Update disposal check for .NET version compatibility

Taiizor · Taiizor · commit c5555c36ac4a · 2025-10-22T19:03:47.000+03:00
Refactored ThrowIfDisposed to use ObjectDisposedException.ThrowIf for .NET 7.0 or greater, while retaining the previous pattern for .NET 6.0. This improves code compatibility and leverages newer framework features where available.
diff --git a/src/Zetian/SmtpServer.cs b/src/Zetian/SmtpServer.cs
@@ -400,10 +400,14 @@ private void OnErrorOccurred(ErrorEventArgs args)
 
         private void ThrowIfDisposed()
         {
+#if NET6_0
             if (_disposed)
             {
                 throw new ObjectDisposedException(GetType().FullName);
             }
+#elif NET7_0_OR_GREATER
+            ObjectDisposedException.ThrowIf(_disposed, this);
+#endif
         }
 
         /// <inheritdoc />

Original file line number	Diff line number	Diff line change
`@@ -400,10 +400,14 @@ private void OnErrorOccurred(ErrorEventArgs args)`
`400`	`400`
`401`	`401`	`private void ThrowIfDisposed()`
`402`	`402`	`{`
	`403`	`+#if NET6_0`
`403`	`404`	`if (_disposed)`
`404`	`405`	`{`
`405`	`406`	`throw new ObjectDisposedException(GetType().FullName);`
`406`	`407`	`}`
	`408`	`+#elif NET7_0_OR_GREATER`
	`409`	`+ ObjectDisposedException.ThrowIf(_disposed, this);`
	`410`	`+#endif`
`407`	`411`	`}`
`408`	`412`
`409`	`413`	`/// <inheritdoc />`