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INotifyPropertyChanged With Generic Set Method

suggest change

The NotifyPropertyChangedBaseclass below defines a generic Set method that can be called from any derived type. 

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

    public virtual bool Set<T>(ref T field, T value, [CallerMemberName] string propertyName = null)
    {
        if (Equals(field, value))
            return false;
        storage = value;
        RaisePropertyChanged(propertyName);
        return true;
    }
}

To use this generic Set method, you simply need to create a class that derives from NotifyPropertyChangedBase. 

public class SomeViewModel : NotifyPropertyChangedBase
{
    private string _foo;
    private int _bar;

    public string Foo
    {
        get { return _foo; }
        set { Set(ref _foo, value); }
    }

    public int Bar
    {
        get { return _bar; }
        set { Set(ref _bar, value); }
    }
}

As shown above, you can call Set(ref _fieldName, value); in a property’s setter and it will automatically raise a PropertyChanged event if it is needed.

You can then register to the PropertyChanged event from another class that needs to handle property changes. 

public class SomeListener
{
    public SomeListener()
    {
        _vm = new SomeViewModel();
        _vm.PropertyChanged += OnViewModelPropertyChanged;
    }

    private void OnViewModelPropertyChanged(object sender, PropertyChangedEventArgs e)
    {
        Console.WriteLine($"Property {e.PropertyName} was changed.");
    }

    private readonly SomeViewModel _vm;

}
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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#
1 Literals
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4 Equality Operator
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137 Simulating C Unions with C# Structs
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144 Generating Random Numbers
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146 Unsafe Code in .NET
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151 Creating Own MessageBox in Windows Form Application
152 Including Font Resources
153 Garbage Collector
154 Windows Communication Foundation
155 Contributors