Question

One Update below

I have the following class that derives from EqualityComparer<T> that I am (attempting) to persist using Fluent/NHibernate.

public class WeeklyGSFEntity : EqualityComparer<WeeklyGSFEntity>
{
    public virtual int IssueNumber { get; set; }
    public virtual int Severity { get; set; }
    public virtual char PainIndex { get; set; }
    public virtual Status Status { get; set; }
    public virtual int Month { get; set; }
    public virtual int Year { get; set; }
    public virtual DateTime DateCreated { get; set; }
    public virtual Region Region { get; set; }
    public virtual DateTime IncidentStart { get; set; }
    public virtual DateTime IncidentEnd { get; set; }
    public virtual int SRCount { get; set; }
    public virtual string AggravatingFactors { get; set; }
    public virtual string AggravatingFactorDescription { get; set; }
    public virtual TimeSpan MTTR
    {
        get
        {
            return (IncidentEnd - IncidentStart);
        }
    }

    public WeeklyGSFEntity()
    {
        Status = Status.New;
    }
    public override int GetHashCode() { ... }

    internal static bool StaticEqual(WeeklyGSFEntity x, WeeklyGSFEntity y) { ... }
    public static bool operator ==(WeeklyGSFEntity x, WeeklyGSFEntity y) { ... }
    public static bool operator !=(WeeklyGSFEntity x, WeeklyGSFEntity y) { ... }
    public override bool Equals(WeeklyGSFEntity x, WeeklyGSFEntity y) { ... }
    public override bool Equals(object obj) { ... }
    public override int GetHashCode(WeeklyGSFEntity obj) { ... }
 }

public enum Status { ... }
public enum Region { ... }

Now, this worked last week. Now when I go to save any entity, I get this message:

 The following types may not be used as proxies:
 Core.Models.WeeklyGSFEntity: method IndexOf should be 'public/protected virtual' or 'protected internal virtual'
 Core.Models.WeeklyGSFEntity: method LastIndexOf should be 'public/protected virtual' or 'protected internal virtual'

As you can see, there are no IndexOf or LastIndexOf methods… 🙂 I’ve tried to override them but they don’t exist to override in the first place!

Any ideas?

Update The First

So I dug into the IL and there is no sign of a method IndexOf or LastIndexOf. Now, before all this happened I did create a new class about conflicts which had a Collection of my WeeklyGSFEntities. Now this collection would have IndexOf and LastIndexOf methods however, I excluded both the mapping and the class from the project…

Answer 1

Okay so instead of deriving from EqualityComparer<WeeklyGSFEntity> I implemented IEqualityComparer<WeeklyGSFEntity>.
The issue disappeared…