System.Version не сериализовано

Question

У меня есть класс со свойством System.Version, который выглядит следующим образом:

• Версия
  • Сборка: 111
  • Major: 1
  • MajorRevision: 0
  • Minor: 1
  • MinorRevision: 10
  • Revision: 10

Когда я сериализую класс, версия всегда пуста:

<Version />

Класс клиента выглядит так:

[Serializable]
public class Client
{
    public string Description;
    public string Directory;
    public DateTime ReleaseDate;
    public Version Version;
}

Answer 1

System.Version не сериализуем, если вы посмотрите на его свойства в MSDN , вы увидите, что у них нет сеттеров ... поэтому сериализатор не будет их хранить,Однако этот подход все еще работает .Эта статья (старая, но все еще работает) предоставляет класс Version, который можно сериализовать. Можете ли вы переключиться на это и начать?мертвый сайт из архива .org, воспроизведенный ниже.

using System;
using System.Globalization;
namespace CubicOrange.Version
{
    /// <summary>
    /// Serializable version of the System.Version class.
    /// </summary>
    [Serializable]
    public class ModuleVersion : ICloneable, IComparable
    {
        private int major;
        private int minor;
        private int build;
        private int revision;
        /// <summary>
        /// Gets the major.
        /// </summary>
        /// <value></value>
        public int Major
        {
            get
            {
                return major;
            }
            set
            {
                major = value;
            }
        }
        /// <summary>
        /// Gets the minor.
        /// </summary>
        /// <value></value>
        public int Minor
        {
            get
            {
                return minor;
            }
            set
            {
                minor = value;
            }
        }
        /// <summary>
        /// Gets the build.
        /// </summary>
        /// <value></value>
        public int Build
        {
            get
            {
                return build;
            }
            set
            {
                build = value;
            }
        }
        /// <summary>
        /// Gets the revision.
        /// </summary>
        /// <value></value>
        public int Revision
        {
            get
            {
                return revision;
            }
            set
            {
                revision = value;
            }
        }
        /// <summary>
        /// Creates a new <see cref="ModuleVersion"/> instance.
        /// </summary>
        public ModuleVersion()
        {
            this.build = -1;
            this.revision = -1;
            this.major = 0;
            this.minor = 0;
        }
        /// <summary>
        /// Creates a new <see cref="ModuleVersion"/> instance.
        /// </summary>
        /// <param name="version">Version.</param>
        public ModuleVersion(string version)
        {
            this.build = -1;
            this.revision = -1;
            if (version == null)
            {
                throw new ArgumentNullException("version");
            }
            char[] chArray1 = new char[1] { '.' };
            string[] textArray1 = version.Split(chArray1);
            int num1 = textArray1.Length;
            if ((num1 < 2) || (num1 > 4))
            {
                throw new ArgumentException("Arg_VersionString");
            }
            this.major = int.Parse(textArray1[0], CultureInfo.InvariantCulture);
            if (this.major < 0)
            {
                throw new ArgumentOutOfRangeException("version", "ArgumentOutOfRange_Version");
            }
            this.minor = int.Parse(textArray1[1], CultureInfo.InvariantCulture);
            if (this.minor < 0)
            {
                throw new ArgumentOutOfRangeException("version", "ArgumentOutOfRange_Version");
            }
            num1 -= 2;
            if (num1 > 0)
            {
                this.build = int.Parse(textArray1[2], CultureInfo.InvariantCulture);
                if (this.build < 0)
                {
                    throw new ArgumentOutOfRangeException("build", "ArgumentOutOfRange_Version");
                }
                num1--;
                if (num1 > 0)
                {
                    this.revision = int.Parse(textArray1[3], CultureInfo.InvariantCulture);
                    if (this.revision < 0)
                    {
                        throw new ArgumentOutOfRangeException("revision", "ArgumentOutOfRange_Version");
                    }
                }
            }
        }
        /// <summary>
        /// Creates a new <see cref="ModuleVersion"/> instance.
        /// </summary>
        /// <param name="major">Major.</param>
        /// <param name="minor">Minor.</param>
        public ModuleVersion(int major, int minor)
        {
            this.build = -1;
