Repository: ant-design-blazor/ant-design-blazor (csharp)

Issue:
Reusetab and context menu display error
### Describe the bug

1. in reusetab after use draggable feature, when drag started, and right click mouse to popup the context menu, the position of menu is in a remote area like below

2. after click the close button of the tabs, and then reopen a tab, the tab can not create properly

`blazor.webassembly.js?v=0.1.14:1 Uncaught (in promise) Error: System.ArgumentException: There is no tracked object with id '94'. Perhaps the DotNetObjectReference instance was already disposed. (Parameter 'dotNetObjectId')
   at Microsoft.JSInterop.JSRuntime.GetObjectReference(:5001/Int64 dotNetObjectId)
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.BeginInvokeDotNet(:5001/JSRuntime jsRuntime, DotNetInvocationInfo invocationInfo, String argsJson)
    at Object.endInvokeDotNetFromJS (blazor.webassembly.js?v=0.1.14:1:3531)
    at Object.Rt [as endInvokeDotNetFromJS] (blazor.webassembly.js?v=0.1.14:1:60651)
    at Object.St [as invokeJSFromDotNet] (blazor.webassembly.js?v=0.1.14:1:60134)
    at _mono_wasm_invoke_js_blazor (dotnet.6.0.8.5qvbcwublj.js:1:195300)
    at 00971db2:0x1a48f
    at 00971db2:0xce5d
    at 00971db2:0xbd70
    at 00971db2:0xabf00
    at 00971db2:0x6fcc1
    at 00971db2:0x7032e`

### Further technical details
- AntDesign Nuget Package version:0.12.4

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### 🤔 This is a ...

- [ ] New feature
- [x] Bug fix
- [ ] Site / documentation update
- [ ] Demo update
- [ ] Component style update
- [ ] Bundle size optimization
- [ ] Performance optimization
- [x] Refactoring
- [ ] Code style optimization
- [ ] Test Case
- [ ] Branch merge
- [ ] Other (about what?)

### 🔗 Related issue link

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1. Describe the source of requirement, like related issue link.
-->

fixed #2719

### 💡 Background and solution

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1. Describe the problem and the scenario.
2. GIF or snapshot should be provided if includes UI/interactive modification.
3. How to fix the problem, and list final API implementation and usage sample if that is an new feature.
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### 📝 Changelog

<!--
Describe changes from userside, and list all potential break changes or other risks.
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| Language   | Changelog |
| ---------- | --------- |
| 🇺🇸 English |           |
| 🇨🇳 Chinese |           |

### ☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

- [ ] Doc is updated/provided or not needed
- [ ] Demo is updated/provided or not needed
- [ ] Changelog is provided or not needed

Patch:
diff --git a/components/tabs/TabPane.razor b/components/tabs/TabPane.razor
index 093ca8a211..25bf19388d 100644
--- a/components/tabs/TabPane.razor
+++ b/components/tabs/TabPane.razor
@@ -8,18 +8,32 @@
         if (_hasClosed)
             return;
 
-        var ondragoverPreventDefault = _isActive;
+        @if (Parent.Draggable)
+        {
+            var ondragoverPreventDefault = _isActive;
+
+            <div style=" @TabStyles" 
+                @ondragover:preventDefault="@ondragoverPreventDefault" draggable="@Parent.Draggable.ToString()"
+                @ondragstart="@(EventUtil.AsNonRenderingEventHandler<DragEventArgs>(e => Parent.HandleDragStart(e, this)))"
+                 @ondrop="@(()=> Parent.HandleDrop(this))">
+                 @RenderTabInner
+            </div>
+        }
+        else
+        {
+            @RenderTabInner
+        }
+    }
+
+    internal void RenderTabInner(RenderTreeBuilder __builder)
+    {
         var onclickStopPropagation = !_isActive;
 
         <div @key="Key"
              @ref="_tabRef"
              @onclick:stopPropagation="@onclickStopPropagation"
              @onclick="@(() => Parent.HandleTabClick(this))"
-             @ondragover:preventDefault="@ondragoverPreventDefault"
-             @ondragstart="@(EventUtil.AsNonRenderingEventHandler<DragEventArgs>(e => Parent.HandleDragStart(e, this)))"
-             @ondrop="@(()=> Parent.HandleDrop(this))"
-             class="@ClassMapper.Class"
-             draggable="@Parent.Draggable.ToString()"
+             class="@_tabClassMapper.Class"
              id="@TabId"
              ondragover="event.preventDefault();">
             <div @onkeydown="@HandleKeydown"
@@ -63,7 +77,8 @@
 
