feat(SelectTable): add IsClearable parameter

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

@@ -6,7 +6,10 @@
 <h4>@Localizer["Intro"]</h4>
 
 <DemoBlock Title="@Localizer["NormalTitle"]" Introduction="@Localizer["NormalIntro"]" Name="Normal">
-    <SelectTable TItem="Foo" @bind-Value="@_foo" OnQueryAsync="OnQueryAsync" GetTextCallback="@GetTextCallback" TableMinWidth="300">
+    <section ignore>
+        @((MarkupString)Localizer["NormalDesc"].Value)
+    </section>
+    <SelectTable TItem="Foo" @bind-Value="@_foo" OnQueryAsync="OnQueryAsync" GetTextCallback="@GetTextCallback" TableMinWidth="300" IsClearable>
         <TableColumns>
             <TableColumn @bind-Field="@context.Name"></TableColumn>
             <TableColumn @bind-Field="@context.Address"></TableColumn>

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

@@ -6567,6 +6567,7 @@
     "Intro": "The dropdown box is a table used to display the selection requirements for complex types",
     "NormalTitle": "Basic usage",
     "NormalIntro": "Suitable for candidates with a relatively large amount of information, presenting information using <code>Table</code>",
+    "NormalDesc": "You can use <code>IsClearable</code> to control whether to display the clear button. The default value is <code>false</code>",
     "ColorTitle": "Color",
     "ColorIntro": "Change component border color by setting <code>Color</code>",
     "IsDisabledTitle": "Disabled",

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

@@ -6567,6 +6567,7 @@
     "Intro": "下拉框为表格用于展示复杂类型的选择需求",
     "NormalTitle": "基本功能",
     "NormalIntro": "适用于候选项信息量比较大，用 <code>Table</code> 呈现信息量",
+    "NormalDesc": "可通过 <code>IsClearable</code> 控制是否显示清除小按钮，默认值 <code>false</code>",
     "ColorTitle": "颜色",
     "ColorIntro": "通过设置 <code>Color</code> 改变组件边框颜色",
     "IsDisabledTitle": "禁用",

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.2.6</Version>
+    <Version>9.2.7-beta01</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/BootstrapBlazor/Components/Select/Select.razor.scss

@@ -147,25 +147,27 @@
     transform: rotate(0);
 }
 
-.select .clear-icon {
-    position: absolute;
-    height: 100%;
-    width: var(--bb-select-append-width);
-    right: 0;
-    top: 0;
-    color: var(--bb-select-append-color);
-    align-items: center;
-    justify-content: center;
-    cursor: pointer;
-    display: none;
-}
+.select {
+    .clear-icon {
+        position: absolute;
+        height: 100%;
+        width: var(--bb-select-append-width);
+        right: 0;
+        top: 0;
+        color: var(--bb-select-append-color);
+        align-items: center;
+        justify-content: center;
+        cursor: pointer;
+        display: none;
+    }
 
-.select:hover .clear-icon {
-    display: flex;
-}
+    &:hover .clear-icon {
+        display: flex;
+    }
 
-.select.cls:hover .form-select-append {
-    display: none;
+    &.cls:hover .form-select-append {
+        display: none;
+    }
 }
 
 .form-select.is-valid:focus,

src/BootstrapBlazor/Components/Select/SelectTable.razor

@@ -31,6 +31,10 @@
             <span class="@AppendClassString"><i class="@DropdownIcon"></i></span>
         }
     </div>
+    @if (GetClearable())
+    {
+        <span class="@ClearClassString" @onclick="OnClearValue"><i class="@ClearIcon"></i></span>
+    }
     <CascadingValue Value="this" IsFixed="true">
         @TableColumns?.Invoke(new TItem())
     </CascadingValue>

src/BootstrapBlazor/Components/Select/SelectTable.razor.cs

@@ -61,6 +61,12 @@ namespace BootstrapBlazor.Components;
     [NotNull]
     public string? DropdownIcon { get; set; }
 
+    /// <summary>
+    /// 获得/设置 是否可清除 默认 false
+    /// </summary>
+    [Parameter]
+    public bool IsClearable { get; set; }
+
     /// <summary>
     /// 获得/设置 IIconTheme 服务实例
     /// </summary>
@@ -78,6 +84,7 @@ namespace BootstrapBlazor.Components;
     /// </summary>
     private string? ClassName => CssBuilder.Default("select select-table dropdown")
         .AddClass("disabled", IsDisabled)
+        .AddClass("cls", IsClearable)
         .AddClassFromAttributes(AdditionalAttributes)
         .Build();
 
@@ -101,6 +108,15 @@ namespace BootstrapBlazor.Components;
         .AddClass($"text-danger", IsValid.HasValue && !IsValid.Value)
         .Build();
 
+    private bool GetClearable() => IsClearable && !IsDisabled;
+
+    /// <summary>
+    /// 获得/设置 右侧清除图标 默认 fa-solid fa-angle-up
+    /// </summary>
+    [Parameter]
+    [NotNull]
+    public string? ClearIcon { get; set; }
+
     /// <summary>
     /// 获得 PlaceHolder 属性
     /// </summary>
@@ -174,6 +190,12 @@ namespace BootstrapBlazor.Components;
     [Parameter]
     public bool AutoGenerateColumns { get; set; }
 
