EncodingInfo.cs

namespace System.Text
{
    [Serializable]
    public sealed class EncodingInfo
    {
        private int iCodePage;

        private string strEncodingName;

        private string strDisplayName;

        public int CodePage => iCodePage;

        public string Name => strEncodingName;

        public string DisplayName => strDisplayName;

        internal EncodingInfo(int codePage, string name, string displayName)
        {
            iCodePage = codePage;
            strEncodingName = name;
            strDisplayName = displayName;
        }

        public Encoding GetEncoding()
        {
            return Encoding.GetEncoding(iCodePage);
        }

        public override bool Equals(object value)
        {
            EncodingInfo encodingInfo = value as EncodingInfo;
            if (encodingInfo != null)
            {
                return CodePage == encodingInfo.CodePage;
            }
            return false;
        }

        public override int GetHashCode()
        {
            return CodePage;
        }
    }
}