Question

我有一些带有一些对象的简单ListBox。当鼠标在某个对象上时，对象背景颜色会发生变化。

是否可以在禁用对象时避免此颜色更改？（此对象包含必须启用的按钮）

感谢您的帮助。

Answer 1

您可以从ListBoxItem模板中删除可视状态动画。可以找到默认模板here。

没有鼠标悬停背景的样式看起来如此：

<Style x:Key="IgnoreMouseOverItem" TargetType="ListBoxItem">
  <Setter Property="Padding" Value="3" />
  <Setter Property="HorizontalContentAlignment" Value="Left" />
  <Setter Property="VerticalContentAlignment" Value="Top" />
  <Setter Property="Background" Value="Transparent" />
  <Setter Property="BorderThickness" Value="1"/>
  <Setter Property="TabNavigation" Value="Local" />
  <Setter Property="Template">
      <Setter.Value>
          <ControlTemplate TargetType="ListBoxItem">
              <Grid Background="{TemplateBinding Background}">
                  <vsm:VisualStateManager.VisualStateGroups>
                      <vsm:VisualStateGroup x:Name="CommonStates">
                          <vsm:VisualState x:Name="Normal" />
                          <vsm:VisualState x:Name="MouseOver">
                              <!--<Storyboard>
                                  <DoubleAnimation Storyboard.TargetName="fillColor" Storyboard.TargetProperty="Opacity" Duration="0" To=".35"/>
                              </Storyboard>-->
                          </vsm:VisualState>
                          <vsm:VisualState x:Name="Disabled">
                              <Storyboard>
                                  <DoubleAnimation Storyboard.TargetName="contentPresenter" Storyboard.TargetProperty="Opacity" Duration="0" To=".55" />
                              </Storyboard>
                          </vsm:VisualState>
                      </vsm:VisualStateGroup>
                      <vsm:VisualStateGroup x:Name="SelectionStates">
                          <vsm:VisualState x:Name="Unselected" />
                          <vsm:VisualState x:Name="Selected">
                              <Storyboard>
                                  <DoubleAnimation Storyboard.TargetName="fillColor2" Storyboard.TargetProperty="Opacity" Duration="0" To=".75"/>
                              </Storyboard>
                          </vsm:VisualState>
                      </vsm:VisualStateGroup>
                      <vsm:VisualStateGroup x:Name="FocusStates">
                          <vsm:VisualState x:Name="Focused">
                              <Storyboard>
                                  <ObjectAnimationUsingKeyFrames Storyboard.TargetName="FocusVisualElement" Storyboard.TargetProperty="Visibility" Duration="0">
                                      <DiscreteObjectKeyFrame KeyTime="0">
                                          <DiscreteObjectKeyFrame.Value>
                                              <Visibility>Visible</Visibility>
                                          </DiscreteObjectKeyFrame.Value>
                                      </DiscreteObjectKeyFrame>
                                  </ObjectAnimationUsingKeyFrames>
                              </Storyboard>
                          </vsm:VisualState>
                          <vsm:VisualState x:Name="Unfocused"/>
                      </vsm:VisualStateGroup>
                  </vsm:VisualStateManager.VisualStateGroups>
                  <Rectangle x:Name="fillColor" Opacity="0" Fill="#FFBADDE9" IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
                  <Rectangle x:Name="fillColor2" Opacity="0" Fill="#FFBADDE9" IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
                  <ContentPresenter
                          x:Name="contentPresenter"
                          Content="{TemplateBinding Content}"
                          ContentTemplate="{TemplateBinding ContentTemplate}"
                          HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                          Margin="{TemplateBinding Padding}"/>
                  <Rectangle x:Name="FocusVisualElement" Stroke="#FF6DBDD1" StrokeThickness="1" Visibility="Collapsed" RadiusX="1" RadiusY="1" />
              </Grid>
          </ControlTemplate>
      </Setter.Value>
  </Setter>
</Style>

然后将新样式应用于ListBox

<ListBox ItemContainerStyle="{StaticResource IgnoreMouseOverItem}" />

Answer 2

如果您只是想避免突出显示，可以使用ItemsControl。

当鼠标放在项目上时，如何禁用ListBox中项目的颜色变化？

2 个答案: