我用.net写程序,做报表时一直用水晶报表来做,最近发现用Microsoft的RDLC做报表也不错,而且方便,最主要布署(WEB)的时修没有水晶报表那么麻烦。 但是唯一的缺点是学习资料太少了，都得自己瞎搞。唯一好的资源就只有蜡人张同志的《 RDLC报表》系列，当然还有 MSDN 。 下面是不预览直接打印的实现，主要代码来自MSDN。
private void btnPrint_Click(object sender, EventArgs e){Run();}private int m_currentPageIndex;private IList<Stream> m_streams;private DataTable LoadSalesData(){SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["testrdlc.Properties.Settings.NorthwindConnectionString"].ConnectionString);SqlCommand cmd = new SqlCommand("SELECT * FROM Employees", con);SqlDataAdapter adp = new SqlDataAdapter();adp.SelectCommand = cmd;con.Open();DataTable dt = new DataTable();adp.Fill(dt);con.Close();return dt;}private Stream CreateStream(string name, string fileNameExtension,Encoding encoding, string mimeType, bool willSeek){Stream stream = new FileStream(name + "." + fileNameExtension,FileMode.Create);m_streams.Add(stream);return stream;}private void Export(LocalReport report){string deviceInfo ="<DeviceInfo>" +" <OutputFormat>EMF</OutputFormat>" +//" <PageWidth>8.5in</PageWidth>" +//" <PageHeight>11in</PageHeight>" +//" <MarginTop>0.25in</MarginTop>" +//" <MarginLeft>0.25in</MarginLeft>" +//" <MarginRight>0.25in</MarginRight>" +//" <MarginBottom>0.25in</MarginBottom>" +"</DeviceInfo>";Warning[] warnings;m_streams = new List<Stream>();try{report.Render("Image", deviceInfo, CreateStream, out warnings);}catch (Exception ex){Exception innerEx = ex.InnerException;//取内异常。因为内异常的信息才有用，才能排除问题。while (innerEx != null){MessageBox.Show(innerEx.Message);innerEx = innerEx.InnerException;}}foreach (Stream stream in m_streams)stream.Position = 0;}private void PrintPage(object sender, PrintPageEventArgs ev){Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]);ev.Graphics.DrawImage(pageImage, 0, 0);m_currentPageIndex++;ev.HasMorePages = (m_currentPageIndex < m_streams.Count);}private void Print(){const string printerName = "Microsoft Office Document Image Writer";if (m_streams == null || m_streams.Count == 0)return;PrintDocument printDoc = new PrintDocument();printDoc.PrinterSettings.PrinterName = printerName;if (!printDoc.PrinterSettings.IsValid){string msg = String.Format("Can't find printer /"{0}/".", printerName);Debug.WriteLine(msg);return;}printDoc.PrintPage += new PrintPageEventHandler(PrintPage);printDoc.Print();}private void Run(){LocalReport report = new LocalReport();report.ReportPath = Application.StartupPath +"//Report1.rdlc";//加上报表的路径report.DataSources.Add(new ReportDataSource("NorthwindDataSet_Employees", LoadSalesData()));Export(report);m_currentPageIndex = 0;Print();}要说明的是：一、report.ReportPath 属性指定的位置一定要有报表文件。二、如果report.Render出现异常，必须捕获内异常信息，因为最外层异常信息的用处不大，根本无法排除问题。三、
LocalReport.Render 方法的第一个参数 format
呈现报表所用的格式。 此参数将映射到某个呈现扩展插件。 支持的格式包括 Microsoft Office Excel、PDF 和 Image。详情参见MSDN
例子原码： 下载
