在WPF

Question

我是WPF新手。我在controltemplate中自定义一个toogle按钮，它有一个命令。我想将命令点击事件映射到我的自定义控件。

<Style x:Key="ToggleButtonStyle" TargetType="{x:Type ToggleButton}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type ToggleButton}">
                    <Grid>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal"/>
                                <VisualState x:Name="MouseOver"/>
                                <VisualState x:Name="Pressed"/>
                                <VisualState x:Name="Disabled"/>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Grid>
                            <Viewbox Stretch="Fill">
                            <Grid Width="150" Height="100">
                                <Grid.Background>
                                    <SolidColorBrush Color="{Binding RelativeSource ={RelativeSource TemplatedParent},Path=PrimaryColor}"/>
                                </Grid.Background>
                                <TextBlock Text="+" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="64" FontWeight="Bold" Foreground="LightGray"/>

                                <Grid Margin="0" Width="150" Height="100">
                                    <Grid.Background>
                                        <LinearGradientBrush StartPoint="0.462063,0.00227975" EndPoint="0.462063,1.00111">
                                            <LinearGradientBrush.GradientStops>
                                                <GradientStop Color="#66007099" Offset="0"/>
                                                <GradientStop Color="#4D0079AC" Offset="0.131072"/>
                                                <GradientStop Color="#350082C0" Offset="0.367442"/>
                                                <GradientStop Color="#030094E8" Offset="0.990952"/>
                                            </LinearGradientBrush.GradientStops>
                                        </LinearGradientBrush>
                                    </Grid.Background>
                                    <Grid.Effect>
                                        <DropShadowEffect BlurRadius="38" ShadowDepth="11.3386" Opacity="0.6" Color="#FF000000" Direction="270"/>
                                    </Grid.Effect>
                                </Grid>

                                </Grid>
                            </Viewbox>
                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                            <Grid Margin="0">
                                <Button Style="{StaticResource CloseButton}" Command="{x:Static my:ContainerButton.CloseCommand}" Height="20" Width="20" HorizontalAlignment="Right" VerticalAlignment="Top" Visibility="{Binding RelativeSource ={RelativeSource TemplatedParent},Path=ShowToolbar}" />
                            </Grid>

                        </Grid>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

那是我的xaml模板，

    public class ContainerButton : ToggleButton{

    public ContainerButton() {
        closeCommand = new RoutedCommand("CloseCommand", typeof(ContainerButton));

        var binding = new CommandBinding() { Command = closeCommand };
        binding.Executed += OnCloseEvent;

        CommandBindings.Add(binding);
    }

    private void OnCloseEvent(object sender, ExecutedRoutedEventArgs e) {
        Content = null;
        ShowToolbar = System.Windows.Visibility.Hidden;
    }


    public static readonly DependencyProperty CloseCommandProperty =
        DependencyProperty.Register("CloseCommand", typeof(RoutedCommand), typeof(ContainerButton));

    private static RoutedCommand closeCommand;

    public static RoutedCommand CloseCommand {
        get {
            return closeCommand;
        }
    }}

我使用了像

这样的控件

<local:ContainerButton x:Name="xToggle" 
                       Style="{DynamicResource ToggleButtonStyle}"
                       PrimaryColor="Transparent" 
                       Margin="252,222,82,34" />

当我构建项目并运行应用程序时，它运行良好。当我在visual studio 2010中切换到xaml设计视图时出现异常， Visual studio抛出一个

  

System.Windows.Markup.StaticExtension.Member Exception。

我在设计模式下删除了Command="{x:Static my:ContainerButton.CloseCommand}"自定义控件显示。我不知道它有什么问题？