fix(AutoComplete): auto filter the dropdown items when Value is not null (#5823)

* refactor: 增加 Value 初始化时过滤候选项功能

* chore: bump version 9.5.6-beta05

* test: 更新单元测试

Author: ArgoZhang

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.5.6-beta04</Version>
+    <Version>9.5.6-beta05</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/BootstrapBlazor/Components/AutoComplete/AutoComplete.razor.cs

@@ -93,6 +93,17 @@ protected override void OnInitialized()
         base.OnInitialized();
 
         SkipRegisterEnterEscJSInvoke = true;
+
+        Items ??= [];
+
+        if (!string.IsNullOrEmpty(Value))
+        {
+            _filterItems = GetFilterItemsByValue(Value);
+            if (DisplayCount != null)
+            {
+                _filterItems = [.. _filterItems.Take(DisplayCount.Value)];
+            }
+        }
     }
 
     /// <summary>
@@ -106,8 +117,6 @@ protected override void OnParametersSet()
         PlaceHolder ??= Localizer[nameof(PlaceHolder)];
         Icon ??= IconTheme.GetIconByKey(ComponentIcons.AutoCompleteIcon);
         LoadingIcon ??= IconTheme.GetIconByKey(ComponentIcons.LoadingIcon);
-
-        Items ??= [];
     }
 
     private bool _render = true;
@@ -151,11 +160,7 @@ public override async Task TriggerFilter(string val)
         }
         else
         {
-            var comparison = IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
-            var items = IsLikeMatch
-                ? Items.Where(s => s.Contains(val, comparison))
-                : Items.Where(s => s.StartsWith(val, comparison));
-            _filterItems = [.. items];
+            _filterItems = GetFilterItemsByValue(val);
         }
 
         if (DisplayCount != null)
@@ -166,6 +171,15 @@ public override async Task TriggerFilter(string val)
         await TriggerChange(val);
     }
 
+    private List<string> GetFilterItemsByValue(string val)
+    {
+        var comparison = IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
+        var items = IsLikeMatch
+            ? Items.Where(s => s.Contains(val, comparison))
+            : Items.Where(s => s.StartsWith(val, comparison));
+        return [.. items];
+    }
+
     /// <summary>
     /// TriggerChange method
     /// </summary>

test/UnitTest/Components/AutoCompleteTest.cs

@@ -40,6 +40,23 @@ public async Task Items_Ok()
         Assert.Equal("Test", cut.Instance.Value);
     }
 
+    [Fact]
+    public void Value_Ok()
+    {
+        var cut = Context.RenderComponent<AutoComplete>(pb =>
+        {
+            pb.Add(a => a.Items, new List<string>() { "test1", "test12", "test123", "test1234" });
+            pb.Add(a => a.Value, "test12");
+            pb.Add(a => a.DisplayCount, 2);
+        });
+        var menus = cut.FindAll(".dropdown-item");
+
+        // 由于 Value = test12
+        // 并且设置了 DisplayCount = 2
+        // 候选项只有 2 个
+        Assert.Equal(2, menus.Count);
+    }
+
     [Fact]
     public void Debounce_Ok()
     {