# System.ComponentModel ``` diff namespace System.ComponentModel { public sealed class AsyncOperation { + ~AsyncOperation(); } public sealed class ParenthesizePropertyNameAttribute : Attribute { - public override bool Equals(object o); + public override bool Equals(object obj); } public sealed class RefreshPropertiesAttribute : Attribute { - public override bool Equals(object value); + public override bool Equals(object obj); } public class TypeConverter { public class StandardValuesCollection : ICollection, IEnumerable { - int System.Collections.ICollection.Count { get; } - void System.Collections.ICollection.CopyTo(Array array, int index); - IEnumerator System.Collections.IEnumerable.GetEnumerator(); } } + public class VersionConverter : TypeConverter { + public VersionConverter(); + public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType); + public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType); + public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value); + public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType); + public override bool IsValid(ITypeDescriptorContext context, object value); + } } ```