reactiveui · ChrisPulman · Jan 3, 2026
diff --git a/README.md b/README.md
@@ -29,6 +29,7 @@ ReactiveUI Source Generators automatically generate ReactiveUI objects to stream
 - `[Reactive(Inheritance = InheritanceModifier.Virtual)]` With field and access modifiers. This will generate a virtual property.
 - `[Reactive(UseRequired = true)]` With field and access modifiers. This will generate a required property, (Not Required for partial properties, use required keyword for property declaration).
 - `[Reactive(nameof(RaiseProperty1), nameof(RaiseProperty2))]` With field and property changed notification for additional properties.
+- `[Reactive(WhenAnyValue = true, WhenAnyValueAccessModifier = PropertyAccessModifier.Private)]` With field and WhenAnyValue generation for the property. Has option to set the access modifier of the generated WhenAnyValue property.
 - `[ObservableAsProperty]` With field, method, Observable property and partial property support (C# 13 Visual Studio Version 17.12.0)
 - `[ObservableAsProperty(ReadOnly = false)]` Removes readonly keyword from the generated helper field
 - `[ObservableAsProperty(PropertyName = "ReadOnlyPropertyName")]`
@@ -166,6 +167,27 @@ public partial class MyReactiveClass : ReactiveObject
 }
 ```
 
+### Usage Reactive property with WhenAnyValue property generation
+```csharp
+using ReactiveUI.SourceGenerators;
+
+public partial class MyReactiveClass : ReactiveObject
+{
+    [Reactive(WhenAnyValue = true, WhenAnyValueAccessModifier = PropertyAccessModifier.Private)]
+    private string _myProperty;
+
+    public MyReactiveClass()
+    {
+        // You can now use the generated WhenAnyValue property
+        WhenAnyMyProperty
+            .Subscribe(value => 
+            {
+                // Handle value changes
+            });
+    }
+}
+```
+
 ### Usage Reactive property with property Attribute pass through
 ```csharp
 using ReactiveUI.SourceGenerators;

diff --git a/...ReactiveProperties#ReactiveUI.SourceGenerators.BindableDerivedListAttribute.g.verified.cs b/...ReactiveProperties#ReactiveUI.SourceGenerators.BindableDerivedListAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.BindableDerivedListAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...orGeneratorTests.FromIViewFor#ReactiveUI.SourceGenerators.IViewForAttribute.g.verified.cs b/...orGeneratorTests.FromIViewFor#ReactiveUI.SourceGenerators.IViewForAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.IViewForAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...orTests.FromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...orTests.FromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...ObservableMethods#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...ObservableMethods#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...leMethodsWithName#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...leMethodsWithName#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...romObservableProp#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...romObservableProp#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...PropNestedClasses#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...PropNestedClasses#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...tiesWithAttribute#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...tiesWithAttribute#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...ributeNullableRef#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...ributeNullableRef#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...sWithAttributeRef#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...sWithAttributeRef#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...ropertiesWithName#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...ropertiesWithName#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...omPartialProperty#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...omPartialProperty#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...orTests.FromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...orTests.FromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...mFieldNestedClass#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...mFieldNestedClass#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...ts.NamedFromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...ts.NamedFromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...ReadOnlyFromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...ReadOnlyFromField#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...romFieldProtected#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs b/...romFieldProtected#ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ObservableAsPropertyAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...eactiveFromPartialWithAlsoNotify#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs b/...eactiveFromPartialWithAlsoNotify#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.AccessModifier.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...tiveFromPartialWithAlsoNotify#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs b/...tiveFromPartialWithAlsoNotify#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ReactiveAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
@@ -46,6 +46,16 @@ public ReactiveAttribute(params string[] alsoNotify)
     /// Gets the AlsoNotify properties to raise change notifications for.
     /// </summary>
     public string[]? AlsoNotify { get; }
+
+    /// <summary>
+    /// Indicates that the property should create an observable for any value changes.
+    /// </summary>
+    public bool WhenAnyValue { get; init; }
+
+    /// <summary>
+    /// Gets the AccessModifier of the WhenAnyValue observable property.
+    /// </summary>
+    public PropertyAccessModifier WhenAnyValueAccessModifier { get; init; }
 }
 #nullable restore
-#pragma warning restore
+#pragma warning restore
diff --git a/...neratorTests.FromReactiveFromPartialWithAlsoNotify#TestNs.TestVM.Properties.g.verified.cs b/...neratorTests.FromReactiveFromPartialWithAlsoNotify#TestNs.TestVM.Properties.g.verified.cs
@@ -22,6 +22,8 @@ public int Test4
                 this.RaisePropertyChanged(nameof(OtherNotifyProperty));
             }
         }
+
+
     }
 }
 #nullable restore

