feat(Dropdown): add IsAsync parameter

src/BootstrapBlazor.Server/Components/Samples/Dropdowns.razor

@@ -48,6 +48,10 @@
     </div>
 </DemoBlock>
 
+<DemoBlock Title="@Localizer["IsAsyncTitle"]" Introduction='@Localizer["IsAsyncIntro"]' Name="IsAsync">
+    <Dropdown TValue="string" Items="Items" ShowSplit="true" IsAsync="true" OnClickWithoutRender="OnIsAsyncClick"></Dropdown>
+</DemoBlock>
+
 <DemoBlock Title="@Localizer["SizeTitle"]" Introduction="@Localizer["SizeIntro"]" Name="Size">
     <div class="row g-3">
         <div class="col-6 col-sm-4 col-md-3 col-xl-auto">

src/BootstrapBlazor.Server/Components/Samples/Dropdowns.razor.cs

@@ -10,6 +10,9 @@ namespace BootstrapBlazor.Server.Components.Samples;
 /// </summary>
 public sealed partial class Dropdowns
 {
+    [Inject, NotNull]
+    private ToastService? ToastService { get; set; }
+
     [NotNull]
     private ConsoleLogger? Logger { get; set; }
 
@@ -142,6 +145,15 @@ private async Task OnCascadeBindSelectClick(SelectedItem item)
         StateHasChanged();
     }
 
+    private async Task OnIsAsyncClick()
+    {
+        // 模拟异步延时
+        await Task.Delay(1000);
+
+        // 提示任务完成
+        await ToastService.Success("Dropdown IsAsync", "Job done!");
+    }
+
     /// <summary>
     /// GetAttributes
     /// </summary>
@@ -220,6 +232,14 @@ private AttributeItem[] GetAttributes() =>
             DefaultValue = " false "
         },
         new()
+        {
+            Name = "IsAsync",
+            Description = Localizer["AttributeIsAsync"],
+            Type = "boolean",
+            ValueList = " — ",
+            DefaultValue = "false"
+        },
+        new()
         {
             Name = "Size",
             Description = Localizer["AttributeSize"],

src/BootstrapBlazor.Server/Locales/en-US.json

@@ -1763,6 +1763,8 @@
     "SplitIntro": "You can create a split drop-down menu with tags similar to a single button drop-down menu, and add ShowSplit='true' when you use a split component. Insert this symbol as a drop-down The options are handled at appropriate intervals (distance).",
     "SizeTitle": "Size definition",
     "SizeIntro": "The drop-down menu has a variety of size specifications to choose from <code>Size</code> attributes, including preset and split button drop-down menus.",
+    "IsAsyncTitle": "Asynchronous request button",
+    "IsAsyncIntro": "By setting whether the <code>isAsync</code> property button is <b>asynchronous request button by setting whether the is</b> <code>false</code> by default",
     "DirectionTitle": "Expanding direction",
     "DirectionIntro": "Add the style of <code>Direction='Direction.Dropup'</code> to make the drop-down menu expand upward.",
     "AlignmentTitle": "Menu alignment",
@@ -1788,6 +1790,7 @@
     "AttributeMenuItem": "Menu item rendering label",
     "AttributeResponsive": "Menu alignment",
     "AttributeShowSplit": "Split button drop-down menu",
+    "AttributeIsAsync": "whether it is an asynchronous button",
     "AttributeSize": "Size",
     "AttributeTagName": "Label",
     "AttributeButtonTemplate": "The template of button",
@@ -2226,7 +2229,7 @@
     "Block8Title": "Secondary encapsulation button",
     "Block8Intro": "The button display text is set by setting the <code>Text</code> property of the <code>winButton</code> component, and the click button is the text on the right that shows the clicked button",
     "Block9Title": "Asynchronous request button",
-    "Block9Intro": "By setting whether the <code>isAsync</code> property button is <b>asynchronous request button by setting whether the is</b> <code>false</code> by default",
+    "Block9Intro": "By setting whether the <code>isAsync</code> property button is <b>asynchronous request button by setting whether the is</b> <code>false</code> by default. <b>Note</b> This will only take effect when <code>ShowSplit=\"true\"</code> is set",
     "ButtonAsyncDescription": "When the button is an asynchronous request button, the button is changed to disabled, and the <code>loading</code> small icon is displayed, returning to normal after the asynchronous request ends, in this case, after clicking the <b>asynchronous button</b>, the request load animation is displayed and returns to normal after 5 seconds",
     "EventDesc1": "This event is triggered when the button is clicked",
     "EventDesc2": "This event is triggered when the button is clicked and the current component is not refreshed for performance improvement",

src/BootstrapBlazor.Server/Locales/zh-CN.json

@@ -1761,6 +1761,8 @@
     "ColorIntro": "提供各种颜色的警告信息框 引用 <code>Color='Color.Primary'</code> 等颜色及样式类来定义下拉菜单的外在表现",
     "SplitTitle": "分裂式按钮下拉菜单",
     "SplitIntro": "可用与单个按钮下拉菜单近似的标记创建分裂式下拉菜单，添加 <code>ShowSplit='true'</code> 插入此符号为下拉选项作适当的间隔（距）处理。",
+    "IsAsyncTitle": "异步按钮",
+    "IsAsyncIntro": "通过设置 <code>IsAsync</code> 属性按钮是否为 <b>异步请求按钮</b>，默认为 <code>false</code>，<b>注意</b> 需要设置 <code>ShowSplit=\"true\"</code> 时才生效",
     "SizeTitle": "尺寸大小定义",
     "SizeIntro": "下拉菜单有各种大小规格可以选用 <code>Size</code> 属性，包括预设及分裂式按钮下拉菜单。",
     "DirectionTitle": "展开方向",
@@ -1788,6 +1790,7 @@
     "AttributeMenuItem": "菜单项渲染标签",
     "AttributeResponsive": "菜单对齐",
     "AttributeShowSplit": "分裂式按钮下拉菜单",
+    "AttributeIsAsync": "是否为异步按钮",
     "AttributeSize": "尺寸",
     "AttributeTagName": "标签",
     "AttributeButtonTemplate": "按钮模板",

