private void mtCart_Click(object sender, EventArgs e)
{
frmCart frmc = new frmCart(int.Parse(txtOrderNo.Text));
frmc.Show();
Dispose();
}
public EditOrder(int itemid, decimal currentqty, int orderno, frmCart form1)
{
_owner = form1;
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.EditOrder_FormClosing);
InitializeComponent();
ItemId = itemid;
currentQty = currentqty;
OrderNo = orderno;
}