private bool CanRegister(object parameter)
 {
     PatientMonitoringService.PatientDbQueryClient client = new PatientMonitoringService.PatientDbQueryClient();
     return(!client.IsWardExist(wardDataModel.WardNumber));
 }
 private bool CanUpdate(object parameter)
 {
     PatientMonitoringService.PatientDbQueryClient client = new PatientMonitoringService.PatientDbQueryClient();
     return(client.IsBedExist(bedDataModel.BedNumber) && client.IsWardExist(bedDataModel.WardNumber));
 }