private void frmLichsuxuat_FormClosing(object sender, FormClosingEventArgs e)
{
frmXuathang frm = new frmXuathang();
frm.Show();
this.Dispose();
}
private void toolStripMenuItem4_Click(object sender, EventArgs e)
{
frmXuathang frmXuat = new frmXuathang();
frmXuat.Show();
}
private void label6_Click(object sender, EventArgs e)
{
frmXuathang frmXuat = new frmXuathang();
frmXuat.Show();
}