static void readData()
{
if (File.Exists(path))
{
string[] lines = System.IO.File.ReadAllLines(path);
//string line = string.Empty;
PersonData p = null;
PhoneData ph = null;
int i = 1;
for (int j = 0; j < lines.Count() ;j++ )
{
string line = lines[j];
string[] spline = line.Split(' ');
//if a person
if (spline.Count() > 1)
{
//add old one
if (p != null)
{
PersonData1.Add(p);
}
//is a person
p = new PersonData();
p.PersonNo = Convert.ToInt16(spline[0]);
p.Name = spline[1];
i = 1;
}
else
{
//is a phone no
p.CountPhoneNo++;
ph = new PhoneData();
ph.no = p.PersonNo;
ph.PhoneNumber = spline[0];
ph.phoneOrder = i;
i= i+1;
PhoneData1.Add(ph);
//insert into hash table
InsertHashTable(ph);
if (j == lines.Count() - 1)
{
//add old one
if (p != null)
{
PersonData1.Add(p);
}
}
}
}
}
}
static void insert()
{
bool m = false;
string x = string.Empty;
string newList = "The new list is:";
do
{
Console.Write("Enter a phone number to be inserted: ");
x = Console.ReadLine();
x = x.Trim();
int y = x.Length;
if (y > 10)
Console.WriteLine("Error - the number is too long");
else if (y < 10)
Console.WriteLine("Error - the number is too short");
else
{
m = true;
foreach (PhoneData item in PhoneData1)
{
if (String.Compare(item.PhoneNumber, x) == 0)
{
Console.WriteLine("Error - the phone number is already in this phone book.");
m = false;
}
}
}
} while (m == false);
Console.WriteLine("The list is:");
showList(null);
//Show for Enter input new person or not
Console.Write("Enter the person id to append the phone number or 'n' for new phone number :");
string inputNP = Console.ReadLine();
int no;
//if it new person
if ("nN".Contains(inputNP))
{
Console.Write("Enter the name (8 Characters maximum) :");
string inputName = Console.ReadLine();
while (inputName.Length > 8)
{
Console.Write("Error name is more that 8 Characters, Please Enter new name:");
inputName = Console.ReadLine();
}
//insert new name
PersonData p = new PersonData();
p.PersonNo = PersonData1.Count + 1;
p.Name = inputName;
p.CountPhoneNo++;
PersonData1.Add(p);
//insert new phone no. to list
PhoneData ph = new PhoneData();
ph.no = p.PersonNo;
ph.PhoneNumber = x;
ph.phoneOrder = 1;
PhoneData1.Add(ph);
//add key to hashtable
InsertHashTable(ph);
//print new list
Console.WriteLine(newList);
showList(null);
}
else if (int.TryParse(inputNP, out no) == true)
{
int noIndex = PersonData1.FindIndex(i => i.PersonNo == no);
//checking is it full 5 phone no for that person
//if it full show error and input the replace no for replace that phone no
if (PersonData1[noIndex].CountPhoneNo == 5)
{
Console.Write(PersonData1[noIndex].Name + " has 5 phone numbers already,"+Environment.NewLine+" enter replaced number or any key for cancel:");
string inputRC = Console.ReadLine();
int tryParseInputRC;
//if not cancel replace that phone no to another one
if (int.TryParse(inputRC, out tryParseInputRC))
{
//replace and remove key of that phone no. from hash table
//int indexperson = PersonData1.FindIndex(i => i.PersonNo == PersonData1[no].PersonNo);
PhoneData ph = new PhoneData();
ph.no = no;
int indexphone = PhoneData1.FindIndex(i => i.phoneOrder == tryParseInputRC);
ph.PhoneNumber = PhoneData1[indexphone].PhoneNumber;
ph.phoneOrder = tryParseInputRC;
PhoneData ph2 = new PhoneData();
ph2.no = ph.no;
ph2.PhoneNumber = x;
ph2.phoneOrder = ph.phoneOrder;
PhoneData1[indexphone] = ph2;
//delete hash table data
DeleteHashTable(ph);
//insert new hash table data
InsertHashTable(ph2);
//show new list
Console.WriteLine(newList);
showList(null);
}
}
else
{
Console.Write("Enter replaced number or 'n' for new phone number:");
string inputPHID = Console.ReadLine();
if ("nN".Contains(inputPHID))
{
//add new phone number and position
PhoneData ph = new PhoneData();
ph.phoneOrder = PersonData1[noIndex].CountPhoneNo + 1;
ph.no = no;
ph.PhoneNumber = x;
PhoneData1.Add(ph);
PersonData1[noIndex].CountPhoneNo++;
//increase phone item in person
int indexPer = PersonData1.FindIndex(i => i.PersonNo == no);
//insert phone no to hash table
InsertHashTable(ph);
}
else
{
int phoneN;
bool isNumberic = int.TryParse(inputPHID, out phoneN);
//ask to replace phone no.
if (phoneN <= PersonData1[noIndex].CountPhoneNo && phoneN > 0)
{
int j = 0;
for (int i = 0; i < PhoneData1.Count; i++)
{
if (PhoneData1[i].phoneOrder == phoneN && PhoneData1[i].no == no)
{
j = i;
break;
}
}
string pp1;
string p1 = PhoneData1[j].PhoneNumber;
pp1 = p1;
p1 = p1.Substring(0, 3) + " " + p1.Substring(3, 3) + " " + p1.Substring(6, 4);
string p2 = x;
p2 = p2.Substring(0, 3) + " " + p2.Substring(3, 3) + " " + p2.Substring(6, 4);
Console.Write("Do you want to replace " + PersonData1[noIndex].Name + "'s contact " + p1 + " with " + p2 +Environment.NewLine+ " ('y' for yes, any key to cancel)? :");
string checkR = Console.ReadLine();
if ("yY".Contains(checkR))
{
//replace that phone no.
PhoneData ph1 = new PhoneData();
ph1.no = no;
ph1.PhoneNumber = x.Trim();
ph1.phoneOrder = phoneN;
PhoneData1[j] = ph1;
PhoneData ph2 = new PhoneData();
ph2.no = no;
ph2.PhoneNumber = pp1;
ph2.phoneOrder = phoneN;
//remove hash table about that phone no.
DeleteHashTable(ph2);
//insert new hash table of this phone no.
InsertHashTable(ph1);
}
}
else
{
//insert phone no in next position
PhoneData ph = new PhoneData();
ph.PhoneNumber = x;
ph.no = no;
ph.phoneOrder = PersonData1[noIndex].CountPhoneNo + 1;
PhoneData1.Add(ph);
//insert to hash table
InsertHashTable(ph);
}
}
//print new list
Console.WriteLine(newList);
showList(null);
}
}
}
