void gvPreInvoices_DetailTableDataBind(object source, GridDetailTableDataBindEventArgs e)
{
GridDataItem parentItem = e.DetailTableView.ParentItem as GridDataItem;
if (parentItem.Edit)
{
return;
}
Facade.IPreInvoice facPreInvoice = new Facade.PreInvoice();
e.DetailTableView.DataSource = facPreInvoice.GetItemsForPreInvoice(int.Parse(parentItem.GetDataKeyValue("PreInvoiceID").ToString()));
}