WPF中listbox点击时，整个背景变成蓝色，怎么让整个背景不变色，只是让单个模块获取焦点

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< Window      xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"      xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml"      x:Class = "listbox.MainWindow"      x:Name = "Window"      Title = "MainWindow"      Width = "640"  Height = "480"  Loaded = "Window_Loaded" >      < Window.Resources >          < Style  x:Key = "ListBoxItemStyle1"  TargetType = "{x:Type ListBoxItem}" >              < Setter  Property = "Background"  Value = "Transparent" />              < Setter  Property = "HorizontalContentAlignment"  Value = "{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />              < Setter  Property = "VerticalContentAlignment"  Value = "{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />              < Setter  Property = "Padding"  Value = "2,0,0,0" />              < Setter  Property = "Template" >                  < Setter.Value >                      < ControlTemplate  TargetType = "{x:Type ListBoxItem}" >                          < Border  x:Name = "Bd"  BorderBrush = "{TemplateBinding BorderBrush}"  BorderThickness = "{TemplateBinding BorderThickness}"  Background = "{TemplateBinding Background}"  Padding = "{TemplateBinding Padding}"  SnapsToDevicePixels = "true" >                              < ContentPresenter  HorizontalAlignment = "{TemplateBinding HorizontalContentAlignment}"  SnapsToDevicePixels = "{TemplateBinding SnapsToDevicePixels}"  VerticalAlignment = "{TemplateBinding VerticalContentAlignment}" />                          </ Border >                          < ControlTemplate.Triggers >                              < Trigger  Property = "IsMouseOver"  Value = "True" >                                  < Setter  Property = "Background"  TargetName = "Bd" >                                      < Setter.Value >                                          < LinearGradientBrush  EndPoint = "0.5,1"  StartPoint = "0.5,0" >                                              < GradientStop  Color = "#8200958B"  Offset = "1" />                                              < GradientStop  Color = "#7500FFED"  Offset = "0" />                                          </ LinearGradientBrush >                                      </ Setter.Value >                                  </ Setter >                              </ Trigger >                              < Trigger  Property = "IsSelected"  Value = "true" >                                  < Setter  Property = "Foreground"  Value = "{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />                              </ Trigger >                              < MultiTrigger >                                  < MultiTrigger.Conditions >                                      < Condition  Property = "IsSelected"  Value = "true" />                                      < Condition  Property = "Selector.IsSelectionActive"  Value = "false" />                                  </ MultiTrigger.Conditions >                                  < Setter  Property = "Background"  TargetName = "Bd"  Value = "{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />                                  < Setter  Property = "Foreground"  Value = "{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" />                              </ MultiTrigger >                              < Trigger  Property = "IsEnabled"  Value = "false" >                                  < Setter  Property = "Foreground"  Value = "{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />                              </ Trigger >                          </ ControlTemplate.Triggers >                      </ ControlTemplate >                  </ Setter.Value >              </ Setter >          </ Style >      </ Window.Resources >        < Grid  x:Name = "LayoutRoot" >          < ListBox  HorizontalAlignment = "Left"  Margin = "128,8,0,24"  Width = "172"  ItemContainerStyle = "{DynamicResource ListBoxItemStyle1}"  Name = "listbox1"  FontSize = "16"  />      </ Grid > </ Window >

把IsSelected触发器下面的改变背景色属性删掉
<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/> 这个删掉就可以 

如果发现选中的时候变成空白，可以把前景色设置成不是白色的颜色