private void btnThoat_Click(object sender, EventArgs e)
{
DialogResult h = MessageBox.Show
("Bạn chắc chắn muốn thoát?", "Error", MessageBoxButtons.OKCancel);
if (h == DialogResult.OK)
{
frmLoaiXe fnv = new frmLoaiXe();
this.Close();
}
}
private void asdasdToolStripMenuItem1_Click(object sender, EventArgs e)
{
frmLoaiXe formlx = new frmLoaiXe();
formlx.Show();
}