diff --git a/ICSharpCode.Decompiler.Tests/ICSharpCode.Decompiler.Tests.csproj b/ICSharpCode.Decompiler.Tests/ICSharpCode.Decompiler.Tests.csproj
index 714454f75..2d8758138 100644
--- a/ICSharpCode.Decompiler.Tests/ICSharpCode.Decompiler.Tests.csproj
+++ b/ICSharpCode.Decompiler.Tests/ICSharpCode.Decompiler.Tests.csproj
@@ -264,6 +264,8 @@
+
+
diff --git a/ICSharpCode.Decompiler.Tests/TestCases/Ugly/NoAutomaticProperties.Expected.cs b/ICSharpCode.Decompiler.Tests/TestCases/Ugly/NoAutomaticProperties.Expected.cs
new file mode 100644
index 000000000..4b11c8101
--- /dev/null
+++ b/ICSharpCode.Decompiler.Tests/TestCases/Ugly/NoAutomaticProperties.Expected.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Runtime.CompilerServices;
+
+namespace ICSharpCode.Decompiler.Tests.TestCases.Ugly;
+
+internal class NoAutomaticProperties
+{
+ public int Plain {
+ [CompilerGenerated]
+ get {
+ return field;
+ }
+ [CompilerGenerated]
+ set {
+ field = value;
+ }
+ }
+
+ public int SemiAuto {
+ get {
+ return field;
+ }
+ set {
+ field = Math.Max(0, value);
+ }
+ }
+}
diff --git a/ICSharpCode.Decompiler.Tests/TestCases/Ugly/NoAutomaticProperties.cs b/ICSharpCode.Decompiler.Tests/TestCases/Ugly/NoAutomaticProperties.cs
new file mode 100644
index 000000000..752d8b9ad
--- /dev/null
+++ b/ICSharpCode.Decompiler.Tests/TestCases/Ugly/NoAutomaticProperties.cs
@@ -0,0 +1,36 @@
+// Copyright (c) 2026 Siegfried Pammer
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of this
+// software and associated documentation files (the "Software"), to deal in the Software
+// without restriction, including without limitation the rights to use, copy, modify, merge,
+// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
+// to whom the Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all copies or
+// substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+using System;
+
+namespace ICSharpCode.Decompiler.Tests.TestCases.Ugly
+{
+ internal class NoAutomaticProperties
+ {
+ public int Plain { get; set; }
+
+ public int SemiAuto {
+ get {
+ return field;
+ }
+ set {
+ field = Math.Max(0, value);
+ }
+ }
+ }
+}
diff --git a/ICSharpCode.Decompiler.Tests/UglyTestRunner.cs b/ICSharpCode.Decompiler.Tests/UglyTestRunner.cs
index c89807843..5db43d283 100644
--- a/ICSharpCode.Decompiler.Tests/UglyTestRunner.cs
+++ b/ICSharpCode.Decompiler.Tests/UglyTestRunner.cs
@@ -128,6 +128,14 @@ namespace ICSharpCode.Decompiler.Tests
});
}
+ [Test]
+ public async Task NoAutomaticProperties([ValueSource(nameof(roslynLatestOnlyOptions))] CompilerOptions cscOptions)
+ {
+ await RunForLibrary(cscOptions: cscOptions, decompilerSettings: new DecompilerSettings {
+ AutomaticProperties = false
+ });
+ }
+
[Test]
public async Task NoFieldKeyword([ValueSource(nameof(roslynLatestOnlyOptions))] CompilerOptions cscOptions)
{
diff --git a/ICSharpCode.Decompiler/CSharp/Transforms/PatternStatementTransform.cs b/ICSharpCode.Decompiler/CSharp/Transforms/PatternStatementTransform.cs
index 2f4adf6e4..e9bff79c0 100644
--- a/ICSharpCode.Decompiler/CSharp/Transforms/PatternStatementTransform.cs
+++ b/ICSharpCode.Decompiler/CSharp/Transforms/PatternStatementTransform.cs
@@ -111,7 +111,13 @@ namespace ICSharpCode.Decompiler.CSharp.Transforms
public override AstNode VisitPropertyDeclaration(PropertyDeclaration propertyDeclaration)
{
- if (context.Settings.AutomaticProperties
+ // Same rule as CSharpDecompiler.MemberIsHidden applies to the backing field: either
+ // setting on its own allows the field declaration to disappear, and
+ // GetterOnlyAutomaticProperties vetoes the getter-only case for both. Asking only
+ // about AutomaticProperties would skip the transform for a field-backed property
+ // while ExpressionBuilder.ConvertField has already printed "field" in its accessors,
+ // leaving the declaration and the keyword in the same output.
+ if ((context.Settings.AutomaticProperties || context.Settings.FieldKeyword)
&& (propertyDeclaration.Setter is not null || context.Settings.GetterOnlyAutomaticProperties))
{
AstNode? result = TransformAutomaticProperty(propertyDeclaration);