            this.revision = -1;
            if (major < 0)
            {
                throw new ArgumentOutOfRangeException("major", "ArgumentOutOfRange_Version");
            }
            if (minor < 0)
            {
                throw new ArgumentOutOfRangeException("minor", "ArgumentOutOfRange_Version");
            }
            this.major = major;
            this.minor = minor;
            this.major = major;
        }
        /// <summary>
        /// Creates a new <see cref="ModuleVersion"/> instance.
        /// </summary>
        /// <param name="major">Major.</param>
        /// <param name="minor">Minor.</param>
        /// <param name="build">Build.</param>
        public ModuleVersion(int major, int minor, int build)
        {
            this.build = -1;
            this.revision = -1;
            if (major < 0)
            {
                throw new ArgumentOutOfRangeException("major", "ArgumentOutOfRange_Version");
            }
            if (minor < 0)
            {
                throw new ArgumentOutOfRangeException("minor", "ArgumentOutOfRange_Version");
            }
            if (build < 0)
            {
                throw new ArgumentOutOfRangeException("build", "ArgumentOutOfRange_Version");
            }
            this.major = major;
            this.minor = minor;
            this.build = build;
        }
        /// <summary>
        /// Creates a new <see cref="ModuleVersion"/> instance.
        /// </summary>
        /// <param name="major">Major.</param>
        /// <param name="minor">Minor.</param>
        /// <param name="build">Build.</param>
        /// <param name="revision">Revision.</param>
        public ModuleVersion(int major, int minor, int build, int revision)
        {
            this.build = -1;
            this.revision = -1;
            if (major < 0)
            {
                throw new ArgumentOutOfRangeException("major", "ArgumentOutOfRange_Version");
            }
            if (minor < 0)
            {
                throw new ArgumentOutOfRangeException("minor", "ArgumentOutOfRange_Version");
            }
            if (build < 0)
            {
                throw new ArgumentOutOfRangeException("build", "ArgumentOutOfRange_Version");
            }
            if (revision < 0)
            {
                throw new ArgumentOutOfRangeException("revision", "ArgumentOutOfRange_Version");
            }
            this.major = major;
            this.minor = minor;
            this.build = build;
            this.revision = revision;
        }
        #region ICloneable Members
        /// <summary>
        /// Clones this instance.
        /// </summary>
        /// <returns></returns>
        public object Clone()
        {
            ModuleVersion version1 = new ModuleVersion();
            version1.major = this.major;
            version1.minor = this.minor;
            version1.build = this.build;
            version1.revision = this.revision;
            return version1;
        }
        #endregion
        #region IComparable Members
        /// <summary>
        /// Compares to.
        /// </summary>
        /// <param name="obj">Obj.</param>
        /// <returns></returns>
        public int CompareTo(object version)
        {
            if (version == null)
            {
                return 1;
            }
            if (!(version is ModuleVersion))
            {
                throw new ArgumentException("Arg_MustBeVersion");
            }
            ModuleVersion version1 = (ModuleVersion)version;
            if (this.major != version1.Major)
            {
                if (this.major > version1.Major)
                {
                    return 1;
                }
                return -1;
            }
            if (this.minor != version1.Minor)
            {
                if (this.minor > version1.Minor)
                {
                    return 1;
                }
                return -1;
            }
            if (this.build != version1.Build)
            {
                if (this.build > version1.Build)
                {
                    return 1;
                }
                return -1;
            }
            if (this.revision == version1.Revision)
            {
                return 0;
            }
            if (this.revision > version1.Revision)
            {
                return 1;
            }
            return -1;
        }
        #endregion
        /// <summary>
        /// Equalss the specified obj.
        /// </summary>
        /// <param name="obj">Obj.</param>
        /// <returns></returns>
        public override bool Equals(object obj)
        {
            if ((obj == null) || !(obj is ModuleVersion))
            {
                return false;
            }
            ModuleVersion version1 = (ModuleVersion)obj;
