我是水晶报告的初学者,出于测试目的,我制作了一份水晶报告。我正在使用数据库中的数据,但是运行winform
后,它显示了空白的水晶报表。为什么?
winform中水晶报表的代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
using CrystalDecisions.CrystalReports.Engine;
namespace WindowsFormsApplication4
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(@"Data Source=DESKTOP-HKCVFM7;Initial Catalog=Testing;Integrated Security=True");
// SqlDataAdapter adp = new SqlDataAdapter();
DataSet ds = new DataSet();
SqlDataAdapter adp = new SqlDataAdapter("select * from Billdetails", con);
adp.Fill(ds);
ReportDocument rd = new ReportDocument();
rd.Load(@"D:\WindowsFormsApplication4\WindowsFormsApplication4\CrystalReport1.rpt");
rd.SetDataSource(ds);
crystalReportViewer1.ReportSource = rd;
}
}
}