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