.net - 如何为 Popup 控件编写样式模板？

Question

我在应用程序(.NET Framework 4、WPF)中有很多弹出窗口，我必须为所有这些弹出窗口设置一种样式。
示例弹出窗口如下所示:

<Popup PopupAnimation="Fade" MinWidth="600" MinHeight="200" Placement="Center" VerticalAlignment="Center" HorizontalAlignment="Center" IsEnabled="True" IsOpen="False">
    <Grid Width="Auto" Height="Auto" Background="Gray">
        <Grid.RowDefinitions>
            <RowDefinition Height="30"/>                   
            <RowDefinition Height="Auto"/>           
        </Grid.RowDefinitions>
        <Border BorderThickness="2" CornerRadius="8" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.RowSpan="2">
            <Border.BorderBrush>
                <SolidColorBrush Color="Gray"/>
            </Border.BorderBrush>
            <Border.Background>
                <SolidColorBrush Color="White"/>
            </Border.Background>
        </Border>

        <StackPanel Grid.Row="0">
            <Label Foreground="Blue" Content="Popup_Title"/>
        </StackPanel>

        <GroupBox Grid.Row="1" Header="Popup example content">
            <StackPanel>                      
                   ...                           
            </StackPanel>
        </GroupBox>      
    </Grid>
</Popup>

如何将边框和背景等样式添加到样式模板中？
我无法使用 TargetType Popup 编写 Style 并修改它的 Property="Template"因为弹出控件没有 Property="Template" .那么我该如何为这些弹出窗口编写样式呢？

编辑:
确切的工作作风:

    <Style x:Key="PopupContentStyle" TargetType="ContentControl">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="ContentControl">
                <Grid Width="Auto" Height="Auto" Background="Gray">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="30"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>
                    <Border BorderThickness="2" CornerRadius="8" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.RowSpan="2">
                        <Border.BorderBrush>
                            <SolidColorBrush Color="Gray"/>
                        </Border.BorderBrush>
                        <Border.Background>
                            <SolidColorBrush Color="White"/>
                        </Border.Background>
                    </Border>

                    <StackPanel Grid.Row="0">
                        <Label Foreground="Blue" Content="Popup_Title"/>
                    </StackPanel>

                    <GroupBox Grid.Row="1" Header="Popup example content">
                        <StackPanel>
                            <ContentPresenter />
                        </StackPanel>
                    </GroupBox>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

Answer 1

我建议将您的弹出窗口内容包装在类似 ContentControl 的内容中。或 HeaderedContentControl并设置它的风格

<Popup>
    <ContentControl Style="{StaticResource PopupContentStyle}">
        ...
    </ContentControl>
</Popup>

示例样式...

<Style x:Key="PopupContentStyle" TargetType="{x:Type ContentControl}">
    <Setter Property="ContentTemplate">
        <Setter.Value>
            <DataTemplate>

                <Grid Width="Auto" Height="Auto" Background="Gray">
                   <Grid.RowDefinitions>
                        <RowDefinition Height="30"/>                   
                        <RowDefinition Height="Auto"/>           
                    </Grid.RowDefinitions>
                    <Border BorderThickness="2" CornerRadius="8" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.RowSpan="2">
                        <Border.BorderBrush>
                            <SolidColorBrush Color="Gray"/>
                        </Border.BorderBrush>
                        <Border.Background>
                            <SolidColorBrush Color="White"/>
                        </Border.Background>
                    </Border>

                    <StackPanel Grid.Row="0">
                        <Label Foreground="Blue" Content="Popup_Title"/>
                    </StackPanel>

                    <GroupBox Grid.Row="1" Header="Popup example content">
                        <StackPanel>                      
                               <ContentPresenter />                         
                        </StackPanel>
                   </GroupBox>      
                </Grid>
            </DataTemplate>
        </Setter.Value>
    </Setter>
</Style>