private void addToolStripMenuItem_Click(object sender, EventArgs e)
{
ClassListAdd clad = new ClassListAdd();
clad.ShowDialog();
classListTableAdapter.Fill(schoolDataSet.ClassList);
schoolDataSet.AcceptChanges();
RefreshTable();
}
private void updateToolStripMenuItem_Click(object sender, EventArgs e)
{
var clt = new SchoolDataSet.ClassListDataTable();
classListTableAdapter.FillBy(clt, Convert.ToInt32(dataGridView1.SelectedRows[0].Cells[3].Value));
object[] row = clt.Rows[0].ItemArray;
var edit = new ClassListAdd(Convert.ToInt32(row[0]), Convert.ToInt32(row[1]), Convert.ToInt32(row[2]), Convert.ToByte(row[3]));
edit.ShowDialog();
classListTableAdapter.Fill(schoolDataSet.ClassList);
schoolDataSet.AcceptChanges();
RefreshTable();
}