EditableRootListBase - The Correct Way

Pieter posted on Tuesday, June 16, 2009

Hi All,

Is this the correct way to implement an EditableRootListBase in version 3.6? :

using System;
using System.Linq;
using Csla;
using Csla.Data;

[Serializable()]
public class Customers : EditableRootListBase<Customer>
{
    #region  Business Methods
    protected override object AddNewCore()
    {
        Customer item = Customer.NewCustomer;
        Add(item);
        return item;
    }
    #endregion

    #region  Factory Methods
   
    public static Customers GetList()
    {
        return DataPortal.Fetch<Customers>();
    }

    private Customers()
    {
        this.AllowEdit = true;
        this.AllowNew = true;
        this.AllowRemove = true;
    }

    #endregion

    #region  Data Access

    private void DataPortal_Fetch()
    {

        using (var mgr = ContextManager<Northwind.DALLinq.NorthwindDataContext>
                   .GetManager(Northwind.DALLinq.Database.Northwind, false))
        {
            RaiseListChangedEvents = false;

            this.AddRange(
                from row in mgr.DataContext.Customers
                select Customer.GetCustomer(row.CustomerID)
            );

            RaiseListChangedEvents = true;
        }//using


    }

    #endregion
}

rfcdejong replied on Tuesday, June 16, 2009

It looks fine to me, ignoring the data access part.
And assuming u ment to use the BusinessListBase<T, C> as base class.

Pieter replied on Wednesday, June 17, 2009

Can you please give an example of the correct data access part and what you mean by BusinessListBase<T, C> as base class ?

Thanks.

rfcdejong replied on Wednesday, June 17, 2009

Sorry for confusing you, u could use a EditableRootListBase as well (if u want to edit directly in the root).

I didn't look at your data access, it could be working.