如何在后台运行报告并同时加载其数据

Question

我创建了一个报告（活动报告）并运行它。 但是在加载整个报告之前，报告窗口或报告不会出现。

我希望该报告应在我单击“显示报告”按钮后立即打开，并且该报告中的数据应在后台加载。

private void ViwerGLactivityReport_Load(object sender, EventArgs e)
{
        try
        {
            ar = new ActiveReport();
            ar = LoadReport(wSession, ar, CurrentUserContext, StartDate, EndDate, accountstart, accountEnd, PostInvoiceDate, JournalIDInvoiceNo);
            ViwerGLactivityReport.Document = ar.Document;
            ar.Run();
        }
        catch (Exception ex)
        {
            CusException cex = new CusException(ex);
            cex.Show(MessageBoxIcon.Error);
        }
}

   public ActiveReport LoadReport(NHSessionManager.SessionForWindows wSession, ActiveReport ar, M3.Globals.UserContext CurrentUserContext, DateTime StartDate, DateTime EndDate, double accountstart, double accountEnd, string PostInvoiceDate, string JournalIDInvoiceNo)
    {
        ar = new ActiveReport();
        try
        {
            Company = CurrentUserContext.CurrentCompany;
            Assembly asm = Assembly.GetAssembly(this.GetType());
            ar.DataInitialize += new EventHandler(ar_DataInitialize);
            ar.FetchData += new ActiveReport.FetchEventHandler(ar_FetchData);

            System.IO.Stream stre = asm.GetManifestResourceStream(asm.GetName().Name + ".GL.arActivity.rpx");

            using (XmlTextReader xr = new XmlTextReader(stre))
            {
                ar.LoadLayout(xr);
            }
    foreach (var itemAccRange in lstLedAccOrderBy)
            {
                List<M3.UDT.ReportDataGLActivityTransactions> lstReportData = new List<ReportDataGLActivityTransactions>();

                lstReportData = obj.GLActivityReport(Company, Property, itemAccRange.Account, StartDate, EndDate);
                var Acc = lstLedAcc.Where(x => x.Account == itemAccRange.Account).FirstOrDefault();
                foreach (var item in lstReportData)
                {
                    item.AccountNumber = itemAccRange.Account;


                    string AccName = string.Empty;
                    if (Acc != null)
                    {
                        AccName = Acc.FName;
                    }
                    item.AccountName = AccName;

                    if (Property != null)
                    {
                        item.CompanyName = Property.FName;
                    }
                    else
                    {
                        item.CompanyName = Company.FName;
                    }

                    ((DataDynamics.ActiveReports.Label)ar.Sections["PageFooter"].Controls["lblDateTime"]).Value = DateTime.Now.ToShortDateString() + " at " + DateTime.Now.ToLongTimeString();
                    item.PostInvoiceDate = PostInvoiceDate;
                    item.JournalIDInvoiceNo = JournalIDInvoiceNo;
                    item.StartAcc = accountstart;
                    item.EndAcc = accountEnd;
                    item.TotalForAccountNumber = itemAccRange.Account;

                    item.PostDate = item.fPostDate.ToShortDateString();

                    if (item.DebitAmount == Convert.ToDecimal("0.00"))
                    {
                        item.DebitAmtDisplay = "";
                    }
                    else
                    {
                        item.DebitAmtDisplay = Convert.ToString(item.DebitAmount);
                    }

                    if (item.CreditAmount == Convert.ToDecimal("0.00"))
                    {
                        item.CreditAmtDisplay = "";
                    }
                    else
                    {
                        item.CreditAmtDisplay = Convert.ToString(item.CreditAmount);
                    }

                    item.period = string.Format(" {0} {1} {2} {3}", CultureManager.GetReportMessageString("IdPeriod"), item.fPostDate.Month, CultureManager.GetReportMessageString("IdOf"), item.fPostDate.Year);
                    item.Totalperiod = string.Format(" {0} {1} {2} {3}", CultureManager.GetReportMessageString("IdTotalPerid"), item.fPostDate.Month, CultureManager.GetReportMessageString("IdOf"), item.fPostDate.Year);
                    if (ShowAccountsHeader == "show")
                    {
                        item.ShowAccountsHeader = CultureManager.GetReportMessageString("IdShowAcc"); //"Show Accounts with no activity";
                    }
                    else if (ShowAccountsHeader == "hide")
                    {
                        item.ShowAccountsHeader = CultureManager.GetReportMessageString("IdHideAcc");//"Hide Accounts with no activity";
                    }
                    else if (ShowAccountsHeader == "zero")
                    {
                        item.ShowAccountsHeader = CultureManager.GetReportMessageString("IdShowAccBalZero"); //"Show Accounts with no activity if Begining Balance is not zero";
                    }
                    else
                    {

                    }
                    lstReportDataPrint.Add(item); //added by jitendra
                    lstReportDataPrint.GroupBy(elem => elem.fJEID).Select(group => group.First());
                }

            }
  ar.DataSource = lstReportDataPrint;
  ar.Run();

}

是否有可能做到这一点？

Answer 1

这是使用分区报告的限制（在Active Reports 6及以下版本中，它们仅称为Active Reports）。 如果您愿意并且不允许在查询完成之前显示该报告，请使用“带区列表”方法报告该部分。

在Active Reports 7及更高版本中，我们引入了页面报告的概念，该概念允许这种行为。 由于页面报告的设计方式（“逐页”方法），因此可以执行此操作，因此，在完成页面1的显示之后，

1 /＃总页数

总页数从1开始并不断增加。