private void PrintButton_Click(object sender, EventArgs e)
{
foreach (ListViewItem l in pickingListView.SelectedItems)
{
Invoice temp = new Invoice(Int32.Parse(l.SubItems[0].Text));
temp.PrintExcel();
}
}
private void PickingListView_DoubleClick(object sender, EventArgs e)
{
Invoice temp = new Invoice(Int32.Parse(pickingListView.SelectedItems[0].SubItems[0].Text));
temp.PrintExcel();
}