Winforms 右对齐选项卡控件上的垂直文本

尝试使tabcontrol的每个选项卡上的文本垂直显示。因为我从来没有尝试过控制什么的，我有点被卡住了。找到一些代码以使文本显示为向左旋转。我想它显示，好像它是右转（垂直）的标签。基本代码如下：

Protected Sub OnDrawItem(ByVal sender As Object, ByVal e As DrawItemEventArgs) Handles TabControl1.DrawItem
    'MyBase.OnDrawItem(e)'
    Dim tc As TabControl = DirectCast(sender, TabControl)
    Dim g As Graphics = e.Graphics
    Dim rectf As RectangleF
    Dim isVertical As Boolean = (tc.Alignment > TabAlignment.Bottom)
    Dim off As Integer = 1 : If (e.State And sel) = sel Then off = -1
    Dim textFormat As New StringFormat(StringFormatFlags.NoClip _
                               Or StringFormatFlags.NoWrap)
    With textFormat
        .HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.Show
        .Alignment = StringAlignment.Center
        .LineAlignment = StringAlignment.Center
    End With


    With e.Bounds
        If isVertical Then
            ' tabs are aligned left or right'
            If tc.Alignment = TabAlignment.Left Then
                Dim m As New System.Drawing.Drawing2D.Matrix
                m.Translate(0, .Height - tc.TabPages(0).Top)
                m.RotateAt(270, New PointF(.X, .Y))
                g.Transform = m
                rectf = New RectangleF(.Left - tc.TabPages(0).Top, .Top + off, _
                                       .Height, .Width)
            ElseIf tc.Alignment = TabAlignment.Right Then
                'Dim m As New System.Drawing.Drawing2D.Matrix'
                'm.Translate(0, .Height - tc.TabPages(0).Top)'
                'm.RotateAt(270, New PointF(.X, .Y))'
                'g.Transform = m'
                'rectf = New RectangleF(.Left - tc.TabPages(0).Top, .Top + off, _'
                '                       .Height, .Width)'
                ' Here is where the tab should go to rotate the text about 180 degrees'
            End If
        Else
            ' tabs are aligned top or bottom'
            rectf = New RectangleF(.X, .Y + off, .Width, .Height)
        End If
    End With


    Dim col As Color
    Select Case (e.State And notsf)
        Case DrawItemState.Disabled
            col = SystemColors.GrayText
        Case DrawItemState.HotLight
            col = SystemColors.HotTrack
        Case Else
            col = SystemColors.MenuText
    End Select


    g.DrawString(tc.TabPages(e.Index).Text, _
                 tc.Font, _
                 New SolidBrush(col), _
                 rectf, _
                 textFormat)

    If isVertical Then g.ResetTransform()

    If (e.State And selfoc) = selfoc Then
        ControlPaint.DrawFocusRectangle(g, _
                  [Rectangle].Inflate(e.Bounds, -1, -1))
    End If
    textFormat.Dispose()
End Sub 

