HI all,

I need help in this scenrio defined below.

I am developing a web application and I have a class structure like
this.

namespace CS3Entities
{
    public class ItemImp
    {
        protected const string cogran_classid = "15KD5SE6B3P0";
        public ItemImp()
        {
              this.CreatedDate = DateTime.Now;
              this.UpdatedDate = DateTime.Now;
        }

        public virtual string ItemID { get; set; }

        #region child classes

        public virtual CS3Entities.ItemRestrict SelectedItemRestrict
{ get; set; }

        public virtual ICollection<CS3Entities.ItemRestrict>
ItemRestricts { get; set; }

        #endregion

        #region popup references

        public virtual ICollection<CS3Entities.Season>
SeasonLastPrograms { get; set; }

        public virtual ICollection<CS3Entities.SurveyTarget>
SurveyTargetItemIDs { get; set; }

        public virtual ICollection<CS3Entities.Volunteer>
VolunteerItemIDs { get; set; }

        public virtual ICollection<CS3Entities.Team> TeamPrograms
{ get; set; }

        public virtual ICollection<CS3Entities.TeamCopyCtrl>
TeamCopyCtrlItemIDTos { get; set; }

        public virtual ICollection<CS3Entities.Season>
SeasonNewPrograms { get; set; }

        public virtual ICollection<CS3Entities.TeamPaymentDtl>
TeamPaymentDtlItemIDs { get; set; }

        public virtual ICollection<CS3Entities.TeamCtrl>
TeamCtrlItemIDs { get; set; }

        public virtual ICollection<CS3Entities.EventItem>
EventItemItemIDs { get; set; }

        public virtual ICollection<CS3Entities.PaymentOption>
PaymentOptionItemIDs { get; set; }

        public virtual ICollection<CS3Entities.TeamPaymentCtrl>
TeamPaymentCtrlItemIDs { get; set; }

        public virtual ICollection<CS3Entities.TeamPaymentCtrl>
TeamPaymentCtrlTeamItemIDs { get; set; }

        public virtual ICollection<CS3Entities.PaymentDtl>
PaymentDtlItemIDs { get; set; }

        public virtual ICollection<CS3Entities.EventReg>
EventRegItemIDs { get; set; }

        #endregion

        public virtual string League { get; set; }

        public virtual string MoreInfoURL { get; set; }

        public virtual double TaxCode { get; set; }

        public virtual string Description { get; set; }

        [NotNullNotEmpty(Message = "Required")]
        public virtual string ShortDescription { get; set; }

        public virtual int HouseDiscount { get; set; }

        public virtual double LatePaymentFee { get; set; }

        public virtual double HouseDiscountAmt { get; set; }

        public virtual bool isArchive { get; set; }

        public virtual double EarlyPaymentDisc { get; set; }

        public virtual double InstallmentDeposit { get; set; }

        public virtual double UnitPrice { get; set; }

        public virtual int QtyDiscount { get; set; }

        public virtual int Interval { get; set; }

        public virtual string Category { get; set; }

        public virtual int Installment { get; set; }

        public virtual double QtyDiscountAmt { get; set; }

        public virtual string ImageURL { get; set; }

        [NotNullNotEmpty(Message = "Required")]
        public virtual IList<string> ItemType { get; set; }

        public virtual string AccountCode { get; set; }


        #region auditing fields

        public virtual string CreatedBy { get; set; }

        public virtual DateTime? CreatedDate { get; set; }

        public virtual string UpdatedBy { get; set; }

        public virtual DateTime? UpdatedDate { get; set; }

        public virtual long TranID { get; set; }

        #endregion
   }
}

Here I have a property named ItemType with the following signature :
                          public virtual IList<string> ItemType { get;
set; }

My mapping file is as below.

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
                   assembly="CS3Entities"
                   namespace="CS3Entities">

  <class name="Item" table="tItem" batch-size="10">
    <id name="ItemID" column="ItemID">
      <generator class="assigned"></generator>
    </id>

    <property name="League" column="League"  ></property>

    <property name="MoreInfoURL" column="MoreInfoURL"  ></property>

    <property name="TaxCode" column="TaxCode"  ></property>

    <property name="Description" column="Description"  ></property>

    <property name="ShortDescription" column="ShortDescription"  ></
property>

    <property name="HouseDiscount" column="HouseDiscount"  ></
property>

    <property name="LatePaymentFee" column="LatePaymentFee"  ></
property>

    <property name="HouseDiscountAmt" column="HouseDiscountAmt"  ></
property>

    <property name="isArchive" column="isArchive"  ></property>

    <property name="EarlyPaymentDisc" column="EarlyPaymentDisc"  ></
property>

    <property name="InstallmentDeposit" column="InstallmentDeposit"
></property>

    <property name="UnitPrice" column="UnitPrice"  ></property>

    <property name="QtyDiscount" column="QtyDiscount"  ></property>

    <property name="Interval" column="Interval"  ></property>

    <property name="Category" column="Category"  ></property>

    <property name="Installment" column="Installment"  ></property>

    <property name="QtyDiscountAmt" column="QtyDiscountAmt"  ></
property>

    <property name="ImageURL" column="ImageURL"  ></property>

    <property name="ItemType" column="ItemType"></property>

    <property name="AccountCode" column="AccountCode"  ></property>

    <property name="CreatedBy" column="CreatedBy" ></property>

    <property name="CreatedDate" column="CreatedDate" ></property>

    <property name="UpdatedBy" column="UpdatedBy" ></property>

    <property name="UpdatedDate" column="UpdatedDate" ></property>

  </class>
</hibernate-mapping>

The prpoerty ItemType is mapped as
 <property name="ItemType" column="ItemType"></property>

While running the application I get the following error.

Could not determine type for:
System.Collections.Generic.IList`1[[System.String, mscorlib,
Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]],
mscorlib, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089, for columns:
NHibernate.Mapping.Column(ItemType)

Please provide your views.

Thanks in advance.

Regards,
Deepraj D

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