+    /// <summary>
+    /// 获得/设置 清除文本内容 OnClear 回调方法 默认 null
+    /// </summary>
+    [Parameter]
+    public Func<Task>? OnClearAsync { get; set; }
+
     [Inject]
     [NotNull]
     private IStringLocalizer<Select<TItem>>? Localizer { get; set; }
@@ -191,6 +213,12 @@ namespace BootstrapBlazor.Components;
 
     private string GetStyleString => $"height: {Height}px;";
 
+    private string? ClearClassString => CssBuilder.Default("clear-icon")
+        .AddClass($"text-{Color.ToDescriptionString()}", Color != Color.None)
+        .AddClass($"text-success", IsValid.HasValue && IsValid.Value)
+        .AddClass($"text-danger", IsValid.HasValue && !IsValid.Value)
+        .Build();
+
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
@@ -220,6 +248,7 @@ protected override void OnParametersSet()
 
         PlaceHolder ??= Localizer[nameof(PlaceHolder)];
         DropdownIcon ??= IconTheme.GetIconByKey(ComponentIcons.SelectDropdownIcon);
+        ClearIcon ??= IconTheme.GetIconByKey(ComponentIcons.SelectClearIcon);
     }
 
     /// <summary>
@@ -239,4 +268,14 @@ private async Task OnClickRowCallback(TItem item)
         CurrentValue = item;
         await InvokeVoidAsync("close", Id);
     }
+
+    private async Task OnClearValue()
+    {
+        if (OnClearAsync != null)
+        {
+            await OnClearAsync();
+        }
+
+        await OnClickRowCallback(default!);
+    }
 }

test/UnitTest/Components/SelectTableTest.cs

@@ -36,6 +36,44 @@ public void Items_Ok()
         });
     }
 
+    [Fact]
+    public async Task IsClearable_Ok()
+    {
+        var localizer = Context.Services.GetRequiredService<IStringLocalizer<Foo>>();
+        var items = Foo.GenerateFoo(localizer, 4);
+        var cut = Context.RenderComponent<BootstrapBlazorRoot>(pb =>
+        {
+            pb.AddChildContent<SelectTable<Foo>>(pb =>
+            {
+                pb.Add(a => a.OnQueryAsync, options => OnFilterQueryAsync(options, items));
+                pb.Add(a => a.GetTextCallback, foo => foo.Name);
+            });
+        });
+        var table = cut.FindComponent<SelectTable<Foo>>();
+        Assert.DoesNotContain("clear-icon", table.Markup);
+
+        var isClear = false;
+        table.SetParametersAndRender(pb =>
+        {
+            pb.Add(a => a.IsClearable, true);
+            pb.Add(a => a.Value, items[0]);
+            pb.Add(a => a.OnClearAsync, () =>
+            {
+                isClear = true;
+                return Task.CompletedTask;
+            });
+        });
+        Assert.Contains("clear-icon", table.Markup);
+        var input = table.Find(".form-select");
+        Assert.Equal("张三 0001", input.GetAttribute("value"));
+
+        var span = table.Find(".clear-icon");
+        await table.InvokeAsync(() => span.Click());
+        input = table.Find(".form-select");
+        Assert.Null(input.GetAttribute("value"));
+        Assert.True(isClear);
+    }
+
     [Fact]
     public void TableMinWidth_Ok()
     {
@@ -65,9 +103,13 @@ public void Color_Ok()
                 pb.Add(a => a.Color, Color.Danger);
                 pb.Add(a => a.GetTextCallback, foo => foo.Name);
                 pb.Add(a => a.OnQueryAsync, options => OnFilterQueryAsync(options, items));
+                pb.Add(a => a.IsClearable, true);
             });
         });
         cut.Contains("border-danger");
+
+        var span = cut.Find(".clear-icon");
+        Assert.True(span.ClassList.Contains("text-danger"));
     }
 
     [Fact]
@@ -271,6 +313,7 @@ public async Task Validate_Ok()
             builder.Add(a => a.Model, model);
             builder.AddChildContent<SelectTable<Foo>>(pb =>
             {
+                pb.Add(a => a.IsClearable, true);
                 pb.Add(a => a.Value, model.Foo);
                 pb.Add(a => a.ValueExpression, Utility.GenerateValueExpression(model, "Foo", typeof(Foo)));
                 pb.Add(a => a.OnValueChanged, v =>
@@ -302,6 +345,9 @@ await cut.InvokeAsync(() =>
         });
         Assert.True(valid);
 
+        var span = cut.Find(".clear-icon");
+        Assert.True(span.ClassList.Contains("text-success"));
+
         model.Foo = null;
         var table = cut.FindComponent<SelectTable<Foo>>();
         table.SetParametersAndRender();
@@ -311,6 +357,9 @@ await cut.InvokeAsync(() =>
             form.Submit();
         });
         Assert.True(invalid);
+
+        span = cut.Find(".clear-icon");
+        Assert.True(span.ClassList.Contains("text-danger"));
     }
 
     [Fact]