            if (((this.major == version1.Major) && (this.minor == version1.Minor)) && (this.build == version1.Build) && (this.revision == version1.Revision))
            {
                return true;
            }
            return false;
        }
        /// <summary>
        /// Gets the hash code.
        /// </summary>
        /// <returns></returns>
        public override int GetHashCode()
        {
            int num1 = 0;
            num1 |= ((this.major & 15) << 0x1c);
            num1 |= ((this.minor & 0xff) << 20);
            num1 |= ((this.build & 0xff) << 12);
            return (num1 | this.revision & 0xfff);
        }
        /// <summary>
        /// Operator ==s the specified v1.
        /// </summary>
        /// <param name="v1">V1.</param>
        /// <param name="v2">V2.</param>
        /// <returns></returns>
        public static bool operator ==(ModuleVersion v1, ModuleVersion v2)
        {
            return v1.Equals(v2);
        }
        /// <summary>
        /// Operator &gt;s the specified v1.
        /// </summary>
        /// <param name="v1">V1.</param>
        /// <param name="v2">V2.</param>
        /// <returns></returns>
        public static bool operator >(ModuleVersion v1, ModuleVersion v2)
        {
            return (v2 < v1);
        }
        /// <summary>
        /// Operator &gt;=s the specified v1.
        /// </summary>
        /// <param name="v1">V1.</param>
        /// <param name="v2">V2.</param>
        /// <returns></returns>
        public static bool operator >=(ModuleVersion v1, ModuleVersion v2)
        {
            return (v2 <= v1);
        }
        /// <summary>
        /// Operator !=s the specified v1.
        /// </summary>
        /// <param name="v1">V1.</param>
        /// <param name="v2">V2.</param>
        /// <returns></returns>
        public static bool operator !=(ModuleVersion v1, ModuleVersion v2)
        {
            return (v1 != v2);
        }
        /// <summary>
        /// Operator &lt;s the specified v1.
        /// </summary>
        /// <param name="v1">V1.</param>
        /// <param name="v2">V2.</param>
        /// <returns></returns>
        public static bool operator <(ModuleVersion v1, ModuleVersion v2)
        {
            if (v1 == null)
            {
                throw new ArgumentNullException("v1");
            }
            return (v1.CompareTo(v2) < 0);
        }
        /// <summary>
        /// Operator &lt;=s the specified v1.
        /// </summary>
        /// <param name="v1">V1.</param>
        /// <param name="v2">V2.</param>
        /// <returns></returns>
        public static bool operator <=(ModuleVersion v1, ModuleVersion v2)
        {
            if (v1 == null)
            {
                throw new ArgumentNullException("v1");
            }
            return (v1.CompareTo(v2) <= 0);
        }
        /// <summary>
        /// Toes the string.
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            if (this.build == -1)
            {
                return this.ToString(2);
            }
            if (this.revision == -1)
            {
                return this.ToString(3);
            }
            return this.ToString(4);
        }
        /// <summary>
        /// Toes the string.
        /// </summary>
        /// <param name="fieldCount">Field count.</param>
        /// <returns></returns>
        public string ToString(int fieldCount)
        {
            object[] objArray1;
            switch (fieldCount)
            {
                case 0:
                    {
                        return string.Empty;
                    }
                case 1:
                    {
                        return (this.major.ToString());
                    }
                case 2:
                    {
                        return (this.major.ToString() + "." + this.minor.ToString());
                    }
            }
            if (this.build == -1)
            {
                throw new ArgumentException(string.Format("ArgumentOutOfRange_Bounds_Lower_Upper {0},{1}", "0", "2"), "fieldCount");
            }
            if (fieldCount == 3)
            {
                objArray1 = new object[5] { this.major, ".", this.minor, ".", this.build };
                return string.Concat(objArray1);
            }
            if (this.revision == -1)
            {
                throw new ArgumentException(string.Format("ArgumentOutOfRange_Bounds_Lower_Upper {0},{1}", "0", "3"), "fieldCount");
            }
            if (fieldCount == 4)
            {
                objArray1 = new object[7] { this.major, ".", this.minor, ".", this.build, ".", this.revision };
                return string.Concat(objArray1);
            }
            throw new ArgumentException(string.Format("ArgumentOutOfRange_Bounds_Lower_Upper {0},{1}", "0", "4"), "fieldCount");
        }
    }
}

