/// <summary>Determines whether the given status name is valid for the status with the given ID.</summary>
/// <param name="statusId">The status ID.</param>
/// <param name="newStatusName">New name for the status.</param>
/// <returns><c>true</c> if the given status name is valid for the status with the given ID; otherwise, <c>false</c>.</returns>
private bool IsStatusNameUnique(int?statusId, string newStatusName)
{
var newStatusId = ApplicationStatus.GetStatusId(newStatusName, this.PortalId);
return(!newStatusId.HasValue || (statusId.HasValue && newStatusId.Value == statusId.Value));
}