隠され、矢印のコンポーネントのラインナップ制御のエキスパンダ

Question

使用時のコンポーネントのラインナップエキスパンダでコントロールが表示され、デフォルトの"上へ""下"矢鍵となります。、本当にありがとう隠その編集ダイアログボックス?

更新:

から受けることになってしまいを外し矢印により作成ControlTemplateが、拡大する能力がなくなったもの:

<ContentPresenter Content="{TemplateBinding Expander.Header}"></ContentPresenter>
            <ContentPresenter Content="{TemplateBinding Expander.Content}"></ContentPresenter>



<Expander Template="{StaticResource ExpanderControlTemplate}" IsExpanded="False" Cursor="Hand">             

                <Expander.Header>
                <Border Style="{StaticResource FeedTitleStyle}">
                <DockPanel Width="Auto">
                    <TextBlock DockPanel.Dock="Left" FontSize="16" Text="IronRuby in Action!" />                   
                </DockPanel>           

            </Border>                 
                </Expander.Header>
                <Expander.Content>                    
                    <TextBlock Text="This is the decriprion!" />
                </Expander.Content>

            </Expander>

Answer 1

残念ながらのContentPresenterのExpanderTemplateのヘッダのグリッドとして、矢印方かの設定HeaderTemplate思います。

を使用 モル になることがわかります。ToggleButton楕円を表すので、道を代表する矢印のContentPresenterを表示するかを設定するヘッダ。

現在私たちが知っている実際のレイアウトのエキスパンダがありながら、その方法を生み出した約を変更します。ブランド構築の新しいControlTemplateのエキスパンダは、部品を除去したい削除/隠します。

更新:ためのブレンド生成後、テンプレートのエキスパンダすいだけでいよび削除、楕円やパスから各ToggleButtonます。

<Style x:Key="ExpanderHeaderFocusVisual">
    <Setter Property="Control.Template">
    <Setter.Value>
        <ControlTemplate>
            <Border>
                <Rectangle SnapsToDevicePixels="true"
                           Margin="0"
                           Stroke="Black"
                           StrokeDashArray="1 2"
                           StrokeThickness="1" />
            </Border>
        </ControlTemplate>
    </Setter.Value>
    </Setter>
</Style>

