Hi,

Can I create myBox class that inherit from Box class? If yes, how to do it?

You are right. I am planning to add myBox programming. I've try to define it. But it seems that I can not get it back when I deserialize it. Could you please help?

Thanks for your useful information. It will be great if an example is provided.

Well here is some sample from FC.NET source code of the Box class:

public override int getClassId()
{
   return 3;
}

public override void saveTo(BinaryWriter writer, PersistContext ctx)
{
   base.saveTo(writer, ctx);

   writer.Write(Expanded);
   writer.Write(Expandable);
   writer.Write((long)enabledHandles);
   writer.Write((int)style);

   // etc
}

public override void loadFrom(BinaryReader reader, PersistContext ctx)
{
   base.loadFrom(reader, ctx);

   setExpanded(reader.ReadBoolean());
   setExpandable(reader.ReadBoolean());
   enabledHandles = (Handles)reader.ReadInt64();
   intStyle = reader.ReadInt32();

   // etc
}

And FlowChart.createObj(int clsId):

public IPersists createObj(int clsId)
{
   switch (clsId)
   {
   case 2:
     return new Arrow(this);
   case 3:
     return new Box(this);

   // etc
}

Thanks to you. I'll try it.