private void btnAdd_Click(object sender, RoutedEventArgs e)
{
string formatfix = string.Empty;
int CodeNumbers, Trimester, TotalLectures, TotalPracticals;
string CodeNumStr;
string CodeLetters;
DateTime year;
try {
if ((!Regex.IsMatch(txtCodeLetters.Text, @"^[a-zA-Z]+$")) || (txtCodeLetters.Text.Count() != 3))
{
formatfix += "\nFirst Textbox of Unit Code must be LETTERS ONLY and maximum 3 characters!";
}
if ((int.TryParse(txtCodeNumbers.Text, out CodeNumbers) == false) || (txtCodeNumbers.Text.Count() != 3))
{
formatfix += "\nSecond Textbox of Unit Code must be NUMBERS ONLY and maximum 3 characters!";
}
if (!Regex.IsMatch(txtYear.Text, "^(19|20)[0-9][0-9]"))
{
formatfix += "\nYear provided must be in appropriate full year format (e.g. " + DateTime.Now.Year.ToString() + ")!";
}
if ((int.TryParse(txtTrimester.Text, out Trimester) == false) || (Trimester < 1) || (Trimester > 3))
{
formatfix += "\nTrimester must be 1, 2 or 3!";
}
if ((int.TryParse(txtTotalLectures.Text, out TotalLectures) == false) || (TotalLectures < 0) || (TotalLectures > 36))
{
formatfix += "\nTotal Lectures must be a number and greater then 0 and less the 36!";
}
if ((int.TryParse(txtTotalPracticals.Text, out TotalPracticals) == false) || (TotalPracticals < 0) || (TotalPracticals > 36))
{
formatfix += "\nTotal Practicals must be a number and greater then 0 and less the 36!";
}
year = Convert.ToDateTime("01/01/" + txtYear.Text);
CodeLetters = txtCodeLetters.Text.ToUpper();
CodeNumStr = txtCodeNumbers.Text;
}
catch (Exception ex)
{
throw ex;
}
if (formatfix != string.Empty)
{
MessageBox.Show(formatfix, "The following must be fixed to add unit to database!");
return;
}
else
{
Unit NewUnit = new Unit(0, txtName.Text.ToUpper().Trim(), (txtCodeLetters.Text.ToUpper() + CodeNumStr.ToString()),
int.Parse(txtYear.Text), Trimester, TotalLectures, TotalPracticals);
if (Admin.SearchUnit(NewUnit.Code, NewUnit.Year, NewUnit.Trimester) != null)
{
MessageBox.Show("Please alter Unit Code, Year and/or Trimester", "Unit already exists!");
return;
}
Admin.AddUnit(NewUnit.Name, (txtCodeLetters.Text.ToUpper() + CodeNumStr.ToString()),
year, NewUnit.Trimester, NewUnit.TotalLectures, NewUnit.TotalPracticals);
MessageBox.Show("Unit: " + NewUnit.Code + " successfuly added to database", "Success");
Close();
}
}
