从另一个表单C＃执行方法（更新datagridview）＃

Question

我有2个表格。 MainPage表单包含datagridview和fetchTradeReport方法来填充/刷新datagrid，而ColumnSettings表单用于配置用户想要显示的datagridviewcolumn。我有＆＃34;申请变更＆＃34; ColumnSettings表单中的按钮，我在click事件中包含fetchTradeReport方法。但是，数据网格仍然相同，并且在我点击它之后不会改变。

这是我的fetchTradeReport方法

    public void fetchTradeReport()
    {
        try
        {
            TTransport transport = new TSocket(address, port);
            TProtocol protocol = new TBinaryProtocol(transport);
            CacheService.Client client = new CacheService.Client(protocol);

            transport.Open();

            List<string> transactTime = new List<string>();
            SearchCriteria criteria = new SearchCriteria();
            criteria.Filters = new List<Filter>();
            DateTime dt = new DateTime(1970, 1, 1, 0, 0, 0, 0, System.DateTimeKind.Utc);

            if (Convert.ToString(tradeStatusCB.Text) != "")
                setTradeStatusFilter(criteria, (TradeReportStatus)Enum.Parse(typeof(TradeReportStatus), Convert.ToString(tradeStatusCB.Text)));
            if (platformTB.Text != "")
                setPlatformFilter(criteria, platformTB.Text);
            if (exchangeTB.Text != "")
                criteria.Exchange = exchangeTB.Text;
            if (productTB.Text != "")
                criteria.Product = productTB.Text;
            if (accountTB.Text != "")
                criteria.Account = accountTB.Text;
            if (orderidTB.Text != "")
                setOrderIDFilter(criteria, orderidTB.Text);
            if (tradereportidTB.Text != "")
                setReportIDFilter(criteria, tradereportidTB.Text);
            if (tradedateDTP.Text.Length != 1)
                criteria.TradeDate = Convert.ToInt32(tradedateDTP.Value.ToString("yyyyMMdd"));

            var tradeList = client.getTradeReports(criteria);
            tradeGridView.DataSource = tradeList;

            foreach (DataGridViewRow row in tradeGridView.Rows)
            {
                double time = Convert.ToDouble(row.Cells["TransactTime"].Value);
                string dtm = dt.AddSeconds(time).ToLocalTime().ToString();
                transactTime.Add(dtm);
            }

            tradeGridView.Columns.Remove("TransactTime");

            if(tradeGridView.Columns.Contains("TransactionTime"))
                tradeGridView.Columns.Remove("TransactionTime");

            tradeGridView.Columns.Add("TransactionTime", "TransactionTime");
            tradeGridView.Columns["TransactionTime"].ValueType = typeof(String);

            int i = 0;

            foreach (DataGridViewRow row in tradeGridView.Rows)
            {
                row.Cells["TransactionTime"].Value = transactTime[i];
                i++;
            }

            int counter = 0;
            string line;

            if (File.Exists(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + @"\\ColumnSettings.config"))
            {
                StreamReader readFile = new StreamReader(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + @"\\ColumnSettings.config");

                while ((line = readFile.ReadLine()) != null)
                {
                    string columnName = line.Substring(0, line.Length - 2);
                    tradeGridView.Columns[columnName].DisplayIndex = counter;

                    if (line.Split('-').Last() == "1")
                        tradeGridView.Columns[columnName].Visible = true;
                    else
                        tradeGridView.Columns[columnName].Visible = false;

                    counter++;
                }

                readFile.Close();
            }

            else
                collectColumnName();

            transport.Close();
        }

        catch (Exception e)
        {
            MessageBox.Show(e.StackTrace);
        }
    }

这就是我在＆＃34; Apply Changes＆＃34; ColumnSettings表单中的按钮单击事件

    new MainPage(GetConnectionString.address, GetConnectionString.port).fetchTradeReport();

对不起，如果我的英语不好。任何帮助赞赏。感谢。