refactor(BootstrapBlazorRoot): support nested usage (#5552)

* refactor: 兼容 Root 多层嵌套

* test: 更新单元测试

* doc: 更新注释

* chore: bump version 9.4.7

Author: ArgoZhang

src/BootstrapBlazor/BootstrapBlazor.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.4.7-beta04</Version>
+    <Version>9.4.7</Version>
   </PropertyGroup>
 
   <ItemGroup>

src/BootstrapBlazor/Services/BootstrapBlazorRootRegisterService.cs

@@ -14,7 +14,7 @@ public class BootstrapBlazorRootRegisterService
     private readonly Dictionary<object, List<BootstrapBlazorRootContent>> _providersByIdentifier = [];
 
     /// <summary>
-    /// add provider
+    /// Add provider
     /// </summary>
     /// <param name="identifier"></param>
     /// <param name="provider"></param>
@@ -30,7 +30,7 @@ public void AddProvider(object identifier, BootstrapBlazorRootContent provider)
     }
 
     /// <summary>
-    /// remove provider
+    /// Remove provider
     /// </summary>
     /// <param name="identifier"></param>
     /// <param name="provider"></param>
@@ -58,7 +58,7 @@ public void RemoveProvider(object identifier, BootstrapBlazorRootContent provide
     }
 
     /// <summary>
-    /// get all providers by identifier
+    /// Get all providers by identifier
     /// </summary>
     /// <param name="identifier"></param>
     /// <returns></returns>
@@ -69,30 +69,27 @@ public List<BootstrapBlazorRootContent> GetProviders(object identifier)
     }
 
     /// <summary>
-    /// subscribe
+    /// Subscribe
     /// </summary>
     /// <param name="identifier"></param>
     /// <param name="subscriber"></param>
     public void Subscribe(object identifier, BootstrapBlazorRootOutlet subscriber)
     {
         if (_subscribersByIdentifier.ContainsKey(identifier))
         {
-            throw new InvalidOperationException($"There is already a subscriber to the content with the given root ID '{identifier}'.");
+            return;
         }
 
         _subscribersByIdentifier.Add(identifier, subscriber);
     }
 
     /// <summary>
-    /// 取消订阅
+    /// Unsubscribe
     /// </summary>
     /// <param name="identifier"></param>
     public void Unsubscribe(object identifier)
     {
-        if (!_subscribersByIdentifier.Remove(identifier))
-        {
-            throw new InvalidOperationException($"The subscriber with the given root ID '{identifier}' is already unsubscribed.");
-        }
+        _subscribersByIdentifier.Remove(identifier);
     }
 
     /// <summary>

test/UnitTest/Services/BootstrapBlazorRootRegisterServiceTest.cs

@@ -28,11 +28,7 @@ public void Subscribe_Ok()
         var service = new BootstrapBlazorRootRegisterService();
         var identifier = new object();
         service.Subscribe(identifier, new BootstrapBlazorRootOutlet());
-        var exception = Assert.ThrowsAny<InvalidOperationException>(() => service.Subscribe(identifier, new BootstrapBlazorRootOutlet()));
-        Assert.Equal("There is already a subscriber to the content with the given root ID 'System.Object'.", exception.Message);
-
-        exception = Assert.ThrowsAny<InvalidOperationException>(() => service.Unsubscribe(new object()));
-        Assert.Equal("The subscriber with the given root ID 'System.Object' is already unsubscribed.", exception.Message);
+        service.Unsubscribe(new object());
     }
 
     [Fact]