Answer 2

Я предпочитаю использовать подход ниже, поэтому в моем классе есть только одно свойство с типом VersionXml Неявные операторы действительно полезны здесь.

[Serializable]
[XmlType("Version")]
public class VersionXml
{
    public VersionXml()
    {
        this.Version = null;
    }

    public VersionXml(Version Version)
    {
        this.Version = Version;
    }

    [XmlIgnore]
    public Version Version { get; set; }

    [XmlText]
    [EditorBrowsable(EditorBrowsableState.Never), Browsable(false)]
    public string Value
    {
        get { return this.Version == null ? string.Empty : this.Version.ToString(); }
        set
        {
            Version temp;
            Version.TryParse(value, out temp);
            this.Version = temp;
        }
    }

    public static implicit operator Version(VersionXml VersionXml)
    {
        return VersionXml.Version;
    }

    public static implicit operator VersionXml(Version Version)
    {
        return new VersionXml(Version);
    }

    public override string ToString()
    {
        return this.Value;
    }
}

Answer 3

Вы можете использовать строковое свойство прокси:

[XmlIgnore]
public System.Version Version { get; set; }
[EditorBrowsable(EditorBrowsableState.Never), Browsable(false)]
public string version 
{
    get 
    {
        if (this.Version == null)
            return string.Empty;
        else
            return this.Version.ToString();
    }
    set 
    {
        if(!String.IsNullOrEmpty(value))
           this.Version = new Version(value);
    } 
}

Answer 4

Я очистил реализацию Ника Крейвера, чтобы сделать ее более лаконичной и удобочитаемой, добавил поддержку сериализации XML (с атрибутами вместо отдельных элементов), реализовал строку TypeConverter, а также исправил пару проблем сравнения, которые имели возможность для NullReferenceExceptions или бесконечные циклы (вызов перегруженных операторов изнутри себя).

Я также использовал некоторые функции C # 6.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;
using System.Xml.Serialization;

[Serializable]
[TypeConverter(typeof(VersionCodeConverter))]
public class VersionCode : ICloneable, IComparable<VersionCode>, IEquatable<VersionCode>
{
  [XmlAttribute] public int Major { get; private set; }
  [XmlAttribute] public int Minor { get; private set; }
  [XmlAttribute] public int Build { get; private set; } = -1;
  [XmlAttribute] public int Revision { get; private set; } = -1;

  public VersionCode() { }

  public VersionCode(int major, int minor, int build = 0, int revision = 0)
  {
    if (major < 0)
      throw new ArgumentOutOfRangeException(nameof(major), $"{nameof(major)} cannot be less than 0");

    if (minor < 0)
      throw new ArgumentOutOfRangeException(nameof(minor), $"{nameof(minor)} cannot be less than 0");

    if (build < 0)
      throw new ArgumentOutOfRangeException(nameof(build), $"{nameof(build)} cannot be less than 0");

    if (revision < 0)
      throw new ArgumentOutOfRangeException(nameof(revision), $"{nameof(revision)} cannot be less than 0");

    Major = major;
    Minor = minor;
    Build = build;
    Revision = revision;
  }

  public VersionCode(string version)
  {
    if (version == null)
      throw new ArgumentNullException(nameof(version));

    var components = new Stack<string>(version.Split('.'));

    if (components.Count < 2 || components.Count > 4)
      throw new ArgumentException(nameof(version));

    Major = int.Parse(components.Pop(), CultureInfo.InvariantCulture);

    if (Major < 0)
      throw new ArgumentOutOfRangeException(nameof(version), $"{nameof(Major)} cannot be less than 0");

    Minor = int.Parse(components.Pop(), CultureInfo.InvariantCulture);

    if (Minor < 0)
      throw new ArgumentOutOfRangeException(nameof(version), $"{nameof(Minor)} cannot be less than 0");

    if (!components.Any())
      return;

