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本篇文章为大家展示了WPF中怎么自定义ProgressBar滚动条样式,内容简明扼要并且容易理解,绝对能使你眼前一亮,通过这篇文章的详细介绍希望你能有所收获。
一、前言
滚动条一般用于加载进度,我们在看视频的时候或者在浏览网页的时候经常能看到加载进度的页面。在程序开发中,默认的进度加载样式可能跟程序风格不太一样,或者加载进度的时候需要更改一下加载的样式。这个时候就需要通过修改ProgressBar的样式来实现。
二、ProgressBar的基本样式
ProgressBar的基本样式很简单:
<Style TargetType="{x:Type ProgressBar}"> <Setter Property="FocusVisualStyle" Value="{x:Null}"/> <Setter Property="SnapsToDevicePixels" Value="True"/> <Setter Property="Height" Value="15"/> <Setter Property="Background" Value="#6fae5f"/> <Setter Property="FontSize" Value="10"/> <Setter Property="Padding" Value="5,0"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ProgressBar}"> <Grid Background="#00000000"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <VisualStateManager.VisualStateGroups> <VisualStateGroup x:Name="CommonStates"> <VisualState x:Name="Determinate"/> <VisualState x:Name="Indeterminate"> <Storyboard RepeatBehavior="Forever"> <PointAnimationUsingKeyFrames Storyboard.TargetName="Animation" Storyboard.TargetProperty="(UIElement.RenderTransformOrigin)"> <EasingPointKeyFrame KeyTime="0:0:0" Value="0.5,0.5"/> <EasingPointKeyFrame KeyTime="0:0:1.5" Value="1.95,0.5"/> <EasingPointKeyFrame KeyTime="0:0:3" Value="0.5,0.5"/> </PointAnimationUsingKeyFrames> </Storyboard> </VisualState> </VisualStateGroup> </VisualStateManager.VisualStateGroups> <Grid Height="{TemplateBinding Height}"> <Border Background="#000000" CornerRadius="7.5" Opacity="0.05"/> <Border BorderBrush="#000000" BorderThickness="1" CornerRadius="7.5" Opacity="0.1"/> <Grid Margin="{TemplateBinding BorderThickness}"> <Border x:Name="PART_Track"/> <Grid x:Name="PART_Indicator" ClipToBounds="True" HorizontalAlignment="Left" > <Grid.ColumnDefinitions> <ColumnDefinition x:Name="width2"/> <ColumnDefinition x:Name="width3" Width="0"/> </Grid.ColumnDefinitions> <Grid x:Name="Animation" RenderTransformOrigin="0.5,0.5"> <Grid.RenderTransform> <TransformGroup> <ScaleTransform ScaleY="-1" ScaleX="1"/> <SkewTransform AngleY="0" AngleX="0"/> <RotateTransform Angle="180"/> <TranslateTransform/> </TransformGroup> </Grid.RenderTransform> <Border Background="{TemplateBinding Background}" CornerRadius="7.5"> <Viewbox HorizontalAlignment="Left" StretchDirection="DownOnly" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="True"> <TextBlock Foreground="#ffffff" SnapsToDevicePixels="True" FontSize="{TemplateBinding FontSize}" VerticalAlignment="Center" Text="{Binding RelativeSource={RelativeSource TemplatedParent},Path=Value,StringFormat={}{0}%}" RenderTransformOrigin="0.5,0.5"> <TextBlock.RenderTransform> <TransformGroup> <ScaleTransform ScaleY="1" ScaleX="-1"/> <SkewTransform AngleY="0" AngleX="0"/> <RotateTransform Angle="0"/> <TranslateTransform/> </TransformGroup> </TextBlock.RenderTransform> </TextBlock> </Viewbox> </Border> <Border BorderBrush="#000000" BorderThickness="1" CornerRadius="7.5" Opacity="0.1"/> </Grid> </Grid> </Grid> </Grid> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Background" Value="#c5c5c5"/> </Trigger> <Trigger Property="IsIndeterminate" Value="true"> <Setter TargetName="width2" Property="Width" Value="0.25*"/> <Setter TargetName="width3" Property="Width" Value="0.725*"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>
引用示例:
<ProgressBar Height="15" Width="150" Value="40" Margin="10"/>
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