连接未关闭连接的当前状态是打开的c＃

Question

当我在计时器中调用此函数时，它会一直告诉我 连接未关闭，连接的当前状态已打开

任何帮助请...

    public static void Notify(string source, string query, ref OleDbConnection connection)
    {
        OleDbCommand command = new OleDbCommand(query, connection);
        try
        {
            connection.Open();
            OleDbDataReader reader = command.ExecuteReader();

            while (reader.Read())
            {
                DateTime date = DateTime.Parse(reader[0].ToString());
                if (date.ToShortDateString() == DateTime.Now.ToShortDateString())
                {
                    DateTime time = DateTime.Parse(reader[1].ToString());
                    if (time.ToShortTimeString() ==DateTime.Now.ToShortTimeString())
                    {
                        string notification = source + " You have " + reader[2].ToString() + " at " + (time.ToLongTimeString()).ToString();

                        MessageBox.Show(notification, "Reminder", MessageBoxButtons.OK, MessageBoxIcon.Information);

                    }
                }
            }

        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
        finally
        {
            connection.Close();
        }
    }

Answer 1

如消息所示，您的连接已打开。这意味着您已经调用了

connection.Open();

在调用“通知”之前的某个地方。检查您的代码，看看是否是这种情况。希望它有所帮助。