diff --git a/...ts.FromReactivePartialProperties#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs b/...ts.FromReactivePartialProperties#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.AccessModifier.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...FromReactivePartialProperties#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs b/...FromReactivePartialProperties#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ReactiveAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
@@ -46,6 +46,16 @@ public ReactiveAttribute(params string[] alsoNotify)
     /// Gets the AlsoNotify properties to raise change notifications for.
     /// </summary>
     public string[]? AlsoNotify { get; }
+
+    /// <summary>
+    /// Indicates that the property should create an observable for any value changes.
+    /// </summary>
+    public bool WhenAnyValue { get; init; }
+
+    /// <summary>
+    /// Gets the AccessModifier of the WhenAnyValue observable property.
+    /// </summary>
+    public PropertyAccessModifier WhenAnyValueAccessModifier { get; init; }
 }
 #nullable restore
-#pragma warning restore
+#pragma warning restore
diff --git a/...mReactiveProperiesWithAttributes#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs b/...mReactiveProperiesWithAttributes#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.AccessModifier.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...activeProperiesWithAttributes#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs b/...activeProperiesWithAttributes#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ReactiveAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
@@ -46,6 +46,16 @@ public ReactiveAttribute(params string[] alsoNotify)
     /// Gets the AlsoNotify properties to raise change notifications for.
     /// </summary>
     public string[]? AlsoNotify { get; }
+
+    /// <summary>
+    /// Indicates that the property should create an observable for any value changes.
+    /// </summary>
+    public bool WhenAnyValue { get; init; }
+
+    /// <summary>
+    /// Gets the AccessModifier of the WhenAnyValue observable property.
+    /// </summary>
+    public PropertyAccessModifier WhenAnyValueAccessModifier { get; init; }
 }
 #nullable restore
-#pragma warning restore
+#pragma warning restore
diff --git a/...GeneratorTests.FromReactiveProperiesWithAttributes#TestNs.TestVM.Properties.g.verified.cs b/...GeneratorTests.FromReactiveProperiesWithAttributes#TestNs.TestVM.Properties.g.verified.cs
@@ -23,6 +23,8 @@ public int Test3
                 this.RaiseAndSetIfChanged(ref _test3, value);
             }
         }
+
+
     }
 }
 #nullable restore

diff --git a/...atorTests.FromReactiveProperties#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs b/...atorTests.FromReactiveProperties#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.AccessModifier.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...rTests.FromReactiveProperties#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs b/...rTests.FromReactiveProperties#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ReactiveAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
@@ -46,6 +46,16 @@ public ReactiveAttribute(params string[] alsoNotify)
     /// Gets the AlsoNotify properties to raise change notifications for.
     /// </summary>
     public string[]? AlsoNotify { get; }
+
+    /// <summary>
+    /// Indicates that the property should create an observable for any value changes.
+    /// </summary>
+    public bool WhenAnyValue { get; init; }
+
+    /// <summary>
+    /// Gets the AccessModifier of the WhenAnyValue observable property.
+    /// </summary>
+    public PropertyAccessModifier WhenAnyValueAccessModifier { get; init; }
 }
 #nullable restore
-#pragma warning restore
+#pragma warning restore
diff --git a/...TIVE/ReactiveGeneratorTests.FromReactiveProperties#TestNs.TestVM.Properties.g.verified.cs b/...TIVE/ReactiveGeneratorTests.FromReactiveProperties#TestNs.TestVM.Properties.g.verified.cs
@@ -21,6 +21,8 @@ public int Test1
                 this.RaiseAndSetIfChanged(ref _test1, value);
             }
         }
+
+
     }
 }
 #nullable restore

