private void buttonAdd_Click(object sender, EventArgs e)
{
try
{
StudentsSet studentset = new StudentsSet();
if (textBoxSecondName.Text != "")
{
studentset.SecondName = textBoxSecondName.Text;
}
if (textBoxFirstName.Text != "")
{
studentset.FirstName = textBoxFirstName.Text;
}
if (textBoxLastName.Text != "")
{
studentset.LastName = textBoxLastName.Text;
}
if (comboBoxGroup.SelectedItem != null)
{
studentset.IdGroup = Convert.ToInt32(comboBoxGroup.SelectedItem.ToString().Split('.')[0]);
}
if (textBoxYear.Text != "")
{
studentset.YearReceipt = Convert.ToInt32(textBoxYear.Text);
}
Program.EduDb.StudentsSet.Add(studentset);
Program.EduDb.SaveChanges();
}
catch
{
{ MessageBox.Show("Данные не выбраны", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error); }
}
ShowStudents();
}
private void listViewStudent_SelectedIndexChanged(object sender, EventArgs e)
{
if (listViewStudent.SelectedItems.Count == 1)
{
StudentsSet studentset = listViewStudent.SelectedItems[0].Tag as StudentsSet;
textBoxSecondName.Text = studentset.SecondName;
textBoxFirstName.Text = studentset.FirstName;
textBoxLastName.Text = studentset.LastName;
comboBoxGroup.SelectedIndex = comboBoxGroup.FindString(studentset.IdGroup.ToString());
textBoxYear.Text = studentset.YearReceipt.ToString();
}
else
{
textBoxSecondName.Text = "";
textBoxFirstName.Text = "";
textBoxLastName.Text = "";
comboBoxGroup.SelectedItem = null;
textBoxYear.Text = "";
}
}
private void buttonEdit_Click(object sender, EventArgs e)
{
if ((textBoxSecondName.Text != "") &&
(textBoxFirstName.Text != "") &&
(textBoxLastName.Text != "") &&
(comboBoxGroup.SelectedItem != null) &&
(textBoxYear.Text != ""))
{
if (listViewStudent.SelectedItems.Count == 1)
{
StudentsSet studentset = listViewStudent.SelectedItems[0].Tag as StudentsSet;
if (textBoxSecondName.Text != "")
{
studentset.SecondName = textBoxSecondName.Text;
}
if (textBoxFirstName.Text != "")
{
studentset.FirstName = textBoxFirstName.Text;
}
if (textBoxLastName.Text != "")
{
studentset.LastName = textBoxLastName.Text;
}
if (comboBoxGroup.SelectedItem != null)
{
studentset.IdGroup = Convert.ToInt32(comboBoxGroup.SelectedItem.ToString().Split('.')[0]);
}
if (textBoxYear.Text != "")
{
studentset.YearReceipt = Convert.ToInt32(textBoxYear.Text);
}
Program.EduDb.SaveChanges();
ShowStudents();
}
}
else
{
MessageBox.Show("Данные не выбраны", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void buttonDel_Click(object sender, EventArgs e)
{
try
{
if (listViewStudent.SelectedItems.Count == 1)
{
StudentsSet studentset = listViewStudent.SelectedItems[0].Tag as StudentsSet;
Program.EduDb.StudentsSet.Remove(studentset);
Program.EduDb.SaveChanges();
ShowStudents();
}
textBoxSecondName.Text = "";
textBoxFirstName.Text = "";
textBoxLastName.Text = "";
comboBoxGroup.SelectedItem = null;
textBoxYear.Text = "";
}
catch
{
MessageBox.Show("Невозможно удалить, эта запись используется", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}