Created
November 26, 2025 07:12
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Avalonia GetObservable for WPF
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| extension(DependencyObject obj) | |
| { | |
| public Observable<T> GetObservable<T>(DependencyProperty property) | |
| { | |
| var descriptor = DependencyPropertyDescriptor.FromProperty(property, obj.GetType()); | |
| return Observable | |
| .FromEventHandler( | |
| h => descriptor.AddValueChanged(obj, h), | |
| h => descriptor.RemoveValueChanged(obj, h)) | |
| .Select(_ => (T)obj.GetValue(property)) | |
| .Prepend((T)obj.GetValue(property)); | |
| } | |
| } |
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注意 DependencyProperty 是个静态的东西，一定需要释放。