diff --git a/...romReactivePropertiesCalledValue#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs b/...romReactivePropertiesCalledValue#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.AccessModifier.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...ReactivePropertiesCalledValue#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs b/...ReactivePropertiesCalledValue#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ReactiveAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
@@ -46,6 +46,16 @@ public ReactiveAttribute(params string[] alsoNotify)
     /// Gets the AlsoNotify properties to raise change notifications for.
     /// </summary>
     public string[]? AlsoNotify { get; }
+
+    /// <summary>
+    /// Indicates that the property should create an observable for any value changes.
+    /// </summary>
+    public bool WhenAnyValue { get; init; }
+
+    /// <summary>
+    /// Gets the AccessModifier of the WhenAnyValue observable property.
+    /// </summary>
+    public PropertyAccessModifier WhenAnyValueAccessModifier { get; init; }
 }
 #nullable restore
-#pragma warning restore
+#pragma warning restore
diff --git a/...veGeneratorTests.FromReactivePropertiesCalledValue#TestNs.TestVM.Properties.g.verified.cs b/...veGeneratorTests.FromReactivePropertiesCalledValue#TestNs.TestVM.Properties.g.verified.cs
@@ -21,6 +21,8 @@ public string Value
                 this.RaiseAndSetIfChanged(ref this.value, value);
             }
         }
+
+
     }
 }
 #nullable restore

diff --git a/...FromReactivePropertiesWithAccess#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs b/...FromReactivePropertiesWithAccess#ReactiveUI.SourceGenerators.AccessModifier.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.AccessModifier.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.

diff --git a/...mReactivePropertiesWithAccess#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs b/...mReactivePropertiesWithAccess#ReactiveUI.SourceGenerators.ReactiveAttribute.g.verified.cs
@@ -1,5 +1,5 @@
 //HintName: ReactiveUI.SourceGenerators.ReactiveAttribute.g.cs
-// Copyright (c) 2025 .NET Foundation and Contributors. All rights reserved.
+// Copyright (c) 2026 .NET Foundation and Contributors. All rights reserved.
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for full license information.
@@ -46,6 +46,16 @@ public ReactiveAttribute(params string[] alsoNotify)
     /// Gets the AlsoNotify properties to raise change notifications for.
     /// </summary>
     public string[]? AlsoNotify { get; }
+
+    /// <summary>
+    /// Indicates that the property should create an observable for any value changes.
+    /// </summary>
+    public bool WhenAnyValue { get; init; }
+
+    /// <summary>
+    /// Gets the AccessModifier of the WhenAnyValue observable property.
+    /// </summary>
+    public PropertyAccessModifier WhenAnyValueAccessModifier { get; init; }
 }
 #nullable restore
-#pragma warning restore
+#pragma warning restore
diff --git a/...iveGeneratorTests.FromReactivePropertiesWithAccess#TestNs.TestVM.Properties.g.verified.cs b/...iveGeneratorTests.FromReactivePropertiesWithAccess#TestNs.TestVM.Properties.g.verified.cs
@@ -21,6 +21,8 @@ public int Test2
                 this.RaiseAndSetIfChanged(ref _test2, value);
             }
         }
+
+
     }
 }
 #nullable restore
-Original file line number
+Diff line change
@@ Expand Up / @@ -22,6 +22,8 @@ public int Test4 @@
                     this.RaisePropertyChanged(nameof(OtherNotifyProperty));
                 }
             }
         }
     }
     #nullable restore
@@ Expand Down @@