private void lvTableInfo_DoubleClick(object sender, EventArgs e)
{
//获取被点的餐桌项
var lv1 = sender as ListView;
var lvi = lv1.SelectedItems[0];
//获取餐桌编号
int tableId = Convert.ToInt32(lvi.Tag);
if (lvi.ImageIndex == 0)
{
//当前餐桌为空闲则开单
//1、开单，向orderinfo表插入数据
//2、修改餐桌状态为占用
int orderId = orderInfoBLL.AddOrder(tableId);
lvi.Tag = orderId;
//3、更新项的图标为占用
lv1.SelectedItems[0].ImageIndex = 1;
}
else
{
//当前餐桌已经占用，则进行点菜操作
lvi.Tag = orderInfoBLL.GetOrderIdByTableId(tableId);
}
//4、打开点菜窗体
FormOrderDish formOrderDish = new FormOrderDish();
formOrderDish.Tag = lvi.Tag;
formOrderDish.Show();
}