    Build = int.Parse(components.Pop(), CultureInfo.InvariantCulture);

    if (Build < 0)
      throw new ArgumentOutOfRangeException(nameof(version), $"{nameof(Build)} cannot be less than 0");

    if (!components.Any())
      return;

    Revision = int.Parse(components.Pop(), CultureInfo.InvariantCulture);

    if (Revision < 0)
      throw new ArgumentOutOfRangeException(nameof(version), $"{nameof(Revision)} cannot be less than 0");
  }

  public object Clone()
    => new VersionCode(Major, Minor, Build, Revision);

  public int CompareTo(VersionCode version) 
    => Major != version.Major ? Major.CompareTo(version.Major)
      : Minor != version.Minor ? Minor.CompareTo(version.Minor)
        : Build != version.Build ? Build.CompareTo(version.Build)
          : Revision.CompareTo(version.Revision);

  public override bool Equals(object obj)
    => obj is VersionCode && Equals((VersionCode)obj);

  public bool Equals(VersionCode version)
    => Major == version.Major
    && Minor == version.Minor
    && Build == version.Build
    && Revision == version.Revision;

  public override int GetHashCode()
  {
    var hash = 0;

    hash |= (Major & 15) << 0x1c;
    hash |= (Minor & 0xff) << 20;
    hash |= (Build & 0xff) << 12;
    hash |= (Revision & 0xfff);

    return hash;
  }

  public static bool operator ==(VersionCode v1, VersionCode v2)
    => ReferenceEquals(v1, null) ? ReferenceEquals(v2, null) : v1.Equals(v2);

  public static bool operator !=(VersionCode v1, VersionCode v2)
    => !(v1 == v2);

  public static bool operator >(VersionCode v1, VersionCode v2)
    => v2 < v1;

  public static bool operator >=(VersionCode v1, VersionCode v2)
    => v2 <= v1;

  public static bool operator <(VersionCode v1, VersionCode v2)
    => !ReferenceEquals(v1, null) && v1.CompareTo(v2) < 0;

  public static bool operator <=(VersionCode v1, VersionCode v2)
    => !ReferenceEquals(v1, null) && v1.CompareTo(v2) <= 0;

  public override string ToString()
    => Build < 0 ? $"{Major}.{Minor}"
      : Revision < 0 ? $"{Major}.{Minor}.{Build}"
        : $"{Major}.{Minor}.{Build}.{Revision}";
}

public class VersionCodeConverter : TypeConverter
{
  public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
    => sourceType == typeof(string)
    || base.CanConvertFrom(context, sourceType);

  public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
  {
    var version = value as string;

    return version != null 
      ? new VersionCode(version)
      : base.ConvertFrom(context, culture, value);
  }
}

Answer 5

Точнее, System.Version не XML -сериализуем. Он является сериализуемым с BinaryFormatter, например:

Version version = new Version(1, 2, 3, 4);

using (MemoryStream stream = new MemoryStream())
{
    BinaryFormatter formatter = new BinaryFormatter();
    formatter.Serialize(stream, version);

    stream.Position = 0;

    Version deserialized = (Version)formatter.Deserialize(stream);
}

Answer 6

Вам необходимо определить свои get и set аксессоры, как:

public class Version
{
    public int Build { get; set; }
    public int Major { get; set; }
    public int MajorRevision { get; set; }
    public int Minor { get; set; }
    public int MinorRevision { get; set; }
    public int Revision { get; set; }
}

// ...

new XmlSerializer(typeof (Version))
    .Serialize(Console.Out,
               new Version()
                   {
                       Build = 111,
                       Major = 1,
                       MajorRevision = 0,
                       Minor = 1,
                       MinorRevision = 10,
                       Revision = 10
                   }
    );

Я получил этот вывод:

<?xml version="1.0" encoding="ibm850"?>
<Version xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Build>111</Build>
  <Major>1</Major>
  <MajorRevision>0</MajorRevision>
  <Minor>1</Minor>
  <MinorRevision>10</MinorRevision>
  <Revision>10</Revision>
</Version>