如何在WPF中的滑塊控件中填充背景或圖像中的漸變作為背景？

Question

我正在使用wpf的滑塊控件，我想根據我所附的圖像填充滑塊控件的背景設計，請幫助我如何在wpf中使用相同的漸變填充背景？

Answer 1

    <UserControl.Resources>
    <Style x:Key="SliderRepeatButton" TargetType="RepeatButton">                       
        <Setter Property="Focusable" Value="false" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="RepeatButton">
                    <Border Height="10">
                        <Border.Background>
                            <ImageBrush ImageSource="darblue_tab.png"></ImageBrush>
                        </Border.Background>
                    </Border>

                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="SliderRepeatButton1" TargetType="RepeatButton">
        <Setter Property="Focusable" Value="false" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="RepeatButton">
                    <Border SnapsToDevicePixels="True" Background="Green"   Height="10"/>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="SliderThumb" TargetType="Thumb">
        <Setter Property="Focusable" Value="false" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Thumb">
                    <Ellipse Height="20" Width="20">
                        <Ellipse.Fill>
                            <ImageBrush ImageSource="darblue_tab.png"></ImageBrush>
                        </Ellipse.Fill>
                    </Ellipse>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <ControlTemplate x:Key="Slider"  TargetType="Slider">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" MinHeight="{TemplateBinding MinHeight}" />
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <Track Grid.Row="1" x:Name="PART_Track"   >
                <Track.DecreaseRepeatButton>
                    <RepeatButton Style="{StaticResource SliderRepeatButton1}"  Command="Slider.DecreaseLarge" />
                </Track.DecreaseRepeatButton>
                <Track.Thumb>
                    <Thumb Style="{StaticResource SliderThumb}"  />
                </Track.Thumb>
                <Track.IncreaseRepeatButton>
                    <RepeatButton Style="{StaticResource SliderRepeatButton}" Command="Slider.IncreaseLarge" />
                </Track.IncreaseRepeatButton>
            </Track>
        </Grid>
    </ControlTemplate>

    <Style x:Key="Horizontal_Slider" TargetType="Slider">
        <Setter Property="Focusable" Value="False"/>       
        <Style.Triggers>
            <Trigger Property="Orientation" Value="Horizontal">                   
                <Setter Property="Template" Value="{StaticResource Slider}" />
            </Trigger>
        </Style.Triggers>
    </Style>
</UserControl.Resources>

<Slider Style="{StaticResource Horizontal_Slider}" VerticalAlignment="Center"  Value="500" Width="300" Margin="50,0,50,0"></Slider>

Answer 2

您必須包含RelativeTransform才能在lineargradient筆刷中獲取條紋背景。請嘗試以下背景筆刷代碼

<LinearGradientBrush StartPoint="0,0" EndPoint="1,1" SpreadMethod="Repeat">
                <GradientStop Color="#FF00AEEF" Offset="0"/>
                <GradientStop Color="#FF00AEEF" Offset="0.5"/>
                <GradientStop Color="#FF8BD6F0" Offset="0.5"/>
                <GradientStop Color="#FF8BD6F0" Offset="1"/>
                <LinearGradientBrush.RelativeTransform>
    <ScaleTransform ScaleX="0.075" ScaleY="0.010"/>
</LinearGradientBrush.RelativeTransform>
            </LinearGradientBrush>