         <div @key="Key"
              tabindex="@(_isActive ? "0" : "-1")"
-             class="@_tabPaneClassMapper.Class"
+             class="@ClassMapper.Class"
+             style="@Style"
              id="@($"rc-tabs-{Id}-panel-{Key}")"
              role="tabpanel"
              aria-hidden="@(_isActive ? "false" : "true")"
diff --git a/components/tabs/TabPane.razor.cs b/components/tabs/TabPane.razor.cs
index 552c92b187..e5c0f122cf 100644
--- a/components/tabs/TabPane.razor.cs
+++ b/components/tabs/TabPane.razor.cs
@@ -72,7 +72,7 @@ public partial class TabPane : AntDomComponentBase
 
         internal ElementReference TabBtnRef => _tabBtnRef;
 
-        private ClassMapper _tabPaneClassMapper = new();
+        private ClassMapper _tabClassMapper = new();
 
         private const string PrefixCls = "ant-tabs-tab";
         private const string TabPanePrefixCls = "ant-tabs-tabpane";
@@ -86,6 +86,8 @@ public partial class TabPane : AntDomComponentBase
         private bool _hasRendered;
         private int _tabIndex;
 
+        private string TabStyles => $"margin-right:{(Parent.Type == TabType.Line ? "24px;" : "2px;")}; order:{TabIndex};";
+
         protected override void OnInitialized()
         {
             base.OnInitialized();
@@ -117,13 +119,13 @@ public override async Task SetParametersAsync(ParameterView parameters)
 
         private void SetClass()
         {
-            ClassMapper
+            _tabClassMapper
                 .Add(PrefixCls)
                 .If($"{PrefixCls}-active", () => _isActive)
                 .If($"{PrefixCls}-with-remove", () => Closable)
                 .If($"{PrefixCls}-disabled", () => Disabled);
 
-            _tabPaneClassMapper
+            ClassMapper
                 .Add(TabPanePrefixCls)
                 .If($"{TabPanePrefixCls}-active", () => _isActive)
                 .If($"{TabPanePrefixCls}-hidden", () => !_isActive)
diff --git a/components/tabs/Tabs.razor b/components/tabs/Tabs.razor
index f3f6387ddc..ac3e48c029 100644
--- a/components/tabs/Tabs.razor
+++ b/components/tabs/Tabs.razor
@@ -33,7 +33,7 @@
 
                 <div class="@_tabsNavWarpPingClassMapper.Class" @ref="@_navWarpRef" id="@(Id)-nav-warpper">
                     <div class="ant-tabs-nav-list" style="@_navListStyle" @ref="@_navListRef" id="@(Id)-nav-list">
-                        @foreach (var tab in _tabs.OrderBy(x => x.TabIndex))
+                        @foreach (var tab in _tabs)
                         {
                             @tab.RenderTab
                         }
@@ -90,13 +90,14 @@
         </div>
 
     }    
+
     internal void RenderTabPanels(RenderTreeBuilder __builder)
     {             
         <div class="ant-tabs-content-holder ">
             <div class="@_contentClassMapper.Class">
                 @foreach (var tab in _tabs)
                 {
-                    @tab.RenderPane
+                    __builder.AddContent(tab.GetHashCode(), tab.RenderPane);
                 }
             </div>
         </div>     
diff --git a/components/tabs/Tabs.razor.cs b/components/tabs/Tabs.razor.cs
index 601bb2a4c9..14123769f2 100644
--- a/components/tabs/Tabs.razor.cs
+++ b/components/tabs/Tabs.razor.cs
@@ -320,6 +320,11 @@ internal void AddTabPane(TabPane tabPane)
 
         internal void Complete()
         {
+            if (_afterFirstRender)
+            {
+                return;
+            }
+
             if (!string.IsNullOrWhiteSpace(ActiveKey))
             {
                 var activedPane = _tabs.Find(x => x.Key == ActiveKey);
@@ -372,15 +377,20 @@ internal void RemovePane(TabPane tab)
             if (IsDisposed)
                 return;
 
+            // reorder tabs
+            _tabs.OrderBy(x => x.TabIndex).ForEach((x, i) => x.SetIndex(i));
+
             // if it is active, need to activiate the previous tab.
             if (ActiveKey == tab.Key)
             {
                 Previous();
             }
 
-            _tabs.Remove(tab);
+            _shouldRender = true;
+            _needUpdateScrollListPosition = tab.TabIndex != _tabs.Count - 1; // only update scroll list position when active tab is not the last one
 