---

我假设您使用的是XAML，这可以通过样式实现

添加以下样式：

    <!-- Simple Splitter Style -->
    <Style x:Key="SimpleSplitterStyle" TargetType="controls:GridSplitter">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="controls:GridSplitter">
                    <Grid x:Name="Root" IsHitTestVisible="{TemplateBinding IsEnabled}">
                        <Rectangle Fill="{TemplateBinding Background}" StrokeThickness="0"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <!-- Tab Item Header (Right) -->
    <Style x:Key="RightTabItemHeader" TargetType="ContentControl">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ContentControl">
                    <ContentPresenter Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" ContentTemplate="{TemplateBinding ContentTemplate}">
                        <layout:LayoutTransformer >
                            <layout:LayoutTransformer.LayoutTransform>
                                <RotateTransform Angle="90"/>
                            </layout:LayoutTransformer.LayoutTransform>
                            <ContentPresenter Margin="5,0,5,0" />
                        </layout:LayoutTransformer>
                    </ContentPresenter>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <!-- Tab Item Header (Left) -->
    <Style x:Key="LeftTabItemHeader" TargetType="ContentControl">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ContentControl">
                    <ContentPresenter Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" ContentTemplate="{TemplateBinding ContentTemplate}">
                        <layout:LayoutTransformer >
                            <layout:LayoutTransformer.LayoutTransform>
                                <RotateTransform Angle="-90"/>
                            </layout:LayoutTransformer.LayoutTransform>
                            <ContentPresenter Margin="5,0,5,0" />
                        </layout:LayoutTransformer>
                    </ContentPresenter>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <!-- Tab Item Style -->
    <Style x:Key="TabItemStyle" TargetType="controls:TabItem">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="controls:TabItem">
                    <Grid x:Name="Root">
                        <Grid x:Name="TemplateTopSelected" Visibility="Collapsed" Canvas.ZIndex="1">
                            <Border Margin="-2,-2,-2,0" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,1,0" CornerRadius="3,3,0,0">
                                <Border BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="1,1,0,0">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <Rectangle Fill="#FFFFFFFF" Margin="0,0,0,-2"/>
                                        <ContentControl x:Name="HeaderTopSelected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="FocusVisualTop" Margin="-2,-2,-2,0" IsHitTestVisible="false" Visibility="Collapsed" BorderBrush="#FF6DBDD1" BorderThickness="1,1,1,0" CornerRadius="3,3,0,0"/>
                            <Border x:Name="DisabledVisualTopSelected" Margin="-2,-2,-2,0" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="3,3,0,0"/>
                        </Grid>
                        <Grid x:Name="TemplateTopUnselected" Visibility="Collapsed">
                            <Border x:Name="BorderTop" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1" CornerRadius="3,3,0,0">
                                <Border x:Name="GradientTop" BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="1,1,0,0">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <ContentControl x:Name="HeaderTopUnselected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="DisabledVisualTopUnSelected" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="3,3,0,0"/>
                        </Grid>
                        <Grid x:Name="TemplateBottomSelected" Visibility="Collapsed" Canvas.ZIndex="1">
                            <Border Margin="-2,0,-2,-2" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,0,1,1" CornerRadius="0,0,3,3">
                                <Border BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="0,0,1,1">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <Rectangle Fill="#FFFFFFFF" Margin="0,-2,0,0"/>
                                        <ContentControl x:Name="HeaderBottomSelected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="FocusVisualBottom" Margin="-2,0,-2,-2" IsHitTestVisible="false" Visibility="Collapsed" BorderBrush="#FF6DBDD1" BorderThickness="1,0,1,1" CornerRadius="0,0,3,3"/>
                            <Border x:Name="DisabledVisualBottomSelected" Margin="-2,0,-2,-2" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="0,0,3,3"/>
                        </Grid>
                        <Grid x:Name="TemplateBottomUnselected" Visibility="Collapsed">
                            <Border x:Name="BorderBottom" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1" CornerRadius="0,0,3,3">
                                <Border x:Name="GradientBottom" BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="0,0,1,1">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <ContentControl x:Name="HeaderBottomUnselected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="DisabledVisualBottomUnSelected" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="0,0,3,3"/>
                        </Grid>
                        <Grid x:Name="TemplateLeftSelected" Visibility="Collapsed" Canvas.ZIndex="1">
                            <Border Margin="-2,-2,0,-2" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,0,1" CornerRadius="3,0,0,3">
                                <Border BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="1,0,0,1">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <Rectangle Fill="#FFFFFFFF" Margin="0,0,-2,0"/>
                                        <ContentControl x:Name="HeaderLeftSelected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}" Style="{StaticResource LeftTabItemHeader}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="FocusVisualLeft" Margin="-2,-2,0,-2" IsHitTestVisible="false" Visibility="Collapsed" BorderBrush="#FF6DBDD1" BorderThickness="1,1,0,1" CornerRadius="3,0,0,3"/>
                            <Border x:Name="DisabledVisualLeftSelected" Margin="-2,-2,0,-2" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="3,0,0,3"/>
                        </Grid>
                        <Grid x:Name="TemplateLeftUnselected" Visibility="Collapsed">
                            <Border x:Name="BorderLeft" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="3,0,0,3">
                                <Border x:Name="GradientLeft" BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="1,0,0,1">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <ContentControl x:Name="HeaderLeftUnselected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}" Style="{StaticResource LeftTabItemHeader}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="DisabledVisualLeftUnSelected" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="3,0,0,3"/>
                        </Grid>
                        <Grid x:Name="TemplateRightSelected" Visibility="Collapsed" Canvas.ZIndex="1">
                            <Border Margin="0,-2,-2,-2" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,1,1,1" CornerRadius="0,3,3,0">
                                <Border BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="0,1,1,0">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <Rectangle Fill="#FFFFFFFF" Margin="-2,0,0,0"/>
                                        <ContentControl x:Name="HeaderRightSelected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}" Style="{StaticResource RightTabItemHeader}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="FocusVisualRight" Margin="0,-2,-2,-2" IsHitTestVisible="false" Visibility="Collapsed" BorderBrush="#FF6DBDD1" BorderThickness="0,1,1,1" CornerRadius="0,3,3,0"/>
                            <Border x:Name="DisabledVisualRightSelected" Margin="0,-2,-2,-2" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="0,3,3,0"/>
                        </Grid>
                        <Grid x:Name="TemplateRightUnselected" Visibility="Collapsed">
                            <Border x:Name="BorderRight" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1" CornerRadius="0,3,3,0">
                                <Border x:Name="GradientRight" BorderBrush="#FFFFFFFF" BorderThickness="1" CornerRadius="0,1,1,0">
                                    <Border.Background>
                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Border.Background>
                                    <Grid>
                                        <ContentControl x:Name="HeaderRightUnselected" FontSize="{TemplateBinding FontSize}" Foreground="{TemplateBinding Foreground}" IsTabStop="False" Cursor="{TemplateBinding Cursor}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalAlignment}" Style="{StaticResource RightTabItemHeader}"/>
                                    </Grid>
                                </Border>
                            </Border>
                            <Border x:Name="DisabledVisualRightUnSelected" IsHitTestVisible="false" Opacity="0" Background="#8CFFFFFF" CornerRadius="0,3,3,0"/>
                        </Grid>
                        <Border x:Name="FocusVisualElement" Margin="-1" IsHitTestVisible="false" Visibility="Collapsed" BorderBrush="#FF6DBDD1" BorderThickness="1" CornerRadius="3,3,0,0"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

