public void Generate(int TotalNumEntries)
{
//Generating random numbers
Random random = new Random();
//First ticket are never under 500
int RandomTicketID = 500;
string fileName_SerialNumbers = "TicketDATA/SerialNumbers.txt";
//Checks directory excists
Directory.CreateDirectory(Path.GetDirectoryName(fileName_SerialNumbers));
//Findes file with vaild ID
var SerialNumbersFile = new StreamWriter(new FileStream(fileName_SerialNumbers, FileMode.Create), Encoding.UTF8);
SerialNumbersFile.WriteLine("EntryNumber \t TicketID");
for (int i = 0; i < TotalNumEntries; i++)
{
//Adds randomnumber to last number
RandomTicketID += random.Next(11, 22);
//writes the ID to stream
SerialNumbersFile.WriteLine(i + "\t\t" + RandomTicketID);
//Create New object with input
SubmissionDATA p = new SubmissionDATA(i, RandomTicketID);
//saves the object file
p.SaveToFile();
}
//Close stream
SerialNumbersFile.Close();
Console.Out.WriteLine("There have been generated new tickets .");
}
//Gets object from a file.
public void LoadFromFile()
{
try
{
SubmissionDATA SubmissionFromFile = new SubmissionDATA();
//Opens a file stream for entry number
using (FileStream strm = new FileStream("TicketDATA/Entry" + EntryNumber + ".dat", FileMode.OpenOrCreate))
{
//loads the object from the file.
IFormatter fmt = new BinaryFormatter();
SubmissionFromFile = fmt.Deserialize(strm) as SubmissionDATA;
//Overwrites information from the file to obejct
FirstName = SubmissionFromFile.FirstName;
LastName = SubmissionFromFile.LastName;
Phone = SubmissionFromFile.Phone;
Email = SubmissionFromFile.Email;
AreTaken = SubmissionFromFile.AreTaken;
TicketID = SubmissionFromFile.TicketID;
}
}
//if the file doesn't excist a new version will be created.
catch (System.Runtime.Serialization.SerializationException)
{
if (TicketID == 0)
{
Random random = new Random();
TicketID = random.Next(1, 2000);
}
SaveToFile();
Console.Error.WriteLine("ERROR!!! File not fund: Entry{0].dat, new version has been created", EntryNumber);
}
}