private void buttonEdit_Click(object sender, EventArgs e)
{
MarksSet marksSet = listViewMarks.SelectedItems[0].Tag as MarksSet;
marksSet.IdStudents = Convert.ToInt32(comboBoxStudents.SelectedItem.ToString().Split('.')[0]);
marksSet.IdSubjects = Convert.ToInt32(comboBoxSubjects.SelectedItem.ToString().Split('.')[0]);
marksSet.Mark = Convert.ToInt32(textBoxMarks.Text);
Program.school.SaveChanges();
ShowMarks();
}
private void listViewMarks_SelectedIndexChanged(object sender, EventArgs e)
{
if (listViewMarks.SelectedItems.Count == 1)
{
MarksSet marksSet = listViewMarks.SelectedItems[0].Tag as MarksSet;
comboBoxStudents.SelectedIndex = comboBoxStudents.FindString(marksSet.IdStudents.ToString());
comboBoxSubjects.SelectedIndex = comboBoxSubjects.FindString(marksSet.IdSubjects.ToString());
textBoxMarks.Text = marksSet.Mark.ToString();
}
else
{
textBoxMarks.Text = "";
comboBoxStudents.Text = null;
comboBoxSubjects.Text = null;
}
}
private void buttonAdd_Click(object sender, EventArgs e)
{
try
{
if (comboBoxSubjects.Text != null && comboBoxStudents.Text != null && textBoxMarks.Text != "")
{
MarksSet marksSet = new MarksSet();
marksSet.Mark = Convert.ToInt32(textBoxMarks.Text);
marksSet.IdStudents = Convert.ToInt32(comboBoxStudents.SelectedItem.ToString().Split('.')[0]);
marksSet.IdSubjects = Convert.ToInt32(comboBoxSubjects.SelectedItem.ToString().Split('.')[0]);
Program.school.MarksSet.Add(marksSet);
Program.school.SaveChanges();
ShowMarks();
}
}
catch
{
MessageBox.Show("Неправильно введены данные!", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void buttonDel_Click(object sender, EventArgs e)
{
try
{
if (listViewMarks.SelectedItems.Count == 1)
{
MarksSet marksSet = listViewMarks.SelectedItems[0].Tag as MarksSet;
Program.school.MarksSet.Remove(marksSet);
Program.school.SaveChanges();
ShowMarks();
}
textBoxMarks.Text = "";
comboBoxStudents.Text = null;
comboBoxSubjects.Text = null;
}
catch
{
MessageBox.Show("Невозможно удалить, эта запись используется!", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
