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继续聊WPF——自定义滚动条
关键点:Track控件没有默认模板,它包括三个部分
DecreaseRepeatButton——这是一个RepeatButton即滑块左(上)的部分;
IncreaseRepeatButton——同上,即滑块右(下)部分;
Thumb——很明显了,这是拖动的滑块,请参考前面的文章。
<Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300"> <Window.Resources> <ControlTemplate x:Key="myThumb" TargetType="{x:Type Thumb}"> <Border Name="bd" BorderThickness="0.8" CornerRadius="2" Height="{TemplateBinding Height}" Width="{TemplateBinding Width}" Margin="0,1,0,1"> <Border.Background> <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1"> <GradientStop Color="#112299" Offset="0"/> <GradientStop Color="#3522AA" Offset="1"/> </LinearGradientBrush> </Border.Background> </Border> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Trigger.Setters> <Setter TargetName="bd" Property="BorderBrush" Value="#66BBEE"/> </Trigger.Setters> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> <ControlTemplate x:Key="myRepBt" TargetType="{x:Type RepeatButton}"> <Border Margin="0,2,0,2" BorderThickness="0.7" BorderBrush="#BBBBBB"> <Border.Background> <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1"> <GradientStop Color="White" Offset="0"/> <GradientStop Color="LightGray" Offset="1"/> </LinearGradientBrush> </Border.Background> </Border> </ControlTemplate> <ControlTemplate x:Key="rbtForScrollBar" TargetType="{x:Type RepeatButton}"> <Border CornerRadius="2" Margin="0,1,0,1"> <Border.Background> <LinearGradientBrush StartPoint="0,0" EndPoint="1,1"> <GradientStop Color="Yellow" Offset="0"/> <GradientStop Color="Orange" Offset="1"/> </LinearGradientBrush> </Border.Background> <Path VerticalAlignment="Center" HorizontalAlignment="Center" Data="{Binding Path=Content,RelativeSource={RelativeSource TemplatedParent}}" Fill="Black"/> </Border> </ControlTemplate> <ControlTemplate x:Key="ScrollTmp" TargetType="{x:Type ScrollBar}"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition MaxWidth="20"/> <ColumnDefinition Width="*"/> <ColumnDefinition MaxWidth="20"/> </Grid.ColumnDefinitions> <Border Grid.ColumnSpan="3" /> <RepeatButton Template="{StaticResource rbtForScrollBar}" Grid.Column="0" Margin="0,1,0,1" Command="ScrollBar.LineLeftCommand" Content="M0,4 L4,8 L4,0 Z"/> <Track Grid.Column="1" Name="PART_Track" Maximum="{TemplateBinding Maximum}" Minimum="{TemplateBinding Minimum}" Value="{TemplateBinding Value}"> <Track.DecreaseRepeatButton> <RepeatButton Template="{StaticResource myRepBt}" Command="ScrollBar.PageLeftCommand"/> </Track.DecreaseRepeatButton> <Track.IncreaseRepeatButton> <RepeatButton Template="{StaticResource myRepBt}" Command="ScrollBar.PageRightCommand"/> </Track.IncreaseRepeatButton> <Track.Thumb> <Thumb Width="auto" Template="{StaticResource myThumb}"/> </Track.Thumb> </Track> <RepeatButton Template="{StaticResource rbtForScrollBar}" Grid.Column="3" Margin="0,1,0,1" Command="ScrollBar.LineRightCommand" Content="M0,0 L0,8 4,4 Z"/> </Grid> </ControlTemplate> </Window.Resources> <Canvas Margin="10,10,10,10"> <ScrollBar Canvas.Left="5" Canvas.Top="5" Width="260" Height="28" Template="{StaticResource ScrollTmp}" Orientation="Horizontal" Maximum="5" Minimum="0"/> </Canvas> </Window>
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原文地址:https://www.cnblogs.com/javawebsoa/p/2457970.html
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