有沒有更好的方法來做到這一點？

就這樣吧。我有一個工作得很好的數據集模型，它從數據庫導入數據並將其提供給水晶報表。該解決方案的工作，但它是非常耗費時間，我不知道是否有這樣做的任何其他方式...有沒有更好的方法來做到這一點？

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using Oracle.DataAccess.Client; 
using System.Data; 
using CrystalDecisions.CrystalReports.Engine; 
using CrystalDecisions.Shared; 


namespace WebApplication1 
{ 
    public partial class WebForm1 : System.Web.UI.Page 
    { 
     protected void Page_Load(object sender, EventArgs e) 
     { 

     } 

     protected void Button1_Click(object sender, EventArgs e) 
     { 
      string connetionString = null; 
      OracleConnection connection; 
      OracleDataAdapter OracleAdapter; 
      DataSet ds = new DataSet(); 
      string firstSql = null; 


      connetionString = "datasoruce"; 

      connection = new OracleConnection(connetionString); 
       string secondSql = "select statementnumber from erocks.statement_data_domestic"; 
       connection.Open(); 
       //OracleAdapter = new OracleDataAdapter(firstSql, connection); 
       //OracleAdapter.Fill(ds, "domestic"); 
       OracleAdapter = new OracleDataAdapter(secondSql, connection); 
       OracleAdapter.Fill(ds, "statement"); 
       connection.Close(); 
       ReportDocument reportDoc = new ReportDocument(); 
       reportDoc.Load(@"c:\users\desktop\statement.rpt"); 


      DataTable stmt = ds.Tables["statement"]; 

      string stmtnumber=""; 
      for (int i = 0; i < stmt.Rows.Count - 1; i++) 
      { 
       stmtnumber = stmt.Rows[i][0].ToString(); 

       firstSql = @"SELECT DISTINCT statement_header.statementnumber, 
        statement_details.invoicedate, 
        statement_details.invoicenumber, 
        statement_details.invoicetotal, 
        statement_details.doc_type, 
        statement_header.statementtotal, 
        statement_details.bunumber_ru, 
        statement_details.bunumber, 
        statement_details.description, 
        statement_details.reference_number, 
        statement_header.remto_zip, 
        statement_header.remto_city, 
        statement_header.remto_state, 
        statement_header.remto_mailname, 
        statement_header.remto_addr1, 
        statement_header.remto_addr2, 
        statement_header.remto_addr3, 
        statement_header.soldto_city, 
        statement_header.soldto_state, 
        statement_header.soldto_zip, 
        statement_header.soldto_addr1, 
        statement_header.soldto_addr2, 
        statement_header.soldto_addr3, 
        statement_header.balance_forward, 
        statement_header.statementdate, 
        statement_header.custid, 
        statement_header.custname, 
        statement_header.phone_prefix, 
        statement_header.phone_number, 
        statement_details.purchases, 
        statement_details.payments, 
        statement_details.misc_credit2, 
        statement_details.misc_credit1, 
        statement_header.company_number, 
        statement_header.statementpurchases, 
        statement_header.statementpayments, 
        statement_header.statementmisc_credit1, 
        statement_header.statementmisc_credit2, 
        statement_header.nomailnoprint, 
        statement_header.SOLDTOCOUNTRYCODE, 
        statement_header.SOLDTOCOUNTRYNAME, 
        statement_header.CREDITZEROFLAG 
     FROM STATEMENT_DATA_DOMESTIC statement_header 
      INNER JOIN STATEMENT_DATA_DETAILS statement_details 
       ON statement_header.statementnumber = 
        statement_details.statementnumber 
         where statement_header.statementnumber="+stmtnumber; 
       connection.Open(); 
       OracleAdapter = new OracleDataAdapter(firstSql, connection); 
       OracleAdapter.Fill(ds, "domestic"); 

       OracleAdapter.Dispose(); 
       connection.Close(); 
       reportDoc.SetDataSource(ds.Tables["domestic"]); 
       ExportOptions CrExportOptions; 
       DiskFileDestinationOptions CrDiskFileDestinationOptions = new DiskFileDestinationOptions(); 
       PdfRtfWordFormatOptions CrFormatTypeOptions = new PdfRtfWordFormatOptions(); 
       CrDiskFileDestinationOptions.DiskFileName = @"d:\pdf\"+ stmtnumber + ".pdf"; 
       CrExportOptions = reportDoc.ExportOptions; 
       { 
        CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile; 
        CrExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat; 
        CrExportOptions.DestinationOptions = CrDiskFileDestinationOptions; 
        CrExportOptions.FormatOptions = CrFormatTypeOptions; 

       } 
       reportDoc.Export(); 
       ds.Tables["domestic"].Clear(); 
      } 
       } 
      } 

     }

來源

2013-05-08 user2315840

什麼是費時呢？你是否瀏覽了代碼？有很多數據嗎？究竟是什麼問題？ – LittleBobbyTables 2013-05-08 17:19:13

大量的數據處理時間過長，記錄我也跟數據庫的連接是打開和關閉的。我在想有沒有辦法讓我可以獲得數據表中的所有數據，以及如何複製確切的 – user2315840 2013-05-08 17:22:49

例如用數據庫中的所有數據填充ds.Tables [「domestic」]填充ds.tables [「聲明「]與所有語句編號。關閉數據庫連接。現在解析ds.tables [「statement」]中的每條記錄，僅從該語句編號的國內獲取所有相關數據，並將其放入一個將其提供給crystalreport的數據表中。 – user2315840 2013-05-08 17:28:23

如果通過statementID檢索所有報表數據，它裏面組的那樣會更快報告並爆發這個小組的報告。爆炸將爲每個組生成一個單獨的文件。通過這種方式，您將能夠通過一次調用數據庫來生成所有文件。

來源

2013-05-08 21:05:58 Lan

我是新來的水晶報告。。我該如何爆發..你可以分享的任何例子？ – user2315840 2013-05-09 13:19:29

有沒有更好的方法來做到這一點？

回答

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