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copied!<p>Without using something like postsharp, the minimal version I use uses something like:</p> <pre><code>public class Data : INotifyPropertyChanged { // boiler-plate public event PropertyChangedEventHandler PropertyChanged; protected virtual void OnPropertyChanged(string propertyName) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName)); } protected bool SetField<T>(ref T field, T value, string propertyName) { if (EqualityComparer<T>.Default.Equals(field, value)) return false; field = value; OnPropertyChanged(propertyName); return true; } // props private string name; public string Name { get { return name; } set { SetField(ref name, value, "Name"); } } } </code></pre> <p>Each property is then just something like:</p> <pre><code> private string name; public string Name { get { return name; } set { SetField(ref name, value, "Name"); } } </code></pre> <p>which isn't huge; it can also be used as a base-class if you want. The <code>bool</code> return from <code>SetField</code> tells you if it was a no-op, in case you want to apply other logic.</p> <hr> <p>or even easier with C# 5:</p> <pre><code>protected bool SetField<T>(ref T field, T value, [CallerMemberName] string propertyName = null) {...} </code></pre> <p>which can be called like this:</p> <pre><code>set { SetField(ref name, value); } </code></pre> <p>with which the compiler will add the <code>"Name"</code> automatically.</p> <hr> <p>C# 6.0 makes the implementation easier:</p> <pre><code>protected void OnPropertyChanged([CallerMemberName] string propertyName = null) { PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); } </code></pre> <hr> <p>...and now with C#7:</p> <pre><code>private string name; public string Name { get => name; set => SetField(ref name, value); } </code></pre>

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