private void btnThem_Click(object sender, EventArgs e)
{
frmSach frm = new frmSach();
frm.IsInsert = true;
frm.LamMoi += new EventHandler(btnHienThi_Click);
frm.ShowInTaskbar = false;
frm.ShowDialog();
}
private void gridView1_DoubleClick(object sender, EventArgs e)
{
frmSach frm = new frmSach();
frm.IsInsert = false;
frm.Ma = gridView1.GetRowCellValue(gridView1.FocusedRowHandle, gridView1.Columns[0]).ToString();
frm.LamMoi += new EventHandler(btnHienThi_Click);
frm.ShowInTaskbar = false;
frm.ShowDialog();
}