我的目标是制作一个像这样的滑块:
问题在于,当我将滑块移动到最大值时,三角形的顶点不会达到最高点,它停留在这个位置:
我认为问题的原因是 Thumb
的位置被限制在其大小范围内,因此它不能超出滑块的限制……但在我的情况下,这正是我想要实现的!我尝试改变 Thumb
的高度,但这可能对 Top
有所帮助,但在滑块的 Bottom
中就会出现问题。
我的代码缺少什么?
到目前为止,我的代码是:
滑块:
<Slider Grid.Row="1"
Grid.Column="1"
Maximum="1000"
Orientation="Vertical"
HorizontalAlignment="Center"
Margin="20,0,20,20"
Height="150"
Style="{DynamicResource LampadaSliderStyle}" />
重复按钮样式:
<Style x:Key="SliderRepeatButtonStyle" TargetType="{x:Type RepeatButton}">
<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}">
<Rectangle Fill="Transparent"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
拇指样式:
<Style x:Key="LampadaThumbStyle" TargetType="{x:Type Thumb}">
<Setter Property="Focusable" Value="false"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="Height" Value="20"/>
<Setter Property="Width" Value="20"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Canvas SnapsToDevicePixels="true">
<Path Data="M8.1965079,-17.994989 L28.196667,-28.213333 28.196333,-8.213772 z"
Fill="Black"
Height="20"
Canvas.Left="23.197"
Stretch="Fill"
Canvas.Top="9.768"
Width="20"/>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
滑块样式:
<Style x:Key="LampadaSliderStyle" TargetType="{x:Type Slider}">
<Setter Property="Stylus.IsPressAndHoldEnabled" Value="false"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Slider}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition MinWidth="{TemplateBinding MinWidth}" Width="Auto"/>
</Grid.ColumnDefinitions>
<UniformGrid x:Name="TrackBackground"
Rows="6"
Columns="0">
<Rectangle Fill="Red" />
<Rectangle Fill="Orange" />
<Rectangle Fill="Yellow" />
<Rectangle Fill="LightGreen" />
<Rectangle Fill="Green" />
<Rectangle Fill="DarkGreen" />
</UniformGrid>
<Canvas Margin="-1,-6">
<Rectangle x:Name="PART_SelectionRange"
Fill="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"
Stroke="{DynamicResource {x:Static SystemColors.ControlDarkDarkBrushKey}}"
StrokeThickness="1.0"
Visibility="Hidden"
Width="4.0"/>
</Canvas>
<Track x:Name="PART_Track">
<Track.DecreaseRepeatButton>
<RepeatButton Command="{x:Static Slider.DecreaseLarge}" Style="{StaticResource SliderRepeatButtonStyle}"/>
</Track.DecreaseRepeatButton>
<Track.IncreaseRepeatButton>
<RepeatButton Command="{x:Static Slider.IncreaseLarge}" Style="{StaticResource SliderRepeatButtonStyle}"/>
</Track.IncreaseRepeatButton>
<Track.Thumb>
<Thumb x:Name="Thumb" Style="{DynamicResource LampadaThumbStyle}"/>
</Track.Thumb>
</Track>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
我通过编辑默认模板来创建它们。