private void itemPriceSIzeToolStripMenuItem_Click(object sender, EventArgs e)
{
CloseAll();
frmManageProductSize fmItm = new frmManageProductSize();
fmItm.MdiParent = this;
fmItm.Show();
}
private void pictureBox2_Click(object sender, EventArgs e)
{
frmManageProductSize fm = new frmManageProductSize();
fm.MdiParent = this.MdiParent;
fm.Show();
this.Close();
}