private void gvListStudent_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
updateStdFrm edit = new updateStdFrm(Convert.ToInt32(gvListStudent.CurrentRow.Cells[0].Value));
edit.ShowDialog();
}
private void editRemoveToolStripMenuItem_Click(object sender, EventArgs e)
{
Form edit = new updateStdFrm();
edit.ShowDialog();
}