<Style x:Key="ExpanderDownHeaderStyle"
       TargetType="{x:Type ToggleButton}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ToggleButton}">
                <Border Padding="{TemplateBinding Padding}">
                    <Grid SnapsToDevicePixels="False"
                          Background="Transparent">
                        <ContentPresenter SnapsToDevicePixels="True"
                                          HorizontalAlignment="Left"
                                          VerticalAlignment="Center"
                                          RecognizesAccessKey="True" />
                    </Grid>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
<Style x:Key="ExpanderRightHeaderStyle"
       TargetType="{x:Type ToggleButton}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ToggleButton}">
                <Border Padding="{TemplateBinding Padding}">
                    <Grid SnapsToDevicePixels="False"
                          Background="Transparent">
                        <ContentPresenter SnapsToDevicePixels="True"
                                          HorizontalAlignment="Center"
                                          VerticalAlignment="Top"
                                          RecognizesAccessKey="True" />
                    </Grid>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
<Style x:Key="ExpanderUpHeaderStyle"
       TargetType="{x:Type ToggleButton}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ToggleButton}">
                <Border Padding="{TemplateBinding Padding}">
                    <Grid SnapsToDevicePixels="False"
                          Background="Transparent">
                        <ContentPresenter SnapsToDevicePixels="True"
                                          HorizontalAlignment="Left"
                                          VerticalAlignment="Center"
                                          RecognizesAccessKey="True" />
                    </Grid>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
<Style x:Key="ExpanderLeftHeaderStyle"
       TargetType="{x:Type ToggleButton}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ToggleButton}">
                <Border Padding="{TemplateBinding Padding}">
                    <Grid SnapsToDevicePixels="False"
                          Background="Transparent">
                        <ContentPresenter SnapsToDevicePixels="True"
                                          HorizontalAlignment="Center"
                                          VerticalAlignment="Top"
                                          RecognizesAccessKey="True" />
                    </Grid>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
<Style x:Key="ArrowlessExpanderTemplate"
       TargetType="{x:Type Expander}">
    <Setter Property="Foreground"
            Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" />
    <Setter Property="Background"
            Value="Transparent" />
    <Setter Property="HorizontalContentAlignment"
            Value="Stretch" />
    <Setter Property="VerticalContentAlignment"
            Value="Stretch" />
    <Setter Property="BorderBrush"
            Value="Transparent" />
    <Setter Property="BorderThickness"
            Value="1" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Expander}">
                <Border SnapsToDevicePixels="true"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        CornerRadius="3">
                    <DockPanel>
                        <ToggleButton FontFamily="{TemplateBinding FontFamily}"
                                      FontSize="{TemplateBinding FontSize}"
                                      FontStretch="{TemplateBinding FontStretch}"
                                      FontStyle="{TemplateBinding FontStyle}"
                                      FontWeight="{TemplateBinding FontWeight}"
                                      Foreground="{TemplateBinding Foreground}"
                                      HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                      Padding="{TemplateBinding Padding}"
                                      VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                                      FocusVisualStyle="{StaticResource ExpanderHeaderFocusVisual}"
                                      Margin="1"
                                      MinHeight="0"
                                      MinWidth="0"
                                      x:Name="HeaderSite"
                                      Style="{StaticResource ExpanderDownHeaderStyle}"
                                      Content="{TemplateBinding Header}"
                                      ContentTemplate="{TemplateBinding HeaderTemplate}"
                                      ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
                                      DockPanel.Dock="Top"
                                      IsChecked="{Binding Path=IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" />
                        <ContentPresenter Focusable="false"
                                          Visibility="Collapsed"
                                          HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                          Margin="{TemplateBinding Padding}"
                                          x:Name="ExpandSite"
                                          VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                          DockPanel.Dock="Bottom" />
                    </DockPanel>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsExpanded"
                             Value="true">
                        <Setter Property="Visibility"
                                TargetName="ExpandSite"
                                Value="Visible" />
                    </Trigger>
                    <Trigger Property="ExpandDirection"
                             Value="Right">
                        <Setter Property="DockPanel.Dock"
                                TargetName="ExpandSite"
                                Value="Right" />
                        <Setter Property="DockPanel.Dock"
                                TargetName="HeaderSite"
                                Value="Left" />
                        <Setter Property="Style"
                                TargetName="HeaderSite"
                                Value="{StaticResource ExpanderRightHeaderStyle}" />
                    </Trigger>
                    <Trigger Property="ExpandDirection"
                             Value="Up">
                        <Setter Property="DockPanel.Dock"
                                TargetName="ExpandSite"
                                Value="Top" />
                        <Setter Property="DockPanel.Dock"
                                TargetName="HeaderSite"
                                Value="Bottom" />
                        <Setter Property="Style"
                                TargetName="HeaderSite"
                                Value="{StaticResource ExpanderUpHeaderStyle}" />
                    </Trigger>
                    <Trigger Property="ExpandDirection"
                             Value="Left">
                        <Setter Property="DockPanel.Dock"
                                TargetName="ExpandSite"
                                Value="Left" />
                        <Setter Property="DockPanel.Dock"
                                TargetName="HeaderSite"
                                Value="Right" />
                        <Setter Property="Style"
                                TargetName="HeaderSite"
                                Value="{StaticResource ExpanderLeftHeaderStyle}" />
                    </Trigger>
                    <Trigger Property="IsEnabled"
                             Value="false">
                        <Setter Property="Foreground"
                                Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

