WPF AutoCompleteBox弹出背景

Question

我的用户控件中有几个AutoCompleteBox。框是单独的，用白色背景显示结果，我认为这是默认的。无论出于什么原因，当我的ListBox.ItemContainerStyle中有一个AutoCompleteBox时，弹出窗口上的背景是灰色的。你知道为什么它会不同吗？

下面是白色的示例代码：

    <controls:AutoCompleteBox Grid.Row="6" x:Name="FacilityCompleteBox" TextChanged="FacilityCompleteBox_OnTextChanged" ItemsSource="{Binding}" ValueMemberPath="ListName" SelectedItem="{Binding ElementName=patientVisitControl, Path=ClaimViewModel.SelectedFacility, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                                  LostFocus="CompleteBox_OnLostFocus" Text="{Binding ElementName=patientVisitControl, Path=ClaimViewModel.Visit.Facility.Facility.ListName}">
           <controls:AutoCompleteBox.ItemTemplate>
              <DataTemplate>
                 <TextBlock Text="{Binding Path=ListName}" />
              </DataTemplate>
           </controls:AutoCompleteBox.ItemTemplate>
        </controls:AutoCompleteBox>

这是我的列表框，在弹出窗口上有一个灰色的背景：

    <ListBox x:Name="Resources" Grid.Row="8" ItemsSource="{Binding Path=ClaimViewModel.Claim.PatientVisitResources}" BorderBrush="Transparent" Background="White">
           <ListBox.Resources>
              <Style TargetType="ListBox">
                 <Setter Property="Template">
                    <Setter.Value>
                       <ControlTemplate TargetType="ListBox">
                          <ItemsPresenter HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
                       </ControlTemplate>
                    </Setter.Value>
                 </Setter>
              </Style>
           </ListBox.Resources>
           <ListBox.ItemContainerStyle>
              <Style TargetType="ListBoxItem">
                 <Setter Property="Template">
                    <Setter.Value>
                       <ControlTemplate TargetType="ListBoxItem">
                          <!--<claimOverlay:PopupFilterControl x:Name="ResourceSearchFilter" SearchControlViewModel="{Binding}" ClaimOverlayWindow="{Binding ElementName=patientVisitControl, Path=ClaimOverlayWindow}" Height="30" MaxHeight="30" 
                                                           DeleteResource="ResourceSearchFilter_OnDeleteResource" SelectCard="Default_OnSelectCard" />-->
                          <controls:AutoCompleteBox x:Name="ResourceCompleteBox" TextChanged="ResourceCompleteBox_OnTextChanged" ItemsSource="{Binding}" ValueMemberPath="ListName" 
                                                    LostFocus="CompleteBox_OnLostFocus" Text="{Binding Path=ListName}">
                             <controls:AutoCompleteBox.ItemTemplate>
                                <DataTemplate>
                                   <TextBlock Text="{Binding Path=ListName}" />
                                </DataTemplate>
                             </controls:AutoCompleteBox.ItemTemplate>
                          </controls:AutoCompleteBox>
                       </ControlTemplate>
                    </Setter.Value>
                 </Setter>
              </Style>
           </ListBox.ItemContainerStyle>
        </ListBox>

在我的用户控件中没有任何其他的ListBox样式。

Answer 1

所以我假设在ListBox中的某个地方有一种样式使它变成灰色，所以我使用AutoCompleteBoxes ItemContainerStyle属性创建了以下样式：

    <Style x:Key="ListBoxItemContainerStyle" TargetType="ListBoxItem">
     <Setter Property="Background" Value="White" />
     <Setter Property="BorderBrush" Value="Transparent" />
     <Setter Property="BorderThickness" Value="0" />
     <Setter Property="HorizontalAlignment" Value="Stretch" />
  </Style>

此样式现在将我的列表框弹出背景更改回白色，以匹配我控件中的其他AutoCompleteBoxes。