Lower opacity when ListBox not enabled

Author: mgnslndh

MainDemo.Wpf/Lists.xaml

@@ -14,17 +14,22 @@
  </ResourceDictionary>
  </UserControl.Resources>
  <Grid Margin="8">
+ <Grid.RowDefinitions>
+ <RowDefinition/>
+ <RowDefinition Height="Auto"/>
+ </Grid.RowDefinitions>
  <Grid.ColumnDefinitions>
  <ColumnDefinition Width="1*" />
  <ColumnDefinition Width="1*" />
  <ColumnDefinition Width="1*" />
  </Grid.ColumnDefinitions>
- <ListBox Grid.Column="0">
+ <ListBox Grid.Column="0" IsEnabled="{Binding IsChecked, ElementName=EnableListBox}">
  <TextBlock>Plain</TextBlock>
  <TextBlock>Old</TextBlock>
  <TextBlock>ListBox</TextBlock>
  <TextBlock>Full of junk</TextBlock>
  </ListBox>
+ <CheckBox Name="EnableListBox" Grid.Row="1" IsChecked="True">Enabled</CheckBox>
  <!-- piece together your own items control to create some nice stuff that will make everyone think you are cool. and rightly so, because you are cool. you might even be a hipster for all I know -->
  <ItemsControl Grid.Column="1" ItemsSource="{Binding Items1}"
  Grid.IsSharedSizeScope="True"

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.ListBox.xaml

@@ -133,6 +133,9 @@
  <Trigger Property="IsSelected" Value="True">
  <Setter TargetName="Ripple" Property="Opacity" Value=".92" />
  </Trigger>
+ <Trigger Property="IsEnabled" Value="False">
+ <Setter Property="Opacity" Value=".56" />
+ </Trigger>
  </ControlTemplate.Triggers>
  </ControlTemplate>
  </Setter.Value>
@@ -270,6 +273,11 @@
  Padding="{TemplateBinding Padding}"/>
  </Grid>
  </Border>
+ <ControlTemplate.Triggers>
+ <Trigger Property="IsEnabled" Value="False">
+ <Setter Property="Opacity" Value=".56" />
+ </Trigger>
+ </ControlTemplate.Triggers>
 </ControlTemplate>
 </Setter.Value>
 </Setter>