WPF 重写ListBox(透明效果)

<UserControl d:DesignHeight="460" d:DesignWidth="300" 
             x:Name="UCcontrol">
    <UserControl.Resources>
        <!-- ScrollViewer -->
        <Style x:Key="ScrollBarThumb" TargetType="Thumb">
            <Setter Property="OverridesDefaultStyle" Value="true" />
            <Setter Property="BorderBrush" Value="Gray" />
            <Setter Property="IsTabStop" Value="false" />
            <Setter Property="Opacity" Value="1" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Thumb">
                        <Rectangle x:Name="recThumb"  Fill="{TemplateBinding BorderBrush}" RadiusX="3"  RadiusY="3" />
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsDragging" Value="True">
                                <Setter Property="Fill" TargetName="recThumb" Value="#606060" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="VerticalScrollBarPageButton"
               TargetType="RepeatButton">
            <Setter Property="OverridesDefaultStyle" Value="true" />
            <Setter Property="Background" Value="Transparent" />
            <Setter Property="Focusable" Value="false" />
            <Setter Property="IsTabStop" Value="false" />
            <Setter Property="Opacity" Value="0" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="RepeatButton">
                        <Rectangle Fill="{TemplateBinding Background}" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" />
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="HorizontalScrollBarPageButton"
               TargetType="RepeatButton">
            <Setter Property="OverridesDefaultStyle" Value="true" />
            <Setter Property="Background" Value="Transparent" />
            <Setter Property="Focusable" Value="false" />
            <Setter Property="IsTabStop" Value="false" />
            <Setter Property="Opacity" Value="0" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="RepeatButton">
                        <Rectangle Fill="{TemplateBinding Background}" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" />
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="for_scrollbar"
               TargetType="ScrollBar">
            <Setter Property="Stylus.IsPressAndHoldEnabled" Value="false" />
            <Setter Property="Stylus.IsFlicksEnabled" Value="false" />
            <Setter Property="Background" Value="Transparent" />
            <Setter Property="Margin" Value="0,1,0,6" />
            <Setter Property="Width" Value="10" />
            <Setter Property="MinWidth" Value="10" />
            <Setter Property="Opacity" Value="0" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ScrollBar">
                        <Grid x:Name="Bg" SnapsToDevicePixels="true">
                            <Track x:Name="PART_Track"   IsEnabled="{TemplateBinding IsMouseOver}" IsDirectionReversed="true">
                                <Track.DecreaseRepeatButton>
                                    <RepeatButton Style="{StaticResource VerticalScrollBarPageButton}" Command="{x:Static ScrollBar.PageUpCommand}" />
                                </Track.DecreaseRepeatButton>
                                <Track.IncreaseRepeatButton>
                                    <RepeatButton Style="{StaticResource VerticalScrollBarPageButton}" Command="{x:Static ScrollBar.PageDownCommand}" />
                                </Track.IncreaseRepeatButton>
                                <Track.Thumb>
                                    <Thumb Style="{StaticResource ScrollBarThumb}" />
                                </Track.Thumb>
                            </Track>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
            <Style.Triggers>
                <Trigger Property="Orientation" Value="Horizontal">
                    <Setter Property="Background" Value="Transparent" />
                    <Setter Property="Margin" Value="1,0,6,0" />
                    <Setter Property="Height" Value="10" />
                    <Setter Property="MinHeight" Value="10" />
                    <Setter Property="Width" Value="Auto" />
                    <Setter Property="Opacity" Value="0" />
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="ScrollBar">
                                <Grid x:Name="Bg" SnapsToDevicePixels="true">
                                    <Track x:Name="PART_Track" IsEnabled="{TemplateBinding IsMouseOver}">
                                        <Track.DecreaseRepeatButton>
                                            <RepeatButton Style="{StaticResource HorizontalScrollBarPageButton}" Command="{x:Static ScrollBar.PageLeftCommand}" />
                                        </Track.DecreaseRepeatButton>
                                        <Track.IncreaseRepeatButton>
                                            <RepeatButton Style="{StaticResource HorizontalScrollBarPageButton}"  Command="{x:Static ScrollBar.PageRightCommand}" />
                                        </Track.IncreaseRepeatButton>
                                        <Track.Thumb>
                                            <Thumb Style="{StaticResource ScrollBarThumb}" />
                                        </Track.Thumb>
                                    </Track>
                                </Grid>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Trigger>
            </Style.Triggers>
        </Style>
        <Style TargetType="ScrollViewer">
            <Setter Property="BorderBrush" Value="Black" />
            <Setter Property="BorderThickness"  Value="0" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ScrollViewer">
                        <Border BorderBrush="{TemplateBinding BorderBrush}"
                            BorderThickness="{TemplateBinding BorderThickness}"
                            SnapsToDevicePixels="True">
                            <Grid Background="{TemplateBinding Background}">
                                <ScrollContentPresenter
                                Cursor="{TemplateBinding Cursor}"
                                Margin="{TemplateBinding Padding}"
                                ContentTemplate="{TemplateBinding ContentTemplate}" />
                                <ScrollBar x:Name="PART_VerticalScrollBar"
                                       Opacity="1"
                                       HorizontalAlignment="Right"
                                       Maximum="{TemplateBinding ScrollableHeight}"
                                       Orientation="Vertical"
                                       Style="{StaticResource for_scrollbar}"
                                       ViewportSize="{TemplateBinding ViewportHeight}"
                                       Value="{TemplateBinding VerticalOffset}"
                                       Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"
                                       Width="10" />
                                <ScrollBar x:Name="PART_HorizontalScrollBar"
                                       Opacity="1"
                                       Maximum="{TemplateBinding ScrollableWidth}"
                                       Orientation="Horizontal"
                                       Style="{StaticResource for_scrollbar}"
                                       VerticalAlignment="Bottom"
                                       Value="{TemplateBinding HorizontalOffset}"
                                       ViewportSize="{TemplateBinding ViewportWidth}"
                                       Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"
                                       Height="10" />
                            </Grid>
                        </Border>
                        <ControlTemplate.Triggers>
                            <EventTrigger RoutedEvent="ScrollChanged">
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation
                                        Storyboard.TargetName="PART_VerticalScrollBar"
                                        Storyboard.TargetProperty="Opacity"
                                        To="1"
                                        Duration="0:0:1" />
                                        <DoubleAnimation
                                        Storyboard.TargetName="PART_VerticalScrollBar"
                                        Storyboard.TargetProperty="Opacity"
                                        To="0"
                                        Duration="0:0:1"
                                        BeginTime="0:0:1" />
                                    </Storyboard>
                                </BeginStoryboard>
                            </EventTrigger>
                            <EventTrigger RoutedEvent="MouseEnter"
                                      SourceName="PART_VerticalScrollBar">
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation
                                        Storyboard.TargetName="PART_VerticalScrollBar"
                                        Storyboard.TargetProperty="Opacity"
                                        To="1"
                                        Duration="0:0:1" />
                                    </Storyboard>
                                </BeginStoryboard>
                            </EventTrigger>
                            <EventTrigger RoutedEvent="MouseLeave"
                                      SourceName="PART_VerticalScrollBar">
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimation
                                        Storyboard.TargetName="PART_VerticalScrollBar"
                                        Storyboard.TargetProperty="Opacity"
                                        To="0"
                                        Duration="0:0:1" />
                                    </Storyboard>
                                </BeginStoryboard>
                            </EventTrigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <local:FontWeightConverter x:Key="FontWeightConverterStyle" />
        <local:ThicknessConverter x:Key="ThicknessConverterStyle" />
        <local:OpacityConverter x:Key="OpacityConverterStyle" />
        <!--item-->
        <DataTemplate x:Key="rect">
            <Grid Name="gd" Height="60">
                <Border Name="border" 
                        ToolTip="{Binding BSM}" 
                        Background="#495A5A"
                        BorderBrush="White" 
                        BorderThickness="0,0,0,1" 
                        Opacity="{Binding Path=DM,Converter={StaticResource OpacityConverterStyle}}"
                        MouseLeftButtonDown="border_MouseLeftButtonDown">
                </Border>
                <StackPanel Orientation="Horizontal"
                            Margin="{Binding Path=DM,Converter={StaticResource ThicknessConverterStyle}}">
                    <TextBlock FontWeight="{Binding Path=DM,Converter={StaticResource FontWeightConverterStyle}}"
                               HorizontalAlignment="Center"
                               VerticalAlignment="Center"
                               ToolTip="{Binding MC,Mode=TwoWay}" 
                               Text="{Binding MC,Mode=TwoWay}" 
                               FontSize="24"
                               Foreground="White"
                               Margin="5,0" />
                </StackPanel>
            </Grid>
            <DataTemplate.Triggers>
                <!--鼠标移入-->
                <MultiTrigger>
                    <MultiTrigger.Conditions>
                        <Condition Property="IsMouseOver" Value="True"/>
                    </MultiTrigger.Conditions>
                    <Setter TargetName="gd" Property="Background"  Value="Black"/>
                    <Setter TargetName="gd" Property="Opacity" Value="0.5"/>
                </MultiTrigger>
            </DataTemplate.Triggers>
        </DataTemplate>
        <!--item 方式-->
        <ItemsPanelTemplate x:Key="items">
            <StackPanel Orientation="Vertical" VerticalAlignment="Top" 
                        HorizontalAlignment="Left" />
        </ItemsPanelTemplate>
    </UserControl.Resources>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="50"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <Border Panel.ZIndex="0" 
                BorderThickness="2"
                BorderBrush="White"
                Width="{Binding ElementName=UCcontrol,Path=Width}" 
                Height="{Binding ElementName=UCcontrol,Path=Height}"
                CornerRadius="10" Opacity="0.5" Grid.RowSpan="2">
            <Border.Background>
                <LinearGradientBrush EndPoint="0.5,1" 
                                     MappingMode="RelativeToBoundingBox" 
                                     StartPoint="0.5,0">
                    <GradientStop Color="#FF787D79"/>
                    <GradientStop Offset="1"/>
                </LinearGradientBrush>
            </Border.Background>
        </Border>

