using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Text;
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using System.Threading.Tasks;
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namespace EPAModelNameSpace
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{
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public static class DeepCopyClass
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{
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public static T DeepCopyByBin<T>(this T obj)
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{
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object retval;
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using (MemoryStream ms = new MemoryStream())
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{
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BinaryFormatter bf = new BinaryFormatter();
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//序列化成流
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bf.Serialize(ms, obj);
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ms.Seek(0, SeekOrigin.Begin);
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//反序列化成对象
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retval = bf.Deserialize(ms);
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ms.Close();
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}
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return (T)retval;
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}
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private static T CloneModel<T>(T oModel)
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{
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var oRes = default(T);
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var oType = typeof(T);
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//create new obj
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oRes = (T)Activator.CreateInstance(oType);
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//pass 1 property
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var lstPro = oType.GetProperties();
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foreach (var oPro in lstPro)
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{
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var oValue = oPro.GetValue(oModel, null);
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oPro.SetValue(oRes, DeepCopy(oValue), null);
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}
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var lstField = oType.GetFields();
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foreach (var oField in lstField)
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{
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var oValue = oField.GetValue(oModel);
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oField.SetValue(oRes, DeepCopy(oValue));
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}
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return oRes;
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}
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public static object DeepCopy(this object obj)
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{
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if (obj == null)
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return null;
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Type type = obj.GetType();
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if (type.IsValueType || type == typeof(string))
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{
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return obj;
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}
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else if (type.IsArray)
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{
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Type elementType = Type.GetType(
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type.FullName.Replace("[]", string.Empty));
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var array = obj as Array;
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Array copied = Array.CreateInstance(elementType, array.Length);
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for (int i = 0; i < array.Length; i++)
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{
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copied.SetValue(DeepCopy(array.GetValue(i)), i);
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}
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return Convert.ChangeType(copied, obj.GetType());
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}
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else if (type.IsClass)
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{
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object toret = Activator.CreateInstance(obj.GetType());
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FieldInfo[] fields = type.GetFields(BindingFlags.Public |
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BindingFlags.NonPublic | BindingFlags.Instance);
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foreach (FieldInfo field in fields)
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{
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object fieldValue = field.GetValue(obj);
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if (fieldValue == null)
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continue;
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field.SetValue(toret, DeepCopy(fieldValue));
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}
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return toret;
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}
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else
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throw new ArgumentException("Unknown type");
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}
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}
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}
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