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POExtend System.Data.Objects 3.5 methods for 4.0 (such as IObjectSet, CreateObjectSet,ContextOptions
 

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  1. POExtend System.Data.Objects 3.5 methods for 4.0 (such as IObjectSet, CreateObjectSet,ContextOptions
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    <p>I am trying to extend the System.Data.Objects 3.5 version to include some System.Data.Objects .Net 4.0 methods (such as IObjectSet, CreateObjectSet,ContextOptions). I am forced to target 3.5 in a Sharepoint 2010 project, using EF v 1. My Repository was built in .Net 4.0, shown below. How can I either correct this to work in 3.5, or extend the System.Data.Objects 3.5 class so that the new 4.0 methods will be consumed:</p> <pre><code>using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Data.Objects; using System.Linq.Expressions; using System.Data; using System.Data.Objects.DataClasses; using Workflowportal_LINQDAL.Repository.Interface; using Workflowportal_LINQDAL.Repository.Specification; namespace Workflowportal_LINQDAL.Repository.Repository { public class Repository&lt;TEntity&gt; : IRepository&lt;TEntity&gt; where TEntity : class { private ObjectContext _context; private readonly IObjectSet&lt;TEntity&gt; _objectSet; public Repository(ObjectContext context) { _context = context; _objectSet = _context.CreateObjectSet&lt;TEntity&gt;(); //_context.ContextOptions.LazyLoadingEnabled = true; Default! } public Repository(ObjectContext context, bool lazyLoading) { _context = context; _objectSet = _context.CreateObjectSet&lt;TEntity&gt;(); _context.ContextOptions.LazyLoadingEnabled = lazyLoading; } public void SaveChanges() { _context.SaveChanges(); } //public void SaveChanges(SaveOptions options) //{ // _context.SaveChanges(options); //} public void AcceptAllChanges() { _context.AcceptAllChanges(); } public void Add(TEntity entity) { if (entity == null) { throw new ArgumentNullException("entity"); } _objectSet.AddObject(entity); } public void Edit(TEntity entity) { _objectSet.Attach(entity); _context.ObjectStateManager.ChangeObjectState(entity, EntityState.Modified); } public void Delete(TEntity entity) { if (entity == null) { throw new ArgumentNullException("entity"); } _objectSet.DeleteObject(entity); } public void Delete(Expression&lt;Func&lt;TEntity, bool&gt;&gt; predicate) { var records = Find(predicate); foreach (var record in records) { Delete(record); } } public void Delete(ISpecification&lt;TEntity&gt; specification) { throw new NotImplementedException(); } public void DeleteRelatedEntities(TEntity entity) { if (entity == null) { throw new ArgumentNullException("entity"); } var releatedEntities = ((IEntityWithRelationships)entity).RelationshipManager.GetAllRelatedEnds().SelectMany( e =&gt; e.CreateSourceQuery().OfType&lt;TEntity&gt;()).ToList(); foreach (var releatedEntity in releatedEntities) { _objectSet.DeleteObject(releatedEntity); } _objectSet.DeleteObject(entity); } public IEnumerable&lt;TEntity&gt; GetAll() { return _objectSet.AsEnumerable(); } public IQueryable&lt;TEntity&gt; GetAllQuery() { return _objectSet.AsQueryable(); } public IEnumerable&lt;TEntity&gt; GetAllPaged(int page, int pageSize) { return _objectSet.AsEnumerable().Skip(pageSize).Take(page); } public IEnumerable&lt;TEntity&gt; Find(Expression&lt;Func&lt;TEntity, bool&gt;&gt; predicate) { return _objectSet.Where(predicate).AsEnumerable(); } public IQueryable&lt;TEntity&gt; FindQuery(Expression&lt;Func&lt;TEntity, bool&gt;&gt; predicate) { return _objectSet.Where(predicate).AsQueryable(); } public IEnumerable&lt;TEntity&gt; Find(ISpecification&lt;Func&lt;TEntity, bool&gt;&gt; specification) { throw new NotImplementedException(); } public IEnumerable&lt;TEntity&gt; FindPaged(int page, int pageSize, Expression&lt;Func&lt;TEntity, bool&gt;&gt; predicate) { return _objectSet.Where(predicate).Skip(pageSize).Take(page).AsEnumerable(); } public TEntity Single(Expression&lt;Func&lt;TEntity, bool&gt;&gt; predicate) { return _objectSet.SingleOrDefault(predicate); } public TEntity Single(ISpecification&lt;Func&lt;TEntity, bool&gt;&gt; specification) { throw new NotImplementedException(); } public TEntity First(Expression&lt;Func&lt;TEntity, bool&gt;&gt; predicate) { return _objectSet.FirstOrDefault(predicate); } public TEntity First(ISpecification&lt;Func&lt;TEntity, bool&gt;&gt; specification) { throw new NotImplementedException(); } public int Count() { return _objectSet.Count(); } public int Count(Expression&lt;Func&lt;TEntity, bool&gt;&gt; criteria) { return _objectSet.Count(criteria); } public int Count(ISpecification&lt;TEntity&gt; specification) { throw new NotImplementedException(); } #region IDisposable public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } protected virtual void Dispose(bool disposing) { if (!disposing) return; if (_context == null) return; _context.Dispose(); _context = null; } #endregion } } </code></pre>
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