public String GenerateTeacherId()
{
string latestTeacherId = teacherDAO.GetLatestTeacherId();
StringBuilder teacherId = new StringBuilder();
string yearNow = DateTime.Now.Year.ToString();
int con = 1;
string c = String.Empty;
if (!latestTeacherId.Equals("none"))
{
string latestYear = latestTeacherId.Substring(0, 4);
string control = latestTeacherId.Substring(4, 3);
con = Int32.Parse(control);
teacherId.Append(yearNow);
if (latestYear.Equals(yearNow))
{
con++;
c = con.ToString();
if (c.Length == 1)
{
c = "00" + c;
}
else if (c.Length == 2)
{
c = "0" + c;
}
}
else
{
c = "00" + con.ToString();
}
teacherId.Append(c);
}
else
{
teacherId.Append(yearNow);
c = "00" + con.ToString();
teacherId.Append(c);
}
return(teacherId.ToString());
}