/// <summary>
/// Returns the number of failed access attempts for the user
/// </summary>
/// <param name="manager"></param>
/// <param name="userId"></param>
/// <returns></returns>
public static int GetAccessFailedCount <TUser, TKey>(this UserManager <TUser, TKey> manager, TKey userId)
where TKey : IEquatable <TKey>
where TUser : class, IUser <TKey>
{
if (manager == null)
{
throw new ArgumentNullException("manager");
}
return(AsyncHelper.RunSync(() => manager.GetAccessFailedCountAsync(userId)));
}