MethodStatus.cs

Example.cs

public void Delete(IMyEntity myEntity, out MethodStatus status)
{
    var eventArgs = new MyEventArgs<IMyEntity>(myEntity);

    if (myEntity.CanDelete()) // Some arbitrary check before deleting
    {
        status = MethodStatus.Error("Entity can't be deleted");
        return;
    }

    using (var uow = _uowProvider.Create())
    using (var repo = _repositoryFactory.CreateMyEntityRepository(uow))
    {
        OnDeleting(this, eventArgs);

        if (eventArgs.Cancel)
        {
            status = MethodStatus.Cancelled();
            return;
        }
        
        repo.Delete(myEntity);

        uow.Complete();
    }

    OnDeleted(this, eventArgs);

    status = MethodStatus.Ok();
}

MethodStatus.cs

public struct MethodStatus
{
    public int Code { get; private set; }

    public string Message { get; private set; }

    private MethodStatus(int code, string msg)
    {
        Code = code;
        Message = msg;
    }

    public bool IsOk => Code == MethodStatusCode.Ok;

    public static MethodStatus Ok(string msg = null)
    {
        return new MethodStatus(MethodStatusCode.Ok, msg);
    }

    public static MethodStatus Cancelled(string msg = null)
    {
        return new MethodStatus(MethodStatusCode.Cancelled, msg);
    }

    public static MethodStatus Error(string msg = null)
    {
        return new MethodStatus(MethodStatusCode.Error, msg);
    }
}

MethodStatusCode.cs

public static class MethodStatusCode
{
    public static int Ok = 200;
    public static int Cancelled = 300;
    public static int Error = 400;
}