        <TextBlock Text="行政区划" 
                   Margin="15,0,0,0"
                   FontSize="28"
                   Foreground="White"
                   HorizontalAlignment="Left"
                   VerticalAlignment="Bottom"
                   Grid.Row="0"
                   />

        <ListBox Name="Lbox"
                 Margin="10"
                 VerticalContentAlignment="Bottom"
                 VerticalAlignment="Bottom"
                 Panel.ZIndex="1"
                 BorderThickness="0"
                 ScrollViewer.HorizontalScrollBarVisibility="Hidden"
                 ScrollViewer.VerticalScrollBarVisibility="Auto"
                 ItemTemplate="{StaticResource ResourceKey=rect}"
                 ItemsPanel="{StaticResource ResourceKey=items}" 
                 Background="Transparent"
                 Grid.Row="1">
            <ListBox.Style>
                <Style>
                    <Style.Resources>
                        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}"
                                 Color="Black" Opacity="0.8"/>
                    </Style.Resources>
                </Style>
            </ListBox.Style>
            <ListBox.ItemContainerStyle>
                <Style x:Name="s" TargetType="ListBoxItem">
                    <Setter Property="Width" Value="{Binding ElementName=UCcontrol,Path=Width}"/>
                    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
                    <Setter Property="HorizontalAlignment" Value="Stretch"/>
                    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
                    <Setter Property="VerticalAlignment" Value="Stretch"/>
                </Style>
            </ListBox.ItemContainerStyle>
        </ListBox>
    </Grid>
</UserControl>

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Kingo.Land.JCJG.Controls
{
    /// <summary>
    /// UCListBox.xaml 的交互逻辑
    /// </summary>
    public partial class UCListBox : UserControl
    {
        private string OracleConn = System.Configuration.ConfigurationManager.AppSettings["OracleConn"];

        public XZQModelList XZQ = new XZQModelList();
        public UCListBox()
        {
            InitializeComponent();
            Init();
        }

        public void Init()
        {
            DataTable dt0 = GetData("select distinct CMC,CDM from tb_hcqy");
            foreach (DataRow item0 in dt0.Rows)
            {
                XZQ.Add(new Controls.XZQModel
                {
                    MC = item0["CMC"].ToString(),
                    DM = item0["CDM"].ToString(),
                });
                DataTable dt1 = GetData("select distinct XMC,XDM from tb_hcqy where CMC='" + item0["CMC"].ToString() + "'");
                foreach (DataRow item1 in dt1.Rows)
                {
                    XZQ.Add(new Controls.XZQModel
                    {
                        MC = item1["XMC"].ToString(),
                        DM = item1["XDM"].ToString(),
                    });
                }
            }
            //将P1数据绑定给listbox控件
            Lbox.ItemsSource = XZQ;
        }


        //选中行政区
        private void border_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            var bor = (sender as Border).ToolTip;
        }

        public DataTable GetData(string sql)
        {
            Kingo.Common.DBOperator.IRDBHelper dbHelper = Kingo.Common.DBOperator.RDBFactory.CreateDbHelper(OracleConn, Kingo.Common.DBOperator.DatabaseType.Oracle);
            DataTable d = dbHelper.ExecuteDatatable("goodgoodstudy", sql, true);
            dbHelper.DisConnect();
            return d;
        }
    }

    public class XZQModelList : ObservableCollection<XZQModel>
    {
    }

    /// <summary>
    /// 用来存放原始影像表部分数据
    /// </summary>
    public class XZQModel
    {
        /// <summary>
        /// 行政区 标识码
        /// </summary>
        public string BSM { get; set; }

        /// <summary>
        /// 行政区名称
        /// </summary>
        public string MC { get; set; }

        /// <summary>
        /// 行政区父级Id
        /// </summary>
        public string DM { get; set; }

    }

    /// <summary>
    /// 定义转换器，将ListBox中市级的变为加粗字体
    /// </summary>
    [ValueConversion(typeof(string), typeof(FontWeight))]
    public class FontWeightConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value.ToString().Length != 4)
                return FontWeights.Normal;
            else
                return FontWeights.Black;
        }
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    /// <summary>
    /// 转换器 位置
    /// </summary>
    [ValueConversion(typeof(string), typeof(Thickness))]
    public class ThicknessConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value.ToString().Length == 4)
                return new Thickness(10, 5, 0, 5);
            else
                return new Thickness(30, 5, 0, 5);
        }
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    /// <summary>
    /// 转换器 透明度
    /// </summary>
    [ValueConversion(typeof(string), typeof(double))]
    public class OpacityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value.ToString().Length == 4)
                return 0.2;
            else
                return 0.1;
        }
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}

 <UC:UCListBox HorizontalAlignment="Left" Height="500" Width="600"/>

效果：