Extending a column in LineItems and OrderForms

hi ,

getting below exception after adding new column 'leadtimewindow' lineitem , orderforms in cs. did xml mappings , executed generated sql scripts using ordermapping.exe tool.  for new users there no problem, existing users while reading basket getting error messages. generated strong name snk dll no use. 

type : system.runtime.serialization.serializationexception, mscorlib, version=2.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089

message : exception has been thrown target of invocation. message : member 'leadtimewindow' not found.

timestamp: 7/31/2015 11:36:36 am

message: handlinginstanceid: d5bea547-e05e-4fbf-9530-74ce4adaa46b
exception of type 'system.reflection.targetinvocationexception' occurred , caught.
-------------------------------------------------------------------------------------------
07/31/2015 17:06:36
type : system.reflection.targetinvocationexception, mscorlib, version=2.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089
message : exception has been thrown target of invocation.
source : mscorlib
link : 
data : system.collections.listdictionaryinternal
targetsite : void _serializationinvoke(system.object, system.signaturestruct byref, system.runtime.serialization.serializationinfo, system.runtime.serialization.streamingcontext)
stack trace :    at system.runtimemethodhandle._serializationinvoke(object target, signaturestruct& declaringtypesig, serializationinfo info, streamingcontext context)
   at system.reflection.runtimeconstructorinfo.serializationinvoke(object target, serializationinfo info, streamingcontext context)
   at system.runtime.serialization.objectmanager.completeiserializableobject(object obj, serializationinfo info, streamingcontext context)
   at system.runtime.serialization.objectmanager.fixupspecialobject(objectholder holder)
   at system.runtime.serialization.objectmanager.dofixups()
   at system.runtime.serialization.formatters.binary.objectreader.deserialize(headerhandler handler, __binaryparser serparser, boolean fcheck, boolean iscrossappdomain, imethodcallmessage methodcallmessage)
   at system.runtime.serialization.formatters.binary.binaryformatter.deserialize(stream serializationstream, headerhandler handler, boolean fcheck, boolean iscrossappdomain, imethodcallmessage methodcallmessage)
   at system.runtime.serialization.formatters.binary.binaryformatter.deserialize(stream serializationstream)
   at microsoft.commerceserver.runtime.orders.basketgrouploader.loadbasketfromdatarow(datarow row, datacolumncollection columns, hashtable reflectioncachemap, iformatter formatter)
   at microsoft.commerceserver.runtime.orders.basketgrouploader.loadbasketfromdatatable(datatable datatable, ordergroupcollection ogc)
   at microsoft.commerceserver.runtime.orders.basketgrouploader.load(string storedprocname, listdictionary sqlparameters)
   at microsoft.commerceserver.runtime.orders.ordercontext.getbasket(guid userid, string basketname)
   at abc.businesslayer.orderfacade.getbasket(guid userid, string basketname) in 

additional info:

machinename : win-0el4by3zfpe
timestamp : 7/31/2015 11:36:36 am
fullname : microsoft.practices.enterpriselibrary.exceptionhandling, version=5.0.414.0, culture=neutral, publickeytoken=31bf3856ad364e35
appdomainname : 989dda47-1-130828160612025150
threadidentity : win-0el4by3zfpe\administrator
windowsidentity : win-0el4by3zfpe\administrator
inner exception
---------------
type : system.runtime.serialization.serializationexception, mscorlib, version=2.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089
message : member 'leadtimewindow' not found.
source : gkelite.ordersystemextension
help link : 
data : system.collections.listdictionaryinternal
targetsite : void .ctor(system.runtime.serialization.serializationinfo, system.runtime.serialization.streamingcontext)
stack trace :    at gkelite.ordersystemextension.extendedlineitem..ctor(serializationinfo info, streamingcontext context) in c:\users\administrator\desktop\postprodcr\gkelite\gkelite.ordersystemextension\extendedlineitem.cs:line 205


thanks,

sriram

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vs

Commerce Server  >  Commerce Server 2009