/// <summary>
/// 根据全局变量查询当前订单并设置界面显示信息
/// </summary>
public void setCurrentOrder()
{
DataRow row = orderService.gatherSaleOrder(SystemInfo.CurrentOrderId);
String amountStr = row["amount"].ToString();
view.amountLabel.Text = amountStr;
view.countLabel.Text = row["count"].ToString();
view.disamountLabel.Text = row["disamount"].ToString();
SystemInfo.CurrentOrderAmount = Decimal.Parse(row["amount"].ToString());
}