I met a problem when I get Entities form db1 and append them into db2.The exception is :
Autodesk.AutoCAD.Runtime.Exception: eInvalidInput
Autodesk.AutoCAD.Runtime.Interop.ThrowExceptionForErrorStatus(Int32 errorStatus)
Autodesk.AutoCAD.DatabaseServices.BlockTableRecord.AppendEntity(Entity entity)
'AppendEntity ' entities that getting from Database1 into Database2 throw the exveption.
I developed in vs.net 2003 and autocad2006,thanks a lot!