簡述
WPF中Slider分爲三部分,滑塊類型爲Thumb;進度條類型爲RepeatButton,其中:位於滑塊左側或下側部分爲DecreaseRepeatButton,位於滑塊右側或上側部分爲IncreaseRepeatButton。
設置Slider樣式時,一般單獨設置三部分的樣式(Style),然後在Sldier的樣式(Style)中引用它們。
代碼示例
<Style TargetType="{x:Type Thumb}" x:Key="SliderThumbStyle">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Ellipse Width="25" Height="25" Fill="Black"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style TargetType="RepeatButton" x:Key="Slider_DecreaseRepeatBtnStyle">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="RepeatButton">
<Border SnapsToDevicePixels="True" Background="DeepSkyBlue" BorderThickness="1"
CornerRadius="5" BorderBrush="DeepSkyBlue" Height="10"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style TargetType="{x:Type Slider}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Slider">
<Grid>
<Border Name="PART_Border" BorderBrush="Black" BorderThickness="1" CornerRadius="5"
Padding="2" Width="{TemplateBinding Width}" Height="10" Background="LightGray"
HorizontalAlignment="Stretch" VerticalAlignment="Center">
</Border>
<Track Name="PART_Track">
<Track.DecreaseRepeatButton>
<RepeatButton Style="{StaticResource Slider_DecreaseRepeatBtnStyle}">
</RepeatButton>
</Track.DecreaseRepeatButton>
<Track.Thumb>
<Thumb Style="{StaticResource SliderThumbStyle}" />
</Track.Thumb>
</Track>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
結果演示
補充
- Thumb樣式可改爲圖片顯示方式,將Ellipse的Fill屬性改爲使用ImageBrush填充即可;
- 代碼中未引用IncreaseRepeatButton樣式,在Slider樣式中按DecreaseRepeatButton方式添加。