private void suppliers_Click(object sender, EventArgs e)
{
this.Hide();
supplierfm rec = new supplierfm();
rec.Show();
}
private void aDDToolStripMenuItem3_Click(object sender, EventArgs e)
{
this.Hide();
supplierfm suppfm = new supplierfm();
//suppfm.MdiParent = this;
suppfm.Show();
}