private void btnValidate_Click(object sender, RoutedEventArgs e)
{
double gpa;
int streetnumber;
int zipcode;
if (txtFirstName.Text != "" && txtLastName.Text != "" && txtMajor.Text != "" && txtGPA.Text != "" && txtStreetNumber.Text != ""
&& txtStreetName.Text != "" && txtCity.Text != "" && txtState.Text != "" && txtZipCode.Text != "")
{
if (Double.TryParse(txtGPA.Text, out gpa) == true && Int32.TryParse(txtStreetNumber.Text, out streetnumber) == true
&& Int32.TryParse(txtZipCode.Text, out zipcode) == true)
{
gpa = Convert.ToDouble(txtGPA.Text);
streetnumber = Convert.ToInt32(txtStreetNumber.Text);
zipcode = Convert.ToInt32(txtZipCode.Text);
Student student = new Student();
student.FirstName = txtFirstName.Text;
student.LastName = txtLastName.Text;
student.Major = txtMajor.Text;
student.GPA = gpa;
student.SetAddress(streetnumber, txtStreetName.Text, txtState.Text, txtCity.Text, zipcode);
lstInfo.Items.Add(student);
}
else
{
if (Double.TryParse(txtGPA.Text, out gpa) == false)
{
MessageBox.Show("The GPA you entered is not a valid double.");
}
if (Int32.TryParse(txtStreetNumber.Text, out streetnumber) == false)
{
MessageBox.Show("The Street Number you entered is not a valid integer.");
}
if (Int32.TryParse(txtZipCode.Text, out zipcode) == false)
{
MessageBox.Show("The Zip Code you entered is not a valid integer.");
}
}
}
else
{
if (txtFirstName.Text == "")
{
MessageBox.Show("You did not enter a First Name.");
}
if (txtLastName.Text == "")
{
MessageBox.Show("You did not enter a Last Name.");
}
if (txtMajor.Text == "")
{
MessageBox.Show("You did not enter a Major.");
}
if (txtGPA.Text == "")
{
MessageBox.Show("You did not enter a GPA.");
}
if (txtStreetNumber.Text == "")
{
MessageBox.Show("You did not enter a Street Number.");
}
if (txtStreetName.Text == "")
{
MessageBox.Show("You did not enter a Street Name.");
}
if (txtCity.Text == "")
{
MessageBox.Show("You did not enter a City.");
}
if (txtState.Text == "")
{
MessageBox.Show("You did not enter a State.");
}
if (txtZipCode.Text == "")
{
MessageBox.Show("You did not enter a Zip Code.");
}
}
}