private void listViewPoint_SelectedIndexChanged(object sender, EventArgs e)
{
if (listViewPoint.SelectedItems.Count == 1)
{
PointsSet pointSet = listViewPoint.SelectedItems[0].Tag as PointsSet;
comboBoxSubject.SelectedIndex = comboBoxSubject.FindString(pointSet.IdSubject.ToString());
comboBoxStudent.SelectedIndex = comboBoxStudent.FindString(pointSet.IdStudent.ToString());
textBoxPoint.Text = pointSet.Point.ToString();
}
else
{
comboBoxSubject.SelectedItem = null;
comboBoxStudent.SelectedItem = null;
textBoxPoint.Text = "";
}
}
//Кнопка "Удалить"
private void buttonDel_Click(object sender, EventArgs e)
{
try
{
if (listViewPoint.SelectedItems.Count == 1)
{
PointsSet pointSet = listViewPoint.SelectedItems[0].Tag as PointsSet;
Program.ekzDb.PointsSet.Remove(pointSet);
Program.ekzDb.SaveChanges();
ShowPoint();
}
comboBoxSubject.SelectedItem = null;
comboBoxStudent.SelectedItem = null;
textBoxPoint.Text = "";
}
catch { MessageBox.Show("Невозможно удалить, эта запись используется!", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error); }
}
//Кнопка "Создать"
private void buttonAdd_Click(object sender, EventArgs e)
{
try
{
if (comboBoxSubject.SelectedItem != null && comboBoxStudent.SelectedItem != null && textBoxPoint.Text != "")
{
PointsSet pointSet = new PointsSet();
pointSet.IdSubject = Convert.ToInt32(comboBoxSubject.SelectedItem.ToString().Split('.')[0]);
pointSet.IdStudent = Convert.ToInt32(comboBoxStudent.SelectedItem.ToString().Split('.')[0]);
pointSet.Point = textBoxPoint.Text;
Program.ekzDb.PointsSet.Add(pointSet);
Program.ekzDb.SaveChanges();
ShowPoint();
}
else
{
MessageBox.Show("Поля не заполнены! Проверьте и повторите попытку.", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
catch (Exception ex) { MessageBox.Show("" + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error); }
}
