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    <p>I also wanted to automate the population of audit fields on my MVC 4 / Entity Framework 5 application. I used information from @Eranga's answer and this blog: <a href="http://lourenco.co.za/blog/2013/07/audit-trails-concurrency-and-soft-deletion-with-entity-framework/" rel="nofollow noreferrer">http://lourenco.co.za/blog/2013/07/audit-trails-concurrency-and-soft-deletion-with-entity-framework/</a> to make this approach work for me with Ninject - posting in case valuable to anyone else:</p> <p>Created an interface and abstract class: </p> <pre><code>public interface IAuditableEntity { DateTime? CreatedDate { get; set; } string CreatedBy { get; set; } DateTime? LastModifiedDate { get; set; } string LastModifiedBy { get; set; } } public abstract class AuditableEntity:IAuditableEntity { public DateTime? CreatedDate { get; set; } public string CreatedBy { get; set; } public DateTime? LastModifiedDate { get; set; } public string LastModifiedBy { get; set; } } </code></pre> <p>Used them in my entities:</p> <pre><code>public class DataEntity : AuditableEntity { public int DataEntityID { get; set; } ... } </code></pre> <p>Added a constructor to MyDbContext which accepted the HttpContext and overrode SaveChanges:</p> <pre><code>public EFDbContext(HttpContext context) { _context = context; } public HttpContext _context { get; private set; } public override int SaveChanges() { DateTime currentDateTime = DateTime.Now; foreach (var auditableEntity in ChangeTracker.Entries&lt;IAuditableEntity&gt;()) { if (auditableEntity.State == EntityState.Added || auditableEntity.State == EntityState.Modified) { auditableEntity.Entity.LastModifiedDate = currentDateTime; switch (auditableEntity.State) { case EntityState.Added: auditableEntity.Entity.CreatedDate = currentDateTime; auditableEntity.Entity.CreatedBy = _context.User.Identity.Name; break; case EntityState.Modified: auditableEntity.Entity.LastModifiedDate = currentDateTime; auditableEntity.Entity.LastModifiedBy = _context.User.Identity.Name; if (auditableEntity.Property(p =&gt; p.CreatedDate).IsModified || auditableEntity.Property(p =&gt; p.CreatedBy).IsModified) { throw new DbEntityValidationException(string.Format("Attempt to change created audit trails on a modified {0}", auditableEntity.Entity.GetType().FullName)); } break; } } } return base.SaveChanges(); } </code></pre> <p>Finally - need to have a DbContext per request and pass HttpContext as below based on this answer: <a href="https://stackoverflow.com/a/3617961/1803682">https://stackoverflow.com/a/3617961/1803682</a> - note that as <code>MyDbContext</code> is now Request scope, the Repositories must be as well.</p> <pre><code>kernel.Bind&lt;IDataRepository&gt;() .To&lt;EFDataRepository&gt;() .InRequestScope(); kernel.Bind&lt;MyDbContext&gt;().ToSelf() .InRequestScope() .WithConstructorArgument("context", ninjectContext=&gt;HttpContext.Current); </code></pre>
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