fixed a bug of TabControl

src/Shared/HandyControl_Shared/Controls/TabControl/TabControl.cs

@@ -94,8 +94,8 @@ namespace HandyControl.Controls
         /// </summary>
         public bool ShowCloseButton
         {
-            get => GetShowCloseButton(this);
-            set => SetShowCloseButton(this, value);
+            get => (bool)GetValue(ShowCloseButtonProperty);
+            set => SetValue(ShowCloseButtonProperty, value);
         }
 
         /// <summary>
@@ -115,8 +115,8 @@ namespace HandyControl.Controls
         /// </summary>
         public bool ShowContextMenu
         {
-            get => GetShowContextMenu(this);
-            set => SetShowContextMenu(this, value);
+            get => (bool)GetValue(ShowContextMenuProperty);
+            set => SetValue(ShowContextMenuProperty, value);
         }
 
         /// <summary>

src/Shared/HandyControl_Shared/Controls/TabControl/TabItem.cs

@@ -1,12 +1,14 @@
 using System;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Data;
 using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Media.Animation;
 using HandyControl.Data;
 using HandyControl.Interactivity;
 using HandyControl.Tools;
+using HandyControl.Tools.Extension;
 
 namespace HandyControl.Controls
 {
@@ -137,7 +139,18 @@ namespace HandyControl.Controls
         ///     是否显示上下文菜单
         /// </summary>
         public static readonly DependencyProperty ShowContextMenuProperty =
-            TabControl.ShowContextMenuProperty.AddOwner(typeof(TabItem));
+            TabControl.ShowContextMenuProperty.AddOwner(typeof(TabItem), new FrameworkPropertyMetadata(OnShowContextMenuChanged));
+
+        private static void OnShowContextMenuChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            var ctl = (TabItem) d;
+            if (ctl.Menu != null)
+            {
+                var show = (bool)e.NewValue;
+                ctl.Menu.IsEnabled = show;
+                ctl.Menu.Show(show);
+            }
+        }
 
         /// <summary>
         ///     是否显示上下文菜单
@@ -155,7 +168,30 @@ namespace HandyControl.Controls
             => (bool)element.GetValue(ShowContextMenuProperty);
 
         public static readonly DependencyProperty MenuProperty = DependencyProperty.Register(
-            "Menu", typeof(ContextMenu), typeof(TabItem), new PropertyMetadata(default(ContextMenu)));
+            "Menu", typeof(ContextMenu), typeof(TabItem), new PropertyMetadata(default(ContextMenu), OnMenuChanged));
+
+        private static void OnMenuChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            var ctl = (TabItem) d;
+            ctl.OnMenuChanged(e.NewValue as ContextMenu);
+        }
+
+        private void OnMenuChanged(ContextMenu menu)
+        {
+            if (IsLoaded && menu != null)
+            {
+                menu.DataContext = this;
+                menu.SetBinding(IsEnabledProperty, new Binding(ShowContextMenuProperty.Name)
+                {
+                    Source = this
+                });
+                menu.SetBinding(VisibilityProperty, new Binding(ShowContextMenuProperty.Name)
+                {
+                    Source = this,
+                    Converter = ResourceHelper.GetResource<IValueConverter>("Boolean2VisibilityConverter")
+                });
+            }
+        }
 
         public ContextMenu Menu
         {
@@ -186,6 +222,8 @@ namespace HandyControl.Controls
                 (s, e) => { TabControlParent.CloseAllItems(); }));
             CommandBindings.Add(new CommandBinding(ControlCommands.CloseOther,
                 (s, e) => { TabControlParent.CloseOtherItems(this); }));
+
+            Loaded += (s, e) => OnMenuChanged(Menu);
         }
 
         private TabControl TabControlParent => new Lazy<TabControl>(() => ItemsControl.ItemsControlFromItemContainer(this) as TabControl).Value;

src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml

@@ -13,6 +13,12 @@
         <ResourceDictionary Source="Base/TabControlBaseStyle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
+    <ContextMenu x:Key="TabItemMenu" x:Shared="False">
+        <MenuItem Command="interactivity:ControlCommands.Close" Header="{x:Static langs:Lang.Close}"/>
+        <MenuItem Command="interactivity:ControlCommands.CloseAll" Header="{x:Static langs:Lang.CloseAll}"/>
+        <MenuItem Command="interactivity:ControlCommands.CloseOther" Header="{x:Static langs:Lang.CloseOther}"/>
+    </ContextMenu>
+
     <Style TargetType="controls:TabItem">
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
@@ -23,15 +29,7 @@
         <Setter Property="Padding" Value="16,0"/>
         <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
         <Setter Property="VerticalContentAlignment" Value="Stretch"/>
-        <Setter Property="Menu">
-            <Setter.Value>
-                <ContextMenu IsEnabled="{Binding ShowContextMenu,RelativeSource={RelativeSource AncestorType=controls:TabItem}}" Visibility="{Binding ShowContextMenu,RelativeSource={RelativeSource AncestorType=controls:TabItem},Converter={StaticResource Boolean2VisibilityConverter}}">
-                    <MenuItem Command="interactivity:ControlCommands.Close" Header="{x:Static langs:Lang.Close}"/>
-                    <MenuItem Command="interactivity:ControlCommands.CloseAll" Header="{x:Static langs:Lang.CloseAll}"/>
-                    <MenuItem Command="interactivity:ControlCommands.CloseOther" Header="{x:Static langs:Lang.CloseOther}"/>
-                </ContextMenu>
-            </Setter.Value>
-        </Setter>
+        <Setter Property="Menu" Value="{StaticResource TabItemMenu}"/>
         <Setter Property="HeaderTemplate">
             <Setter.Value>
                 <DataTemplate>