fixed #487

Author: NaBian

src/Shared/HandyControl_Shared/Controls/PropertyGrid/PropertyGrid.cs

@@ -29,8 +29,8 @@ public class PropertyGrid : Control
 
         public PropertyGrid()
         {
-            CommandBindings.Add(new CommandBinding(ControlCommands.SortByCategory, SortByCategory));
-            CommandBindings.Add(new CommandBinding(ControlCommands.SortByName, SortByName));
+            CommandBindings.Add(new CommandBinding(ControlCommands.SortByCategory, SortByCategory, (s, e) => e.CanExecute = ShowSortButton));
+            CommandBindings.Add(new CommandBinding(ControlCommands.SortByName, SortByName, (s, e)=> e.CanExecute = ShowSortButton));
         }
 
         public virtual PropertyResolver PropertyResolver { get; } = new PropertyResolver();
@@ -93,6 +93,15 @@ public double MinTitleWidth
             set => SetValue(MinTitleWidthProperty, value);
         }
 
+        public static readonly DependencyProperty ShowSortButtonProperty = DependencyProperty.Register(
+            "ShowSortButton", typeof(bool), typeof(PropertyGrid), new PropertyMetadata(ValueBoxes.TrueBox));
+
+        public bool ShowSortButton
+        {
+            get => (bool) GetValue(ShowSortButtonProperty);
+            set => SetValue(ShowSortButtonProperty, value);
+        }
+
         public override void OnApplyTemplate()
         {
             if (_searchBar != null)

src/Shared/HandyControl_Shared/Themes/Styles/Base/PropertyGridBaseStyle.xaml

@@ -132,15 +132,15 @@
                                 <RowDefinition/>
                             </Grid.RowDefinitions>
                             <DockPanel LastChildFill="True" Margin="0,0,0,6">
-                                <hc:ButtonGroup Style="{StaticResource ButtonGroupSolid}">
+                                <hc:ButtonGroup Margin="0,0,6,0" Visibility="{Binding ShowSortButton,RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource Boolean2VisibilityConverter}}" Style="{StaticResource ButtonGroupSolid}">
                                     <RadioButton Command="interactivity:ControlCommands.SortByCategory" IsChecked="True">
                                         <Rectangle Width="16" Height="16" Fill="{StaticResource SortByCategoryDrawingBrush}"/>
                                     </RadioButton>
                                     <RadioButton Command="interactivity:ControlCommands.SortByName">
                                         <Rectangle Width="16" Height="16" Fill="{StaticResource SortByNameDrawingBrush}"/>
                                     </RadioButton>
                                 </hc:ButtonGroup>
-                                <hc:SearchBar x:Name="PART_SearchBar" IsRealTime="True" Margin="6,0,0,0" ShowClearButton="True" Style="{StaticResource SearchBarPlus}"/>
+                                <hc:SearchBar x:Name="PART_SearchBar" IsRealTime="True" ShowClearButton="True" Style="{StaticResource SearchBarPlus}"/>
                             </DockPanel>
                             <ScrollViewer Grid.Row="1">
                                 <hc:PropertyItemsControl x:Name="PART_ItemsControl" Style="{StaticResource PropertyItemsControlBaseStyle}">