FilterUIHintAttribute.cs

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using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
 
namespace System.ComponentModel.DataAnnotations;
 
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = false)]
[Obsolete("FilterUIHintAttribute has been deprecated and is not supported.")]
public sealed class FilterUIHintAttribute : Attribute
{
    private readonly UIHintAttribute.UIHintImplementation _implementation;
 
    public string FilterUIHint => _implementation.UIHint;
 
    public string? PresentationLayer => _implementation.PresentationLayer;
 
    public IDictionary<string, object?> ControlParameters => _implementation.ControlParameters;
 
    public FilterUIHintAttribute(string filterUIHint)
        : this(filterUIHint, null, Array.Empty<object>())
    {
    }
 
    public FilterUIHintAttribute(string filterUIHint, string? presentationLayer)
        : this(filterUIHint, presentationLayer, Array.Empty<object>())
    {
    }
 
    public FilterUIHintAttribute(string filterUIHint, string? presentationLayer, params object?[] controlParameters)
    {
        _implementation = new UIHintAttribute.UIHintImplementation(filterUIHint, presentationLayer, controlParameters);
    }
 
    public override int GetHashCode()
    {
        return _implementation.GetHashCode();
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj is FilterUIHintAttribute filterUIHintAttribute)
        {
            return _implementation.Equals(filterUIHintAttribute._implementation);
        }
        return false;
    }
}