Skip to content

feat: add Tag option to control Expander header text orientation (Left/Right) #253

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
ghost1372 merged 2 commits into from
Nov 13, 2026
Merged

feat: add Tag option to control Expander header text orientation (Left/Right) #253

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
986d49c
feat: add Tag option to control Expander header text orientation
Nov 13, 2026
2d6c4c3
refactor: use attached property ExpanderElement.HeaderTextOrientation…
Nov 13, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
37 changes: 37 additions & 0 deletions src/Shared/HandyControl_Shared/Controls/Attach/ExpanderElement.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,37 @@
using System.Windows;

namespace HandyControl.Controls;

/// <summary>
/// Header text orientation of an <see cref="Expander"/> when <see cref="Expander.ExpandDirection"/> is Left or Right.
/// </summary>
public enum ExpanderHeaderTextOrientation
{
/// <summary>
/// Same as the current behavior: the whole header is rotated -90 degrees (glyphs lying on their side).
/// </summary>
Default = 0,

/// <summary>
/// Upright vertical: characters stand upright and stack top-to-bottom.
/// </summary>
Vertical = 1,

/// <summary>
/// Upright horizontal: a single horizontal line.
/// </summary>
Horizontal = 2
}

/// <summary>
/// Attached properties for <see cref="Expander"/>.
/// </summary>
public class ExpanderElement
{
public static readonly DependencyProperty HeaderTextOrientationProperty = DependencyProperty.RegisterAttached(
"HeaderTextOrientation", typeof(ExpanderHeaderTextOrientation), typeof(ExpanderElement), new FrameworkPropertyMetadata(ExpanderHeaderTextOrientation.Default));

public static void SetHeaderTextOrientation(DependencyObject element, ExpanderHeaderTextOrientation value) => element.SetValue(HeaderTextOrientationProperty, value);

public static ExpanderHeaderTextOrientation GetHeaderTextOrientation(DependencyObject element) => (ExpanderHeaderTextOrientation) element.GetValue(HeaderTextOrientationProperty);
}
1 change: 1 addition & 0 deletions src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
<Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\DataGridAttach.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\DropDownElement.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\EdgeElement.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\ExpanderElement.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\ComboBoxAttach.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\GridAttach.cs" />
<Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\GridViewAttach.cs" />
Expand Down
46 changes: 44 additions & 2 deletions src/Shared/HandyControl_Shared/Themes/Styles/Base/ExpanderBaseStyle.xaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@
<RotateTransform Angle="-90" />
</TransformGroup>
</Grid.LayoutTransform>
<ContentPresenter ContentSource="Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
<ContentPresenter Name="HeaderText" ContentSource="Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
<Path Name="PathArrow" IsHitTestVisible="False" Grid.Column="1" Stretch="Uniform" Fill="{TemplateBinding Foreground}" Data="{StaticResource UpGeometry}" Width="12" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalAlignment="Center" />
</Grid>
</ToggleButton>
Expand All @@ -34,6 +34,27 @@
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Opacity" Value=".4" />
</Trigger>
<Trigger Property="hc:ExpanderElement.HeaderTextOrientation" Value="Vertical">
<Setter TargetName="HeaderText" Property="LayoutTransform">
<Setter.Value>
<RotateTransform Angle="90" />
</Setter.Value>
</Setter>
<Setter TargetName="HeaderText" Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Text="{Binding}" TextWrapping="Wrap" TextAlignment="Center" Width="{Binding FontSize, RelativeSource={RelativeSource AncestorType=Expander}}" />
</DataTemplate>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="hc:ExpanderElement.HeaderTextOrientation" Value="Horizontal">
<Setter TargetName="HeaderText" Property="LayoutTransform">
<Setter.Value>
<RotateTransform Angle="90" />
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>

Expand Down Expand Up @@ -84,7 +105,7 @@
<RotateTransform Angle="-90" />
</TransformGroup>
</Grid.LayoutTransform>
<ContentPresenter ContentSource="Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
<ContentPresenter Name="HeaderText" ContentSource="Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
<Path Name="PathArrow" IsHitTestVisible="False" Grid.Column="1" Stretch="Uniform" Fill="{TemplateBinding Foreground}" Data="{StaticResource DownGeometry}" Width="12" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalAlignment="Center" />
</Grid>
</ToggleButton>
Expand All @@ -99,6 +120,27 @@
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Opacity" Value=".4" />
</Trigger>
<Trigger Property="hc:ExpanderElement.HeaderTextOrientation" Value="Vertical">
<Setter TargetName="HeaderText" Property="LayoutTransform">
<Setter.Value>
<RotateTransform Angle="90" />
</Setter.Value>
</Setter>
<Setter TargetName="HeaderText" Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Text="{Binding}" TextWrapping="Wrap" TextAlignment="Center" Width="{Binding FontSize, RelativeSource={RelativeSource AncestorType=Expander}}" />
</DataTemplate>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="hc:ExpanderElement.HeaderTextOrientation" Value="Horizontal">
<Setter TargetName="HeaderText" Property="LayoutTransform">
<Setter.Value>
<RotateTransform Angle="90" />
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>

Expand Down