private void newShipmentToolStripMenuItem_Click(object sender, EventArgs e)
{
var rc = from Control c
in m_reportTab.Controls
where c is ReportControl
select c;
ReportControl report = rc.First() as ReportControl;
var ic = from Control c
in m_inventoryTab.Controls
where c is InventoryControl
select c;
InventoryControl inventory = ic.First() as InventoryControl;
ShipmentForm sf = new ShipmentForm(ref m_register,
ref inventory,
ref report);
sf.ShowDialog();
}