Question

我需要在一个应用程序中在Crystal Reports中生成一个报表，其中只有一个独立的DataSet（未连接到任何类型的数据库）。另外，我需要根据DataTable中的值生成报告。

请你告诉我，我是新手。我有一个模板，但我不知道如何从DataTable生成报告，也不知道如何插入模板。

Answer 1

本文仅供您使用;

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?

从DataSet和DataTable生成Crystal Reports

1 个答案: