How to bind Form View data source using a normal objects?

Question

Hi there

I have a class like this:

ChartAccountAllocation allocation = new ChartAccountAllocation(Convert.ToInt64(ViewState["ChartAccountAllocationID"]));
frmvwMainProfileDetail.DataSource = allocation;

There is a bug on the second line and it saying that [System.InvalidOperationException] = {"Data source is an invalid type. It must be either an IListSource, IEnumerable, or IDataSource."}

I am using Page View btw. How do convert this?

Here's the class definition:

public class ChartAccountAllocation : Allocation
    {
        protected Int64 allocationTypeID;

        public ChartAccountAllocation()
        {

        }

        public ChartAccountAllocation(Int64 ID)
        {
            BrpAllocation entity = new BrpAllocation();
            if (entity.LoadByPrimaryKey(ID))
            {
                id = (Int64)entity.AllocationID;
                guid = entity.AllocationGUID.ToString();
                allocationTypeID = (Int64)entity.AllocationTypeID;
                code = entity.AllocationCode;
                name = entity.AllocationName;
                description = entity.AllocationDescription;
                createdUTCTimeStamp = (DateTime)entity.CreatedUTCTimeStamp;
                createdIP = entity.CreatedIP;
                createdBy = entity.CreatedBy.ToString();
                lastModifiedUTCTimeStamp = (DateTime)entity.LastModifiedUTCTimeStamp;
                lastModifiedIP = entity.LastModifiedIP;
                lastModifiedBy = entity.LastModifiedBy.ToString();                
                isActive = (Boolean)entity.IsActive;

                item = new ChartAccountAllocationItem();
                items = item.Get(id);
            }
        }

        public override List<AllocationItem> Items
        {
            get { return items; }
            set { items = value; }
        }

        public override Int64 ID
        {
            get { return id; }
            set { id = value; }
        }

        public override String GUID
        {
            get { return guid; }
            set { guid = value; }
        }

        ...

}

Thanks