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.3.1-beta09</Version>
+    <Version>9.3.1-beta10</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/BootstrapBlazor/Components/Button/Button.razor.cs

@@ -18,26 +18,11 @@ public partial class Button : ButtonBase
     [Parameter]
     public bool IsAutoFocus { get; set; }
 
-    /// <summary>
-    /// 按钮点击回调方法，内置支持 IsAsync 开关
-    /// </summary>
-    protected EventCallback<MouseEventArgs> OnClickButton { get; set; }
-
     /// <summary>
     /// 获得/设置 html button 实例
     /// </summary>
     protected ElementReference ButtonElement { get; set; }
 
-    /// <summary>
-    /// OnInitialized 方法
-    /// </summary>
-    protected override void OnInitialized()
-    {
-        base.OnInitialized();
-
-        SetClickHandler();
-    }
-
     /// <summary>
     /// OnAfterRenderAsync 方法
     /// </summary>
@@ -57,36 +42,33 @@ protected override async Task OnAfterRenderAsync(bool firstRender)
     }
 
     /// <summary>
-    /// 设置 OnClickButton 方法 
+    /// OnClickButton 方法 
     /// </summary>
-    protected virtual void SetClickHandler()
+    protected virtual async Task OnClickButton()
     {
-        OnClickButton = EventCallback.Factory.Create<MouseEventArgs>(this, async () =>
+        if (IsAsync && ButtonType == ButtonType.Button)
         {
-            if (IsAsync && ButtonType == ButtonType.Button)
-            {
-                IsAsyncLoading = true;
-                ButtonIcon = LoadingIcon;
-                IsDisabled = true;
-            }
+            IsAsyncLoading = true;
+            ButtonIcon = LoadingIcon;
+            IsDisabled = true;
+        }
 
-            if (IsAsync)
-            {
-                await Task.Run(() => InvokeAsync(HandlerClick));
-            }
-            else
-            {
-                await HandlerClick();
-            }
+        if (IsAsync)
+        {
+            await Task.Run(() => InvokeAsync(HandlerClick));
+        }
+        else
+        {
+            await HandlerClick();
+        }
 
-            // 恢复按钮
-            if (IsAsync && ButtonType == ButtonType.Button)
-            {
-                ButtonIcon = Icon;
-                IsDisabled = IsKeepDisabled;
-                IsAsyncLoading = false;
-            }
-        });
+        // 恢复按钮
+        if (IsAsync && ButtonType == ButtonType.Button)
+        {
+            ButtonIcon = Icon;
+            IsDisabled = IsKeepDisabled;
+            IsAsyncLoading = false;
+        }
     }
 
     /// <summary>
@@ -107,7 +89,7 @@ protected virtual async Task HandlerClick()
             {
                 IsNotRender = true;
             }
-            await OnClickWithoutRender.Invoke();
+            await OnClickWithoutRender();
         }
         if (OnClick.HasDelegate)
         {

src/BootstrapBlazor/Components/Button/CountButton.cs

@@ -3,8 +3,6 @@
 // See the LICENSE file in the project root for more information.
 // Maintainer: Argo Zhang([email protected]) Website: https://www.blazor.zone
 
-using Microsoft.AspNetCore.Components.Web;
-
 namespace BootstrapBlazor.Components;
 
 /// <summary>
@@ -33,21 +31,18 @@ public class CountButton : Button
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
-    protected override void SetClickHandler()
+    protected override async Task OnClickButton()
     {
-        OnClickButton = EventCallback.Factory.Create<MouseEventArgs>(this, async () =>
-        {
-            IsAsyncLoading = true;
-            ButtonIcon = LoadingIcon;
-            IsDisabled = true;
+        IsAsyncLoading = true;
+        ButtonIcon = LoadingIcon;
+        IsDisabled = true;
 
-            await Task.Run(() => InvokeAsync(HandlerClick));
-            await UpdateCount();
+        await Task.Run(() => InvokeAsync(HandlerClick));
+        await UpdateCount();
 
-            IsDisabled = false;
-            ButtonIcon = Icon;
-            IsAsyncLoading = false;
-        });
+        IsDisabled = false;
+        ButtonIcon = Icon;
+        IsAsyncLoading = false;
     }
 
     /// <summary>

src/BootstrapBlazor/Components/Dropdown/Dropdown.razor

@@ -5,14 +5,18 @@
 
 @if (IsShowLabel)
 {
-    <BootstrapLabel for="@Id" ShowLabelTooltip="ShowLabelTooltip" Value="@DisplayText" />
+    <BootstrapLabel for="@Id" ShowLabelTooltip="ShowLabelTooltip" Value="@DisplayText"></BootstrapLabel>
 }
 <div @attributes="@AdditionalAttributes" id="@Id" class="@DirectionClassName">
     <DynamicElement TagName="button" type="button" class="@ButtonClassName" data-bs-toggle="@DropdownToggle" disabled="@Disabled"
                     TriggerClick="ShowSplit" OnClick="OnClickButton">
         @if (ButtonTemplate == null)
         {
-            @ButtonText
+            @if (!string.IsNullOrEmpty(_buttonIcon))
+            {
+                <i class="@_buttonIcon"></i>
+            }
+            <span>@ButtonText</span>
         }
         else
         {