ODP.NET

Hello,

I am trying to implement a generic repository as explained on the following link :-
http://www.asp.net/entity-framework/tutorials/implementing-the-repository-and-unit-of-work-patterns-in-an-asp-net-mvc-application

However, I do not have options for context.Set or context.Entry, which Ships with EF 4.1 - is there some other way of doing it ? Please see problem code in bold below:-

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data; // for EntityState
using System.Data.Entity;
using System.Linq.Expressions;  // for Expression command
using TasPOMark4.Models;

namespace TasPOMark4.Models
{
    public class GenericRepository<TEntity> where TEntity : class 
    { 
        internal TasEntities context; 
        internal DbSet<TEntity> dbSet; 
 
        public GenericRepository(TasEntities context) 
        { 
            this.context = context; 
            this.dbSet = context.Set<TEntity>();
        } 
 
        public IEnumerable<TEntity> Get( 
            Expression<Func<TEntity, bool>> filter = null, 
            Func<IQueryable<TEntity>, IOrderedQueryable<TEntity>> orderBy = null, 
            string includeProperties = "") 
        { 
            IQueryable<TEntity> query = dbSet; 
 
            if (filter != null) 
            { 
                query = query.Where(filter); 
            } 
 
            foreach (var includeProperty in includeProperties.Split 
                (new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries)) 
            { 
                query = query.Include(includeProperty); 
            } 
 
            if (orderBy != null) 
            { 
                return orderBy(query).ToList(); 
            } 
            else 
            { 
                return query.ToList(); 
            } 
        } 
 
        public virtual TEntity GetByID(object id) 
        { 
            return dbSet.Find(id); 
        } 
 
        public virtual void Insert(TEntity entity) 
        { 
            dbSet.Add(entity); 
        } 
 
        public virtual void Delete(object id) 
        { 
            TEntity entityToDelete = dbSet.Find(id); 
            Delete(entityToDelete); 
        } 
 
        public virtual void Delete(TEntity entityToDelete) 
        { 
            *//below Context.Entry does not exist*
            *//if (context.Entry(entityToDelete).State == EntityState.Detached)*
 
            *//if(context.ObjectStateManager.GetObjectStateEntry(entityToDelete) == EntityState.Detached)*
            *//{*                 dbSet.Attach(entityToDelete); 
            //} 
            dbSet.Remove(entityToDelete); 
        } 
 
        public virtual void Update(TEntity entityToUpdate) 
        { 
            dbSet.Attach(entityToUpdate); 
            
            *//context.Entry does not exist*
            *//context.Entry(entityToUpdate).State = EntityState.Modified;* 
            // GR skinning a cat (06/05/2011)
            context.ObjectStateManager.ChangeObjectState(entityToUpdate, EntityState.Modified);        } 
    } 
}

As you can see directly above, I have attempted to use context.ObjectStateManager.ChangeObjectState - is this correct ?

Many thanks in advance for any help someone can provide,

Graeme

Edited by: user4487499 on 06-May-2011 02:45

Edited by: user4487499 on 06-May-2011 02:46

Edited by: user4487499 on 06-May-2011 03:21