/// <summary>
/// ascending quick sort by intime using recusrion
/// </summary>
/// <param name = "list" ></ param >
/// < returns ></ returns >
public List <VisitorsInformation> QuickSortByInTime(List <VisitorsInformation> list)
{
if (list.Count <= 1)
{
return(list);
}
Random random = new Random();
List <VisitorsInformation> less = new List <VisitorsInformation>();
List <VisitorsInformation> greater = new List <VisitorsInformation>();
int pos = random.Next(list.Count);
VisitorsInformation pivot = list[pos];
list.RemoveAt(pos);
foreach (VisitorsInformation item in list)
{
DateTime inTimeItem = DateTime.Parse(item.CheckInTime);
DateTime inTimePivot = DateTime.Parse(pivot.CheckInTime);
if (inTimeItem < inTimePivot)
{
less.Add(item);
}
else
{
greater.Add(item);
}
}
return(Concat(QuickSortByInTime(less), pivot, QuickSortByInTime(greater)));
}
public List <VisitorsInformation> Concat(List <VisitorsInformation> less, VisitorsInformation pivot, List <VisitorsInformation> greater)
{
List <VisitorsInformation> sorted = new List <VisitorsInformation>(less);
sorted.Add(pivot);
foreach (VisitorsInformation i in greater)
{
sorted.Add(i);
}
return(sorted);
}
private void ValidateAndSave()
{
List <VisitorsInformation> visitorList = new List <VisitorsInformation>();
VisitorsInformation visitor = new VisitorsInformation();
bool errorOccured = false;
visitor.ID = Int64.Parse(visitorID.Text);
visitor.EntryDate = dateToday.Text;
visitor.CheckInTime = CheckInTimePicker.Text;
if (CheckOutTimepicker.Visible)
{
visitor.CheckOutTime = CheckOutTimepicker.Text;
}
string fName = txtFirstName.Text;
if (MuseumManagementSystem.Validators.ValidateEmpty(fName))
{
errFirstName.Hide();
visitor.FirstName = fName;
}
else
{
errorOccured = true;
errFirstName.Show();
}
string lName = txtLastName.Text;
if (MuseumManagementSystem.Validators.ValidateEmpty(lName))
{
errLastName.Hide();
visitor.LastName = lName;
}
else
{
errorOccured = true;
errLastName.Show();
}
string address = txtAddress.Text;
if (MuseumManagementSystem.Validators.ValidateEmpty(address))
{
errAddress.Hide();
visitor.Address = address;
}
else
{
errorOccured = true;
errAddress.Show();
}
string contact = txtContactNo.Text;
if (MuseumManagementSystem.Validators.ValidateNumber(contact))
{
errContactNo.Hide();
visitor.ContactNo = Int64.Parse(contact);
}
else
{
errorOccured = true;
errContactNo.Show();
}
string mailAddress = txtEmailAddr.Text;
if (MuseumManagementSystem.Validators.ValidateEmailFormat(mailAddress))
{
errEmailAddress.Hide();
visitor.EmailAddress = mailAddress;
}
else
{
errorOccured = true;
errEmailAddress.Show();
}
string occupation = txtOccupation.Text;
if (MuseumManagementSystem.Validators.ValidateEmpty(occupation))
{
errOccupation.Hide();
visitor.Occupation = occupation;
}
else
{
errorOccured = true;
errOccupation.Show();
}
if (errorOccured == false)
{
visitorList.Add(visitor);
bool abc = CheckOutTimepicker.Visible;
if (CheckOutTimepicker.Visible)
{
WriteCheckoutDataToFile(visitorList);
}
else
{
WriteCheckInDataToFile(visitorList);
}
MessageBox.Show("Visitor successfully added.");
btnNewVisitor.PerformClick();
}
}
