private void buttonEdit_Click(object sender, EventArgs e)
{
if (listViewGroup.SelectedItems.Count == 1)
{
GroupSet groupSet = listViewGroup.SelectedItems[0].Tag as GroupSet;
groupSet.NameGroup = textBoxNameGroup.Text;
groupSet.Specialty = textBoxSpecialty.Text;
groupSet.Year = Convert.ToInt32(textBoxYear.Text);
Program.dean.SaveChanges();
ShowGroup();
}
}
private void listViewGroup_SelectedIndexChanged(object sender, EventArgs e)
{
if (listViewGroup.SelectedItems.Count == 1)
{
GroupSet groupSet = listViewGroup.SelectedItems[0].Tag as GroupSet;
textBoxNameGroup.Text = groupSet.NameGroup;
textBoxSpecialty.Text = groupSet.Specialty;
textBoxYear.Text = groupSet.Year.ToString();
}
else
{
textBoxNameGroup.Text = "";
textBoxSpecialty.Text = "";
textBoxYear.Text = "";
}
}
private void buttonAdd_Click(object sender, EventArgs e)
{
try
{
GroupSet groupSet = new GroupSet();
groupSet.NameGroup = textBoxNameGroup.Text;
groupSet.Specialty = textBoxSpecialty.Text;
groupSet.Year = Convert.ToInt32(textBoxYear.Text);
Program.dean.GroupSet.Add(groupSet);
Program.dean.SaveChanges();
ShowGroup();
}
catch
{
MessageBox.Show("Невозможно добавить, введите другие значения.", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void buttonDel_Click(object sender, EventArgs e)
{
try
{
if (listViewGroup.SelectedItems.Count == 1)
{
GroupSet groupSet = listViewGroup.SelectedItems[0].Tag as GroupSet;
Program.dean.GroupSet.Remove(groupSet);
Program.dean.SaveChanges();
ShowGroup();
}
textBoxNameGroup.Text = "";
textBoxSpecialty.Text = "";
textBoxYear.Text = "";
}
//При ошибке
catch
{
MessageBox.Show("Невозможно удалить, эта запись используется!", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}