WPF DataGrid中的自定义ScrollBar

问题描述

我想在我的WPF应用程序中为DataGrid制作一个自定义ScrollBar。



以下是理想的观点：



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我现在拥有的：



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当前样式的XAML代码：

Hi,

I want to make a custom ScrollBar for DataGrid in my WPF application.

Here is the desired view:

http://postimg.org/image/dy6j6c3y9/[^]

What I have now:

http://postimg.org/image/jtzhxkhbp/[^]

The current XAML code for style:

<Style x:Key="ScrollThumbs" TargetType="{x:Type Thumb}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Thumb}">
                        <Grid x:Name="Grid">
                            <Rectangle HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="Auto" Height="Auto" Fill="Transparent" />
                            <Border x:Name="Rectangle1" CornerRadius="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="Auto" Height="Auto"  removed="{StaticResource GreenBackColor}" />
                        </Grid>
                        <ControlTemplate.Triggers>
                            <Trigger Property="Tag" Value="Horizontal">
                                <Setter TargetName="Rectangle1" Property="Width" Value="Auto" />
                                <Setter TargetName="Rectangle1" Property="Height" Value="7" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <Style x:Key="{x:Type ScrollBar}" TargetType="{x:Type ScrollBar}">
            <Setter Property="Stylus.IsFlicksEnabled" Value="false" />
            <Setter Property="Foreground" Value="#8C8C8C" />
            <Setter Property="Background" Value="{StaticResource GrayBackColor}" />
            <Setter Property="Width" Value="8" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollBar}">
                        <Grid x:Name="GridRoot" Width="8" removed="{TemplateBinding Background}">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="0.00001*" />
                            </Grid.RowDefinitions>

                            <Track x:Name="PART_Track" Grid.Row="0" IsDirectionReversed="true" Focusable="false">
                                <Track.Thumb>
                                    <Thumb x:Name="Thumb" removed="{TemplateBinding Foreground}" Style="{DynamicResource ScrollThumbs}" />
                                </Track.Thumb>
                                <Track.IncreaseRepeatButton>
                                    <RepeatButton x:Name="PageUp" Command="ScrollBar.PageDownCommand" Opacity="0" Focusable="false" />
                                </Track.IncreaseRepeatButton>
                                <Track.DecreaseRepeatButton>
                                    <RepeatButton x:Name="PageDown" Command="ScrollBar.PageUpCommand" Opacity="0" Focusable="false" />
                                </Track.DecreaseRepeatButton>
                            </Track>
                        </Grid>

                        <ControlTemplate.Triggers>
                            <Trigger SourceName="Thumb" Property="IsMouseOver" Value="true">
                                <Setter Value="{DynamicResource ButtonSelectBrush}" TargetName="Thumb" Property="Background" />
                            </Trigger>
                            <Trigger SourceName="Thumb" Property="IsDragging" Value="true">
                                <Setter Value="{DynamicResource DarkBrush}" TargetName="Thumb" Property="Background" />
                            </Trigger>

                            <Trigger Property="IsEnabled" Value="false">
                                <Setter TargetName="Thumb" Property="Visibility" Value="Collapsed" />
                            </Trigger>
                            <Trigger Property="Orientation" Value="Horizontal">
                                <Setter TargetName="GridRoot" Property="LayoutTransform">
                                    <Setter.Value>
                                        <RotateTransform Angle="-90" />
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="PART_Track" Property="LayoutTransform">
                                    <Setter.Value>
                                        <RotateTransform Angle="-90" />
                                    </Setter.Value>
                                </Setter>
                                <Setter Property="Width" Value="Auto" />
                                <Setter Property="Height" Value="8" />
                                <Setter TargetName="Thumb" Property="Tag" Value="Horizontal" />
                                <Setter TargetName="PageDown" Property="Command" Value="ScrollBar.PageLeftCommand" />
                                <Setter TargetName="PageUp" Property="Command" Value="ScrollBar.PageRightCommand" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <Style x:Key="ScrollBarPageButton" TargetType="{x:Type RepeatButton}">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="OverridesDefaultStyle" Value="true"/>
            <Setter Property="IsTabStop" Value="false"/>
            <Setter Property="Focusable" Value="false"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type RepeatButton}">
                        <Polygon Points="0,0 0,6, 0,10" Stroke="Black" Fill="Black" />
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

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