从数据集和数据表生成 Crystal 报表

Question

我需要在只有一个独立数据集（未连接到任何类型的数据库）的应用程序中在 Crystal Reports 中生成报表。另外，我需要根据 DataTable 中的值生成报告。

你能帮我看看吗，我是新手。我有一个模板，但我不知道如何从 DataTable 生成报告，也不知道如何插入到模板中。

Answer 1

这篇文章只适合你；

Crystal Report with DataSet and DataTable using C#

• 将我们的报告绑定到我们的数据源

  using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Text;
  using System.Windows.Forms;
  using System.Data.OracleClient;
  using System.IO;
  
  namespace CrystalReportWithOracle
  {
      public partial class frmMain : Form
      {
          public frmMain()
          {
              InitializeComponent();
          }
  
          private void frmMain_Load(object sender, EventArgs e)
          {
              my_rpt objRpt;
              // Creating object of our report.
              objRpt = new my_rpt();
  
              String ConnStr = "SERVER=mydb;USER ID=user1;PWD=user1";
  
              OracleConnection myConnection = new OracleConnection(ConnStr);
  
              String Query1 = "select a.PROJECT_ID,a.PROJECT_NAME,b.GROUP_NAME from 
              tbl_project a,tbl_project_group b where a.group_code= b.group_code";
  
              OracleDataAdapter adapter = new OracleDataAdapter(Query1, ConnStr);
  
              DataSet Ds = new DataSet();
  
              // here my_dt is the name of the DataTable which we 
              // created in the designer view.
              adapter.Fill(Ds, "my_dt");
  
              if (Ds.Tables[0].Rows.Count == 0)
              {
                  MessageBox.Show("No data Found", "CrystalReportWithOracle");
                  return;
              }
  
              // Setting data source of our report object
              objRpt.SetDataSource(Ds);
  
              CrystalDecisions.CrystalReports.Engine.TextObject root;
              root = (CrystalDecisions.CrystalReports.Engine.TextObject)
                   objRpt.ReportDefinition.ReportObjects["txt_header"];
              root.Text = "Sample Report By Using Data Table!!";
  
              // Binding the crystalReportViewer with our report object. 
              crystalReportViewer1.ReportSource = objRpt;
          }
      }
  }
  

编辑：你也应该看看这个；

ADO.NET Datatable as Crystal Report datasource

How do I populate Crystal Reports, using a DataTable?