C#

[Serializable]<br />
	public class Siren	: IDataSourceItem<br />
	{<br />
		uint		        _id;<br />
		string			_Name;<br />
		int			_InventoryNumber;<br />
		string			_SirenType;<br />
		string			_LocationStreet;<br />
		string			_LocationNumber;<br />
		string			_Remark;<br />
		DateTime		_LastDiagnostic;<br />
		DateTime		_NextDiagnostics;<br />
        .<br />
        .<br />
        .<br />
        .<br />
        .<br />
        .<br />
        }

[Serializable]<br />
	public class SirenGroup :  System.Collections.CollectionBase,IDataSourceItem<br />
	{<br />
		public SirenGroup(){}<br />
<br />
		public int Add(Siren siren)<br />
		{<br />
			return this.InnerList.Add(siren);<br />
		}<br />
<br />
		public void Insert(int index,Siren siren)<br />
		{<br />
			InnerList.Insert(index,siren);<br />
		}<br />
<br />
		public void Remove(Siren siren)<br />
		{<br />
			InnerList.Remove(siren);<br />
		}<br />
<br />
		public new void RemoveAt(int index)<br />
		{<br />
			InnerList.RemoveAt(index);<br />
		}<br />
         .<br />
         .<br />
         .<br />
         }

BinaryFormatter binaryFormatter = new BinaryFormatter();<br />
   System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(100);<br />
   <br />
			   <br />
   try<br />
   {<br />
	binaryFormatter.Serialize(memoryStream,sirenGroup);<br />
   }<br />
   catch (System.IO.IOException exc)<br />
   {<br />
	Utilities.WriteLog.WriteError(exc);<br />
   }

try<br />
{<br />
   System.Type typeObjectType = typeof(Definitions.SirenGroup) ;<br />
  if(typeObjectType.IsSerializable)<br />
  object sirenGroup = <br />
            System.Convert.ChangeType(binaryFormatter.Deserialize(memoryStream),typeObjectType);<br />
}<br />
catch (System.Runtime.Serialization.SerializationException exc)<br />
{<br />
	Utilities.WriteLog.WriteError(exc);<br />
}