C#自定义序列化ISerializable的实现方法

本文实例讲述了c#自定义序列化iserializable的实现方法。分享给大家供大家参考。具体实现方法如下：

[serializable]
public class baseobject
{
  [optionalfield]
  private string _str = "i am baseobject";
}
[serializable]
public class testobject : baseobject, iserializable
{
  int a;
  string strname = "";
  color c = color.red;
  datatable _dtcolors = null;
  [optionalfield]
  arraylist list = new arraylist();
  [optionalfield]
  list<int> list1 = new list<int>();
  [optionalfield]
  dictionary<int, string> dic = new dictionary<int, string>();
  //当实现iserializable接口时，如果该构造函数不存在，则会引发一个serializationexception异常
  //该特性表示，该方法只允许序列化器调
  [securitypermissionattribute(securityaction.demand, serializationformatter = true)]
  protected testobject(serializationinfo info, streamingcontext context)
  {
   #region 如果基类也实现了iserializable接口，则序列化器会自动调用基类的该构造函数，就不需要本段代码
   type basetype = this.gettype().basetype;
   memberinfo[] mi = formatterservices.getserializablemembers(basetype, context);
   for (int i = 0; i < mi.length; i++)
   {
    //由于addvalue不能添加重名值，为了避免子类变量名与基类变量名相同，将基类序列化的变量名加上基类类名
    fieldinfo fi = (fieldinfo)mi[0];
    object objvalue = info.getvalue(basetype.fullname + "+" + fi.name, fi.fieldtype);
    fi.setvalue(this, objvalue);
   }
   #endregion
   a = info.getint32("a");
   strname = info.getstring("strname");
   c = (color)info.getvalue("c", typeof(color));
   _dtcolors = (datatable)info.getvalue("_dtcolors", typeof(datatable));
   list = (arraylist)info.getvalue("list", typeof(arraylist));
   list1 = (list<int>)info.getvalue("list1", typeof(list<int>));
   dic = (dictionary<int, string>)info.getvalue("dic", typeof(dictionary<int, string>));
  }
  public testobject()
  {
   a = 100;
   strname = "daps";
   initcolortable();
   list1.add(10);
   list1.add(20);  
  }
  #region iserializable 成员
  [securitypermissionattribute(securityaction.demand, serializationformatter =true)]
  void iserializable.getobjectdata(serializationinfo info, streamingcontext context)
  {
   info.addvalue("a", a);
   info.addvalue("strname", strname);
   info.addvalue("c", c);
   info.addvalue("_dtcolors", _dtcolors);
   info.addvalue("list", list);
   info.addvalue("list1", list1);
   info.addvalue("dic", dic);
   type basetype = this.gettype().basetype;
   memberinfo[] mi = formatterservices.getserializablemembers(basetype, context);
   for (int i = 0; i < mi.length; i++)
   {
    //由于addvalue不能添加重名值，为了避免子类变量名与基类变量名相同，将基类序列化的变量名加上基类类名
    info.addvalue(basetype.fullname + "+" + mi[i].name, ((fieldinfo)mi[i]).getvalue(this));
   }
  }
  #endregion
}

希望本文所述对大家的c#程序设计有所帮助。