Using converter parameter to invert boolean to visibility.

aschearer · Feb 27, 2017 · c3ddbc5 · c3ddbc5
1 parent 7c0c57d
commit c3ddbc5
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Showing 4 changed files with 15 additions and 30 deletions.
diff --git a/Source/UnitySizeExplorer.WPF/UnitySizeExplorer.WPF.csproj b/Source/UnitySizeExplorer.WPF/UnitySizeExplorer.WPF.csproj
@@ -94,8 +94,7 @@
     <Compile Include="ViewModels\FileItemViewModel.cs" />
     <Compile Include="ViewModels\Pages\StartPageViewModel.cs" />
     <Compile Include="ViewModels\BootstrapperViewModel.cs" />
-    <Compile Include="Views\InvertedBooleanToVisibilityConvertor.cs" />
-    <Compile Include="Views\BooleanToVisibilityConvertor.cs" />
+    <Compile Include="Views\BooleanToVisibilityConverter.cs" />
     <Compile Include="Views\Pages\StartPageView.xaml.cs">
       <DependentUpon>StartPageView.xaml</DependentUpon>
     </Compile>

diff --git a/...WPF/Views/BooleanToVisibilityConvertor.cs → ...WPF/Views/BooleanToVisibilityConverter.cs b/...WPF/Views/BooleanToVisibilityConvertor.cs → ...WPF/Views/BooleanToVisibilityConverter.cs
@@ -5,11 +5,19 @@
     using System.Windows;
     using System.Windows.Data;
 
-    public class BooleanToVisibilityConvertor : IValueConverter
+    public class BooleanToVisibilityConverter : IValueConverter
     {
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             var boolValue = (bool)value;
+            if (parameter != null)
+            {
+                if (bool.Parse((string)parameter))
+                {
+                    boolValue = !boolValue;
+                }
+            }
+
             return boolValue ? Visibility.Visible : Visibility.Collapsed;
         }
 

diff --git a/Source/UnitySizeExplorer.WPF/Views/InvertedBooleanToVisibilityConvertor.cs b/Source/UnitySizeExplorer.WPF/Views/InvertedBooleanToVisibilityConvertor.cs
diff --git a/Source/UnitySizeExplorer.WPF/Views/Pages/WorkspacePageView.xaml b/Source/UnitySizeExplorer.WPF/Views/Pages/WorkspacePageView.xaml
@@ -21,18 +21,17 @@
     </UserControl.CommandBindings>
     <!-- Static Resources -->
     <UserControl.Resources>
-        <view:BooleanToVisibilityConvertor x:Key="BooleanToVisibilityConvertor" />
-        <view:InvertedBooleanToVisibilityConvertor x:Key="InvertedBooleanToVisibilityConvertor" />
+        <view:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
         <HierarchicalDataTemplate 
              x:Key="CheckBoxItemTemplate"
              ItemsSource="{Binding Children, Mode=OneTime}">
             <Grid HorizontalAlignment="Stretch">
                 <Grid.ContextMenu>
                     <ContextMenu>
-                        <MenuItem Header="Check" Visibility="{Binding IsChecked, Converter={StaticResource InvertedBooleanToVisibilityConvertor}}" Click="OnToggleCheckbox"/>
-                        <MenuItem Header="Uncheck" Visibility="{Binding IsChecked, Converter={StaticResource BooleanToVisibilityConvertor}}" Click="OnToggleCheckbox"/>
-                        <MenuItem Header="Expand" Visibility="{Binding IsExpanded, Converter={StaticResource InvertedBooleanToVisibilityConvertor}}" Click="OnToggleExpanded"/>
-                        <MenuItem Header="Collapse" Visibility="{Binding IsExpanded, Converter={StaticResource BooleanToVisibilityConvertor}}" Click="OnToggleExpanded"/>
+                        <MenuItem Header="Check" Visibility="{Binding IsChecked, Converter={StaticResource BooleanToVisibilityConverter}, ConverterParameter=TRUE}" Click="OnToggleCheckbox"/>
+                        <MenuItem Header="Uncheck" Visibility="{Binding IsChecked, Converter={StaticResource BooleanToVisibilityConverter}}" Click="OnToggleCheckbox"/>
+                        <MenuItem Header="Expand" Visibility="{Binding IsExpanded, Converter={StaticResource BooleanToVisibilityConverter}, ConverterParameter=TRUE}" Click="OnToggleExpanded"/>
+                        <MenuItem Header="Collapse" Visibility="{Binding IsExpanded, Converter={StaticResource BooleanToVisibilityConverter}}" Click="OnToggleExpanded"/>
                         <MenuItem Header="Hide" Click="OnHideItem"/>
                         <Separator />
                         <MenuItem Header="Open in File Explorer" Click="OnOpenFileExplorer"/>