MicrosoftReportViewer 直接打印问题【急】！！

空白画映 2011-05-24 03:45:22

各位大哥大姐大叔大侠帮帮忙！

MicrosoftReportViewer 我想直接打印
在微软MSDN上看到一个例子



http://msdn.microsoft.com/zh-cn/library/ms252091(v=VS.90).aspx

下面是我的代码，我参照MSDN上面修改的，已经有Report.rdlc 都设置好了。Report.rdlc里控件的值都是用参数传入的。



using System;

using System.IO;

using System.Data;

using System.Text;

using System.Drawing.Imaging;

using System.Drawing.Printing;

using System.Collections.Generic;

using System.Windows.Forms;

using Microsoft.Reporting.WinForms;

using System.Data.SqlClient;



public class Demo : IDisposable

{

    private int m_currentPageIndex;

    private IList<Stream> m_streams;



    private DataTable LoadSalesData()

    {

        string conn = "server=192.168.0.70;database=his;user id =sa;pwd=sqlsa2002";

        SqlConnection con = new SqlConnection(conn);



        SqlCommand cmd = new SqlCommand("SELECT balance,total FROM mem_ac where code ='100000000001'", con);



        SqlDataAdapter adp = new SqlDataAdapter();



        adp.SelectCommand = cmd;



        con.Open();



        DataTable dt = new DataTable();



        adp.Fill(dt);



        con.Close();



        return dt;

    }

    // Routine to provide to the report renderer, in order to

    //    save an image for each page of the report.

    private Stream CreateStream(string name,

      string fileNameExtension, Encoding encoding,

      string mimeType, bool willSeek)

    {

        Stream stream = new MemoryStream();

        m_streams.Add(stream);

        return stream;

    }

    // Export the given report as an EMF (Enhanced Metafile) file.

    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>();

        report.Render("Image", deviceInfo, CreateStream,

           out warnings);

        foreach (Stream stream in m_streams)

            stream.Position = 0;

    }

    // Handler for PrintPageEvents

    private void PrintPage(object sender, PrintPageEventArgs ev)

    {

        Metafile pageImage = new

           Metafile(m_streams[m_currentPageIndex]);



        

        m_currentPageIndex++;

        ev.HasMorePages = (m_currentPageIndex < m_streams.Count);

    }



    private void Print()

    {

        if (m_streams == null || m_streams.Count == 0)

            throw new Exception("Error: no stream to print.");

        PrintDocument printDoc = new PrintDocument();

        if (!printDoc.PrinterSettings.IsValid)

        {

            throw new Exception("Error: cannot find the default printer.");

        }

        else

        {

            printDoc.PrintPage += new PrintPageEventHandler(PrintPage);

            m_currentPageIndex = 0;

            printDoc.Print();

        }

    }

    // Create a local report for Report.rdlc, load the data,

    //    export the report to an .emf file, and print it.

    private void Run()

    {

        LocalReport report = new LocalReport();

        report.ReportPath = @"..\..\Report.rdlc";

        ReportParameter[] rp = new ReportParameter[10];

        rp[0] = new ReportParameter("RegNumber", "0000286872");

        rp[1] = new ReportParameter("DossierNumber", "122755");

        rp[2] = new ReportParameter("ShowDate", "2011年5月9日");

        rp[3] = new ReportParameter("Number", "9155000635");

        rp[4] = new ReportParameter("PatientName", "陈颖");

        rp[5] = new ReportParameter("PaymentType", "银行卡");

        rp[6] = new ReportParameter("MoneyCapital", "this.GetNumToUpper(Money1)");

        rp[7] = new ReportParameter("Money", "Money1.ToString()");

        rp[8] = new ReportParameter("Departments", "呼吸内科16病房");

        rp[9] = new ReportParameter("Operator", "张三丰");

        report.SetParameters(rp);

        Export(report);

        Print();

    }



    public void Dispose()

    {

        if (m_streams != null)

        {

            foreach (Stream stream in m_streams)

                stream.Close();

            m_streams = null;

        }

    }



    public static void Main(string[] args)

    {

        using (Demo demo = new Demo())

        {

            demo.Run();

        }

    }

}