NotifyParentPropertyAttribute.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.ComponentModel;
 
[AttributeUsage(AttributeTargets.Property)]
public sealed class NotifyParentPropertyAttribute : Attribute
{
    public static readonly NotifyParentPropertyAttribute Yes = new NotifyParentPropertyAttribute(notifyParent: true);
 
    public static readonly NotifyParentPropertyAttribute No = new NotifyParentPropertyAttribute(notifyParent: false);
 
    public static readonly NotifyParentPropertyAttribute Default = No;
 
    public bool NotifyParent { get; }
 
    public NotifyParentPropertyAttribute(bool notifyParent)
    {
        NotifyParent = notifyParent;
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj is NotifyParentPropertyAttribute notifyParentPropertyAttribute)
        {
            return notifyParentPropertyAttribute.NotifyParent == NotifyParent;
        }
        return false;
    }
 
    public override int GetHashCode()
    {
        return base.GetHashCode();
    }
 
    public override bool IsDefaultAttribute()
    {
        return Equals(Default);
    }
}