"
BorderThickness="0"
DockPanel.Dock="Top"
MouseDown="TitleBarMouseDown">
<Grid Height="32"
Background="Transparent">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="36" />
<ColumnDefinition />
<ColumnDefinition Width="34" />
<ColumnDefinition Width="34" />
<ColumnDefinition Width="34" />
<ColumnDefinition Width="34" />
</Grid.ColumnDefinitions>
<ContentControl Grid.Column="0"
MouseDoubleClick="IconMouseDoubleClicked">
<Image x:Name="Icon"
Width="32"
Height="32"
Margin="4,-7,0,7"
HorizontalAlignment="Right"
WindowChrome.IsHitTestVisibleInChrome="True"
Source="{Binding Path=Icon,
Mode=OneWay,
RelativeSource={RelativeSource TemplatedParent}}" />
</ContentControl>
<TextBlock x:Name="Caption"
Grid.Column="1"
Margin="4,0,0,0"
HorizontalAlignment="Center"
VerticalAlignment="Center"
FontFamily="Segoe UI"
FontSize="12"
Opacity="0.66"
Text="{Binding Path=Title,
Mode=OneWay,
RelativeSource={RelativeSource TemplatedParent}}" />
<Button x:Name="HelpButton"
Grid.Column="2"
Width="34"
Height="26"
VerticalAlignment="Top"
Click="HelpButtonClick"
Style="{StaticResource TitleBarButtonStyle}"
WindowChrome.IsHitTestVisibleInChrome="True">
<Grid MaxWidth="9"
MaxHeight="9">
<TextBlock Text="?" FontSize="14"
Foreground="{Binding RelativeSource={RelativeSource AncestorType=Button},
Path=Foreground}" />
</Grid>
</Button>
<Button x:Name="MinButton"
Grid.Column="3"
Width="34"
Height="26"
VerticalAlignment="Top"
Click="MinButtonClick"
Style="{StaticResource TitleBarButtonStyle}"
WindowChrome.IsHitTestVisibleInChrome="True">
<Grid MaxWidth="9"
MaxHeight="9">
<Path Data="M0,8 H8 M0,7 H8 M0,6 H8"
RenderOptions.EdgeMode="Aliased"
Stretch="None"
Stroke="{Binding RelativeSource={RelativeSource AncestorType=Button},
Path=Foreground}"
StrokeThickness="1" />
</Grid>
</Button>
<Button x:Name="MaxButton"
Grid.Column="4"
Width="34"
Height="26"
VerticalAlignment="Top"
Click="MaxButtonClick"
Style="{StaticResource TitleBarButtonStyle}"
WindowChrome.IsHitTestVisibleInChrome="True">
<Grid MaxWidth="9"
MaxHeight="9">
<Path x:Name="PART_MaxButton_Path"
Data="M0,0 H8 V8 H0 V0 M0,1 H8 M0,2 H8"
RenderOptions.EdgeMode="Aliased"
Stretch="None"
Stroke="{Binding RelativeSource={RelativeSource AncestorType=Button},
Path=Foreground}"
StrokeThickness="1" />
</Grid>
</Button>
<Button x:Name="CloseButton"
Grid.Column="5"
Width="34"
Height="26"
VerticalAlignment="Top"
Click="CloseButtonClick"
Style="{StaticResource TitleBarButtonStyle}"
WindowChrome.IsHitTestVisibleInChrome="True">
<Grid MaxWidth="9"
MaxHeight="9">
<Path Data="M0,0 L8,8 M0,8 L8,0"
Stretch="None"
Stroke="{Binding RelativeSource={RelativeSource AncestorType=Button},
Path=Foreground}"
StrokeThickness="1.5" />
</Grid>
</Button>
</Grid>
</Border>
<ContentPresenter />
</DockPanel>
</Border>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="WindowState"
Value="Maximized">
<Setter TargetName="PART_MaxButton_Path"
Property="Data"
Value="M0,3 H5 V8 H0 V3 M0,4 H5 M3,0 H8 V5 H7 M3,1 H8" />
</Trigger>
<Trigger Property="WindowState"
Value="Normal">
<Setter TargetName="PART_Border"
Property="Effect">
<Setter.Value>
<DropShadowEffect BlurRadius="7"
Direction="315"
Opacity="0.5"
ShadowDepth="2"
Color="black" />
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsActive"
Value="False">
<Setter TargetName="PART_Border"
Property="BorderBrush"
Value="{StaticResource BorderBrushInactive}" />
</Trigger>
<Trigger Property="IsActive"
Value="True">
<Setter TargetName="PART_Border"
Property="BorderBrush"
Value="{StaticResource BorderBrush}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
我不知道怎么做。有人可以指出我正确的方向吗？
更新： 这是我使用Style：
的MainWindow XAML的标题<Window x:Class="Company.MainGUI.GUI.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:common="clr-namespace:Company.Common;assembly=Company.Common"
xmlns:controls="clr-namespace:Company.Common.Controls;assembly=Company.Common.Controls"
xmlns:l="clr-namespace:Company.Common.Languages;assembly=Company.Common.Languages"
xmlns:local="clr-namespace:Company.MainGUI.GUI"
Title="{x:Static l:Common_Text.Application_Name}"
UseLayoutRounding="True"
MinWidth="900"
MinHeight="600"
Icon="pack://application:,,,/Company.Common.Images;component/Resources/ApplicationLogo_MainGUI.ico"
WindowStartupLocation="CenterScreen">
<Window.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/Company.Common.Themes;component/CompanyWindowStyle.xaml" />
<ResourceDictionary Source="pack://application:,,,/Company.Common.Themes;component/MainGUISkin.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Window.Resources>
<Window.Style>
<Style TargetType="{x:Type local:MainWindow}"
BasedOn="{StaticResource CompanyWindowStyle}" />
</Window.Style>