feat: LocalEndPoint 更改未可为空

Author: ArgoZhang

src/BootstrapBlazor/Services/TcpSocket/DefaultTcpSocketClient.cs

@@ -21,7 +21,7 @@ sealed class DefaultTcpSocketClient(IPEndPoint localEndPoint) : ITcpSocketClient
 
     public bool IsConnected => _client?.Connected ?? false;
 
-    public IPEndPoint LocalEndPoint => localEndPoint;
+    public IPEndPoint? LocalEndPoint { get; set; }
 
     [NotNull]
     public ILogger<DefaultTcpSocketClient>? Logger { get; set; }
@@ -237,10 +237,11 @@ private void Dispose(bool disposing)
     {
         if (disposing)
         {
+            LocalEndPoint = null;
             _remoteEndPoint = null;
 
             // 取消接收数据的任务
-            if (_receiveCancellationTokenSource is not null)
+            if (_receiveCancellationTokenSource != null)
             {
                 _receiveCancellationTokenSource.Cancel();
                 _receiveCancellationTokenSource.Dispose();

src/BootstrapBlazor/Services/TcpSocket/ITcpSocketClient.cs

@@ -53,7 +53,7 @@ public interface ITcpSocketClient : IDisposable
     /// <remarks>This property provides information about the local endpoint of the socket, which is typically
     /// used to identify the local address and port being used for communication. If the socket is not  bound to a
     /// specific local endpoint, this property may return <see langword="null"/>.</remarks>
-    IPEndPoint LocalEndPoint { get; }
+    IPEndPoint? LocalEndPoint { get; }
 
     /// <summary>
     /// Gets or sets the callback function to handle received data.