c#深拷貝

標籤：

/// <summary>        /// 對象拷貝        /// </summary>        /// <param name="obj">被複製對象</param>        /// <returns>新對象</returns>        private object CopyOjbect(object obj) {            if (obj == null) {                return null;            }            Object targetDeepCopyObj;            Type targetType = obj.GetType();            //實值型別              if (targetType.IsValueType == true) {                targetDeepCopyObj = obj;            }            //參考型別               else {                targetDeepCopyObj = System.Activator.CreateInstance(targetType);   //建立引用對象                   System.Reflection.MemberInfo[] memberCollection = obj.GetType().GetMembers();                foreach (System.Reflection.MemberInfo member in memberCollection) {                    //拷貝欄位                    if (member.MemberType == System.Reflection.MemberTypes.Field)                    {                        System.Reflection.FieldInfo field = (System.Reflection.FieldInfo)member;                        Object fieldValue = field.GetValue(obj);                        if (fieldValue is ICloneable)                        {                            field.SetValue(targetDeepCopyObj, (fieldValue as ICloneable).Clone());                        }                        else                        {                            field.SetValue(targetDeepCopyObj, CopyOjbect(fieldValue));                        }                    }//拷貝屬性                    else if (member.MemberType == System.Reflection.MemberTypes.Property) {                        System.Reflection.PropertyInfo myProperty = (System.Reflection.PropertyInfo)member;                        MethodInfo info = myProperty.GetSetMethod(false);                        if (info != null) {                            try {                                object propertyValue = myProperty.GetValue(obj, null);                                if (propertyValue is ICloneable) {                                    myProperty.SetValue(targetDeepCopyObj, (propertyValue as ICloneable).Clone(), null);                                }                                else {                                    myProperty.SetValue(targetDeepCopyObj, CopyOjbect(propertyValue), null);                                }                            }                            catch (System.Exception ex) {                            }                        }                    }                }            }            return targetDeepCopyObj;        }

 下面是 StackOverflow 上的一個回答：

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); }}

 Notes:

Your class MUST be marked as [Serializable] in order for this to work.
Your source file must include the following code:
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;

僅供參考。
I‘ve seen a few different approaches to this, but I use a generic utility method as such:

 

c#深拷貝