また、例えAttachedPropertyの矢印-サークル部品には崩壊します。

こちらは当社のAttachedProperty:

public class AttachedProperties
{
    #region HideExpanderArrow AttachedProperty

    [AttachedPropertyBrowsableForType(typeof(Expander))]
    public static bool GetHideExpanderArrow(DependencyObject obj)
    {
        return (bool)obj.GetValue(HideExpanderArrowProperty);
    }

    [AttachedPropertyBrowsableForType(typeof(Expander))]
    public static void SetHideExpanderArrow(DependencyObject obj, bool value)
    {
        obj.SetValue(HideExpanderArrowProperty, value);
    }

    // Using a DependencyProperty as the backing store for HideExpanderArrow.  This enables animation, styling, binding, etc...
    public static readonly DependencyProperty HideExpanderArrowProperty =
        DependencyProperty.RegisterAttached("HideExpanderArrow", typeof(bool), typeof(AttachedProperties), new UIPropertyMetadata(false, OnHideExpanderArrowChanged));

    private static void OnHideExpanderArrowChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
    {
        Expander expander = (Expander)o;

        if (expander.IsLoaded)
        {
            UpdateExpanderArrow(expander, (bool)e.NewValue);
        }
        else
        {
            expander.Loaded += new RoutedEventHandler((x, y) => UpdateExpanderArrow(expander, (bool)e.NewValue));
        }
    }

    private static void UpdateExpanderArrow(Expander expander, bool visible)
    {
        Grid headerGrid =
            VisualTreeHelper.GetChild(
                VisualTreeHelper.GetChild(
                        VisualTreeHelper.GetChild(
                            VisualTreeHelper.GetChild(
                                VisualTreeHelper.GetChild(
                                    expander,
                                    0),
                                0),
                            0),
                        0),
                    0) as Grid;

        headerGrid.Children[0].Visibility = visible ? Visibility.Collapsed : Visibility.Visible; // Hide or show the Ellipse
        headerGrid.Children[1].Visibility = visible ? Visibility.Collapsed : Visibility.Visible; // Hide or show the Arrow
        headerGrid.Children[2].SetValue(Grid.ColumnProperty, visible ? 0 : 1); // If the Arrow is not visible, then shift the Header Content to the first column.
        headerGrid.Children[2].SetValue(Grid.ColumnSpanProperty, visible ? 2 : 1); // If the Arrow is not visible, then set the Header Content to span both rows.
        headerGrid.Children[2].SetValue(ContentPresenter.MarginProperty, visible ? new Thickness(0) : new Thickness(4,0,0,0)); // If the Arrow is not visible, then remove the margin from the Content.
    } 

    #endregion
}

私は旅行の直接のグリッドが含まれる'の矢"、ヘッダの内容ではなく、探しの名前で、こんどはだれも再孔のエキスパンダーへの成長を目指すものです。まあ、を含むグリッド、または矢印ックする倒壊しているのを確認してくださいヘッダはコンテンツを移動し、左方向に移動します。

利用の付属物件まで設定では、要素ー:

<StackPanel>
    <Expander x:Name="uiExpander" 
              local:AttachedProperties.HideExpanderArrow="True">
        <Expander.Header>
            <Border>
                <DockPanel Width="Auto">
                    <TextBlock DockPanel.Dock="Left"
                               FontSize="16"
                               Text="IronRuby in Action!" />
                </DockPanel>
            </Border>
        </Expander.Header>
        <Expander.Content>
            <TextBlock Text="This is the decriprion!" />
        </Expander.Content>
    </Expander>

    <Button Content="Click to Show/Hide Expander Arrow"
            Click="Button_Click" />

</StackPanel>

およびコード:

void Button_Click(object sender, RoutedEventArgs e)
{
    uiExpander.SetValue(
        AttachedProperties.HideExpanderArrowProperty, 
        !(bool)uiExpander.GetValue(AttachedProperties.HideExpanderArrowProperty));
}