您好 :) 克隆包含winForm中其他对象和列表的对象时遇到问题。我想克隆类型 结构 的对象首先在下面提供类 我尝试过浅克隆
public Structure Clone()
{
return this.MemberwiseClone() as Structure;
}
说它没用，所以我搜索了https://stackoverflow.com/并进行了深度克隆
深度克隆对象 以及 如何在 .NET（特别是 C#）中对对象进行深度复制？
public static T DeepClone<T>(T obj)
{
using (var ms = new MemoryStream())
{
var formatter = new BinaryFormatter();
formatter.Serialize(ms, obj);
ms.Position = 0;
return (T) formatter.Deserialize(ms);
}
}
我遇到的问题是我正在获取对象的备份副本
var backup=DeepClone<Structure>(this.sched); //sched is Structure Object
然后更改this.sched备份更改:(
我的课程结构是：
[Serializable]
public class Sub
{
string name;
int studentsNumber;
int unassaignedStudent;
public Sub(string name, int number)
{
this.name = name;
this.studentsNumber = number;
this.unassaignedStudent = number;
}
public Subject()
{
this.name = "";
this.studentsNumber = 0;
this.unassaignedStudent = 0;
}
public bool Assigne(int count)
{
//stuff
}
public Sub Clone()
{
return this.MemberwiseClone() as Sub;
}
}
[Serializable]
class Room
{
string name;
int studentsNumber;
int full;
private int freeSeats;
List<Sub> subjects;
/// <summary>
/// the list of subjects
/// </summary>
internal List<Sub> Subjects
{
get { return subjects; }
set { subjects = value; }
}
Dictionary<Subject, int> variations;
public Room(string name, int number)
{
this.name = name;
this.studentsNumber = number;
this.full = 0;
this.subjects = new List<Subject>();
this.variations = new Dictionary<Subject, int>();
this.freeSeats = number;
}
public Room(int number)
{
this.studentsNumber = number;
this.full = 0;
this.subjects = new List<Subject>();
this.variations = new Dictionary<Subject, int>();
this.freeSeats = number;
}
public Room()
{
this.name = "R" + count.ToString();
count++;
this.studentsNumber = 0;
this.full = 0;
this.subjects = new List<Sub>();
this.variation= new Dictionary<Sub, int>();
this.freeSeats = 0;
}
public bool addSubject(Sub sbj)
{
//also stuff
}
public bool addPartialSubject(Sub sbj)
{
//stuff
// return false;
}
public Room Clone()
{
return this.MemberwiseClone() as Room;
}
}
[Serializable]
class Period
{
List<Room> rooms;
int conflicts;
List<Sub> subjects;
internal List<Sub> Subjects
{
get { return subjects; }
set { subjects = value; }
}
/// <summary>
/// Create an instance of class Period
/// </summary>
/// <param name="rooms">the rooms in this Period</param>
public Period(List<Room> rooms)
{
this.conflicts = 0;
this.rooms = rooms;
subjects = new List<Subject>();
fillSubjects(ref rooms, ref subjects);
}
public Period()
{
this.conflicts = 0;
this.rooms = null;
subjects = new List<Subt>();
freeSeats = 0;
}
/// <summary>
/// Fill the subjects in the rooms to the list of subjects
/// </summary>
/// <param name="rooms">referance to the list of the rooms</param>
/// <param name="subjects">referance to the list of the subjects</param>
private void fillSubjects(ref List<Room> rooms, ref List<Sub> subjects)
{
foreach (var room in rooms)
{
foreach (var subject in room.Subjects)
{
if (!subjects.Exists(s => s.Name == subject.Name))
subjects.Add(subject);
}
}
}
/// <summary>
/// Adds the given subject to the period if there is a place in any room
/// </summary>
/// <param name="s">the subject to add</param>
/// <returns>true if there is space for this subject and added, otherwise false</returns>
public bool AddSubject(Sub s)
{
foreach (var room in rooms)
{
if (room.addSubject(s))
{
//stuff
}
else
if (room.addPartialSubject(s))
{
//stuff
}
}
return false;
}
private int CalculateConflictions(Sub s)
{
//also a lot of stuff
}
}
[Serializable]
class Structure:IDisposable
{
int days;
/// <summary>
/// the number of days in the Schedual
/// </summary>
public int Days
{
get { return days; }
set { days = value; }
}
int periods;
Period[,] schedualArray;
List<Room> rooms;
internal List<Room> Rooms
{
get { return rooms; }
set { rooms = value; }
}
/// <summary>
/// Creates an instance of the Structure object
/// </summary>
/// <param name="rooms">a list of the rooms in the Schedual</param>
public Structure(int days, int periods,List<Room> rooms)
{
this.days = days;
this.periods = periods;
this.rooms=rooms;
this.schedualArray = new Period[days, periods];
this.subjectCount = 0;
for (int i = 0; i < days; i++)
{
for (int j = 0; j < periods; j++)
{
schedualArray[i, j] = new Period(CloneList(ref rooms)); //here i cloned the list to be in the safe side and it didn't work also
}
}
}
public Structure()
{
this.days = 0;
this.totalEval = Int32.MaxValue;
this.periods = 0;
this.rooms = null;
this.subjectCount = 0;
this.schedualArray = null;
}
internal bool AddSubject(Sub subject, int day, int period)
{
//add the subject into inner lists (room)
}
public void PrintStruct()
{
for (int i = 0; i < days; i++)
{
for (int j = 0; j < periods; j++)
{
foreach (var subject in schedualArray[i, j].Subjects)
{
Console.Write("\t\t");
}
Console.Write("\t\t");
}
Console.WriteLine();
}
}
public Structure Clone()
{
return this.MemberwiseClone() as Structure;
}
public List<Room> CloneList(ref List<Room> rooms)
{
var lst = new List<Room>();
foreach (var room in rooms)
{
lst.Add(DeepClone<Room>(room));
}
return lst;
}
internal void RemoveSubject(Sub subject)
{
//..................
}
#region IDisposable Members
public void Dispose()
{
GC.Collect(g, GCCollectionMode.Forced);
}
#endregion
}
我现在真的不知道克隆过程的细节是什么，但我的要求是克隆整个对象，其中包含对象结构和层次结构中的连续对象以及列表指向的完整项目，不仅参考 请可以任何人都请帮助我，我真的迷路了:(，提前感谢所有有兴趣帮助我的人:) Yaser
使用方法@WiiMaxx 时编辑
Structure backup=XamlClone(this.sched);
private Structure XamlClone(Structure s)
{
//First Step
// create a XAML string
string stCopie = XamlWriter.Save(s);
//Secound Step
// convert him back to an Object of YourTyp
return XamlReader.Load(XmlReader.Create(new StringReader(stCopie))) as Structure;
}
但内部period[,]被克隆为null
你能帮我吗@WiiMaxx
编辑 2.0
我还检查了这篇关于 3 种方法的深度克隆的文章，我认为我的代码中有循环引用，这就是为什么这对我不起作用
http://blog.nuclex-games.com/mono-dotnet/快速深度克隆/
结束编辑