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Implementing INotifyPropertyChanged in C# 6

suggest change

The implementation of INotifyPropertyChange can be error-prone, as the interface requires specifying property name as a string. In order to make the implementation more robust, an attribute CallerMemberName can be used. 

class C : INotifyPropertyChanged
{
    // backing field
    int offset;
    // property
    public int Offset
    {
        get
        {
            return offset;
        }
        set
        {
            if (offset == value)
                return;
            offset = value;
            RaisePropertyChanged();
        }
    }

    // helper method for raising PropertyChanged event
    void RaisePropertyChanged([CallerMemberName] string propertyName = null) =>
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));

    // interface implemetation
    public event PropertyChangedEventHandler PropertyChanged;
}

If you have several classes implementing INotifyPropertyChanged, you may find it useful to refactor out the interface implementation and the helper method to the common base class: 

class NotifyPropertyChangedImpl : INotifyPropertyChanged
{
    protected void RaisePropertyChanged([CallerMemberName] string propertyName = null) =>
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));

    // interface implemetation
    public event PropertyChangedEventHandler PropertyChanged;
}

class C : NotifyPropertyChangedImpl
{
    int offset;
    public int Offset
    {
        get { return offset; }
        set { if (offset != value) { offset = value; RaisePropertyChanged(); } }
    }
}
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INotifyPropertyChanged interface:
* INotifyPropertyChanged interface
* Implementing INotifyPropertyChanged in C# 6
* INotifyPropertyChanged With Generic Set Method
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0 Getting Started With C#
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132 Implementing Decorating Design Pattern
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137 Simulating C Unions with C# Structs
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151 Creating Own MessageBox in Windows Form Application
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153 Garbage Collector
154 Windows Communication Foundation
155 Contributors