private void btn_search_Click(object sender, EventArgs e)
{
switch (cmb_search.Text)
{
case "订单号":
Service.GetById(Int32.Parse(tb_search.Text));
break;
case "顾客名称":
Service.QueryByCustomerName(tb_search.Text);
break;
case "总金额":
Service.QueryByTotalAmount(float.Parse(tb_search.Text));
break;
case "商品名称":
Service.QueryByGoodsName(tb_search.Text);
break;
default:
break;
}
}