-            _needUpdateScrollListPosition = true;
+            _tabs.Remove(tab);
+            StateHasChanged();
         }
 
         internal async Task HandleTabClick(TabPane tabPane)
@@ -398,21 +408,27 @@ internal async Task HandleTabClick(TabPane tabPane)
 
         internal void HandleKeydown(KeyboardEventArgs e, TabPane tabPane)
         {
-            var tabIndex = _tabs.FindIndex(p => p.Key == tabPane.Key);
             switch (e.Code)
             {
-                case "Enter" or "NumpadEnter": NavigateToTab(tabPane); break;
-                case "ArrowLeft": NavigateToTab(_tabs[Math.Max(0, tabIndex - 1)]); break;
-                case "ArrowRight": NavigateToTab(_tabs[Math.Min(_tabs.Count - 1, tabIndex + 1)]); break;
-                case "ArrowUp": NavigateToTab(_tabs[0]); break;
-                case "ArrowDown": NavigateToTab(_tabs[^1]); break;
+                case "Enter" or "NumpadEnter": GoTo(tabPane.TabIndex); break;
+                case "ArrowLeft": Previous(); break;
+                case "ArrowRight": Next(); break;
+                case "ArrowUp": GoTo(0); break;
+                case "ArrowDown": GoTo(_tabs.Count - 1); break;
                 default: return;
             }
         }
 
-        private void NavigateToTab(TabPane tabPane)
+        /// <summary>
+        /// Activate the tab with the specified index
+        /// </summary>
+        /// <param name="tabIndex"></param>
+        [PublicApi("1.0.0")]
+        public void GoTo(int tabIndex)
         {
-            ActivatePane(tabPane.Key);
+            var activeIndex = Math.Min(_tabs.Count - 1, Math.Max(0, tabIndex));
+            var tab = _tabs.Find(x => x.TabIndex == activeIndex);
+            ActivatePane(tab.Key);
         }
 
         /// <summary>
@@ -421,8 +437,7 @@ private void NavigateToTab(TabPane tabPane)
         [PublicApi("1.0.0")]
         public void Next()
         {
-            var currentIndex = _tabs.FindIndex(p => p.Key == ActiveKey);
-            NavigateToTab(_tabs[Math.Min(_tabs.Count - 1, currentIndex + 1)]);
+            GoTo(_activeTab.TabIndex + 1);
         }
 
         /// <summary>
@@ -431,8 +446,7 @@ public void Next()
         [PublicApi("1.0.0")]
         public void Previous()
         {
-            var currentIndex = _tabs.FindIndex(p => p.Key == ActiveKey);
-            NavigateToTab(_tabs[Math.Max(0, currentIndex - 1)]);
+            GoTo(_activeTab.TabIndex - 1);
         }
 
         /// <summary>
@@ -445,7 +459,6 @@ public void ActivatePane(string key)
             if (_tabs.Count == 0)
                 return;
 
-            var tabIndex = _tabs.FindIndex(p => p.Key == key);
             var tab = _tabs.Find(p => p.Key == key);
 
             if (tab == null)
@@ -766,8 +779,8 @@ internal void HandleDrop(TabPane tab)
         {
             if (Draggable && _draggingTab != null)
             {
-                var oldIndex = _tabs.IndexOf(_draggingTab);
-                var newIndex = _tabs.IndexOf(tab);
+                var oldIndex = _draggingTab.TabIndex;
+                var newIndex = tab.TabIndex;
 
                 if (oldIndex == newIndex)
                 {
@@ -776,7 +789,12 @@ internal void HandleDrop(TabPane tab)
 
                 tab.ExchangeWith(_draggingTab);
 
-                var diffTabs = newIndex < oldIndex ? _tabs.GetRange(newIndex, oldIndex - newIndex) : _tabs.GetRange(oldIndex, newIndex - oldIndex);
+                /* Exchange example:
+                 * 1,2,3,4,5,6 -> 1,5,3,4,2,6
+                 *   ^     ^
+                 */
+                var diffTabs = newIndex < oldIndex ? _tabs.Where(x => x.TabIndex == newIndex && x.TabIndex < oldIndex).ToList()
+                    : _tabs.Where(x => x.TabIndex > oldIndex && x.TabIndex == newIndex).ToList();
 
                 for (var i = diffTabs.Count - 2; i >= 0; i--)
                 {
@@ -787,8 +805,7 @@ internal void HandleDrop(TabPane tab)
                 _shouldRender = true;
                 _renderedActivePane = null;
                 _needUpdateScrollListPosition = true;
-
-                ActivatePane(_activeKey);
+                StateHasChanged();
             }
         }
 