            <controls:TabControl TabStripPlacement="Right" Margin="4">
            <controls:TabItem Header="First" Style="{StaticResource TabItemStyle}">
                <controls:TreeView>
                    <controls:TreeViewItem Header="Parent 1" />
                    <controls:TreeViewItem Header="Parent 2">
                        <controls:TreeViewItem Header="Child 1">
                            <controls:TreeViewItem Header="Grandchild 1" />
                        </controls:TreeViewItem>
                    </controls:TreeViewItem>
                    <controls:TreeViewItem Header="Parent 3">
                        <controls:TreeViewItem Header="Child 1">
                            <controls:TreeViewItem Header="Grandchild 1" />
                            <controls:TreeViewItem Header="Grandchild 2" />
                        </controls:TreeViewItem>
                    </controls:TreeViewItem>
                </controls:TreeView>
            </controls:TabItem>
            <controls:TabItem Header="Second" Style="{StaticResource TabItemStyle}">
                <controls:TreeView>
                    <controls:TreeViewItem Header="Parent 1" />
                    <controls:TreeViewItem Header="Parent 2">
                        <controls:TreeViewItem Header="Child 1">
                            <controls:TreeViewItem Header="Grandchild 1" />
                        </controls:TreeViewItem>
                    </controls:TreeViewItem>
                    <controls:TreeViewItem Header="Parent 3">
                        <controls:TreeViewItem Header="Child 1">
                            <controls:TreeViewItem Header="Grandchild 1" />
                            <controls:TreeViewItem Header="Grandchild 2" />
                        </controls:TreeViewItem>
                    </controls:TreeViewItem>
                    <controls:TreeViewItem Header="Parent 4">
                        <controls:TreeViewItem Header="Child 1">
                            <controls:TreeViewItem Header="Grandchild 1" />
                            <controls:TreeViewItem Header="Grandchild 2" />
                            <controls:TreeViewItem Header="Grandchild 3" />
                            <controls:TreeViewItem Header="Grandchild 4" />
                            <controls:TreeViewItem Header="Grandchild 5" />
                            <controls:TreeViewItem Header="Grandchild 6" />
                            <controls:TreeViewItem Header="Grandchild 7" />
                            <controls:TreeViewItem Header="Grandchild 8" />
                        </controls:TreeViewItem>
                    </controls:TreeViewItem>
                </controls:TreeView>
            </controls:TabItem>
        </controls:TabControl>

m.RotateAt(270, New PointF(.X, .Y))

m.Translate(0, .Height - tc.TabPages(0).Top)