当用户更新所选项目的数量时,我必须通过刷新活动来更新购物车活动中所选项目的总价格 总价方法在MainActivity中,而所选购物车项目在RecyclerView中 我只想刷新适配器中的活动 public class Cart extends AppCompatActivity {
......
public void refreshActivtiy(){
recreate();
}
} //适配器 public class CartAdapter extends RecyclerView.Adapter<CartAdapter.CartViewHo
我能够连接到数据库服务器(Firebird),运行查询,所有这些有趣的事情,但在一段未确定的不活动期后,下一次查询尝试将生成以下错误
Unable to complete network request to host "XX.XX.XX.XX".
Error writing data to the connection.
An existing connection was forcibly closed by the remote host. .
SQL Error (code = -902):
Unsuccessful execution caused by a sys
我在试图复制
Select
...
From Mistress Mi
Left Outer Join Dog D On Mi.ID = C.MistressID
And D.MasterID =
( Select Ma2.ID From Master Ma2 Where
D.MasterID = Ma2.ID
And Ma2.Status = 42 )
Left Outer Join Master Ma On
D.MasterID = Master.ID
And Ma.Status = 4