diff --git a/site/AntDesign.Docs/Demos/Components/Tabs/demo/ContextMenu.razor b/site/AntDesign.Docs/Demos/Components/Tabs/demo/ContextMenu.razor
index 6180c4e312..94ee8af2df 100644
--- a/site/AntDesign.Docs/Demos/Components/Tabs/demo/ContextMenu.razor
+++ b/site/AntDesign.Docs/Demos/Components/Tabs/demo/ContextMenu.razor
@@ -1,4 +1,4 @@
-﻿<Tabs Type="@TabType.EditableCard" HideAdd>
+﻿<Tabs Type="@TabType.EditableCard" HideAdd Draggable>
     @foreach (var pane in panes)
     {
         <TabPane @key="@pane.Key" Key="@pane.Key" Tab="@pane.Title" Closable="@pane.Closable">
diff --git a/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.en-US.md b/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.en-US.md
index 508317a917..6096e1242a 100644
--- a/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.en-US.md
+++ b/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.en-US.md
@@ -16,6 +16,17 @@ Ant Design has 3 types of Tabs for different situations.
 - Normal Tabs: for EventCallbackal aspects of a page.
 - [RadioButton](/components/radio/#components-radio-demo-radiobutton): for secondary tabs.
 
+
+## Supports keyboard navigation
+
+Keyboard navigation is available when the focus is on the tab.
+
+- <kbd>ArrowLeft</kbd>: navigate to previous tab
+- <kbd>ArrowRight</kbd>: navigate to next tab
+- <kbd>ArrowUp</kbd>: navigate to first tab
+- <kbd>ArrowDown</kbd>: navigate to last tab
+- <kbd>Enter</kbd>: navigate to currently focused tab
+
 ## API
 
 ### Tabs
diff --git a/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.zh-CN.md b/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.zh-CN.md
index 13d540d2a1..433006e342 100644
--- a/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.zh-CN.md
+++ b/site/AntDesign.Docs/Demos/Components/Tabs/doc/index.zh-CN.md
@@ -19,6 +19,16 @@ Ant Design 依次提供了三级选项卡，分别用于不同的场景。
 - 既可用于容器顶部，也可用于容器内部，是最通用的 Tabs。
 - [RadioButton](/components/radio/#components-radio-demo-radiobutton) 可作为更次级的页签来使用。
 
+## 支持键盘导航
+
+当焦点在标签上时，可用键盘导航
+
+- <kbd>左键</kbd>：导航到前一个选项卡
+- <kbd>右键</kbd>：导航到后一个选项卡
+- <kbd>上键</kbd>：导航到第一个选项卡
+- <kbd>下键</kbd>：导航到最后一个选项卡
+- <kbd>回车键</kbd>：导航到当前焦点选项卡
+
 ## API
 
 ### Tabs


Test patch:
diff --git a/tests/AntDesign.Tests/Card/Card.Render.Tests.razor b/tests/AntDesign.Tests/Card/Card.Render.Tests.razor
index d5a4e8880c..6cb9e8a314 100644
--- a/tests/AntDesign.Tests/Card/Card.Render.Tests.razor
+++ b/tests/AntDesign.Tests/Card/Card.Render.Tests.razor
@@ -60,12 +60,12 @@
       <div role=""tablist"" class=""ant-tabs-nav"">
         <div class=""ant-tabs-nav-wrap"" id:ignore >
           <div class=""ant-tabs-nav-list"" id:ignore >
-            <div     class=""ant-tabs-tab ant-tabs-tab-active ant-tabs-tab-with-remove"" draggable=""False"" id:ignore ondragover=""event.preventDefault();"" >
+            <div     class=""ant-tabs-tab ant-tabs-tab-active ant-tabs-tab-with-remove"" id:ignore ondragover=""event.preventDefault();"" >
               <div  role=""tab"" aria-selected=""true"" class=""ant-tabs-tab-btn"" aria-controls:ignore tabindex=""0"" >
                 Tab 1
               </div>
             </div>
-            <div     class=""ant-tabs-tab ant-tabs-tab-with-remove"" draggable=""False"" id:ignore ondragover=""event.preventDefault();"" >
+            <div     class=""ant-tabs-tab ant-tabs-tab-with-remove"" id:ignore ondragover=""event.preventDefault();"" >
               <div  role=""tab"" aria-selected=""false"" class=""ant-tabs-tab-btn"" aria-controls:ignore tabindex=""0"" >
                 Tab 2
               </div>