我正在尝试编写一个程序，允许我从服务器端代码打印ssrs报告（.rdl文件）到预定的打印机，而没有任何弹出窗口询问我想要使用哪台打印机可以这样做吗？
编辑
还粘贴了我正在使用的ReportViewerDisposer实现的代码。
与课程ReportViewerDisposer一起找到here我使用以下代码，这是一个更大的项目的一部分，但你应该能够轻松地适应它：
private string m_printerName;
private string m_server;
private string m_path;
private string m_name;
private Dictionary<string, string> m_parameters;
private SizeF m_pageSize;
private float m_marginLeft;
private float m_marginTop;
private float m_marginRight;
private float m_marginBottom;
private short m_copies;
private int m_currentPageIndex;
private List<Stream> m_reportStreams;
public void PrintReport()
{
string mime, extension;
ReportViewer viewer = new ReportViewer();
ReportViewerDisposer disposer = new ReportViewerDisposer(viewer);
try
{
viewer.ProcessingMode = ProcessingMode.Remote;
viewer.ServerReport.ReportServerUrl = new Uri(String.Format("http://{0}/ReportServer", m_server));
viewer.ServerReport.ReportPath = String.Format("/{0}/{1}", m_path, m_name);
List<ReportParameter> param = new List<ReportParameter>();
foreach (ReportParameterInfo paramInfo in viewer.ServerReport.GetParameters())
{
if (m_parameters.ContainsKey(paramInfo.Name.ToUpperInvariant()))
{
string value = m_parameters[paramInfo.Name.ToUpperInvariant()];
param.Add(new ReportParameter(paramInfo.Name, value));
}
}
viewer.ServerReport.SetParameters(param);
viewer.RefreshReport();
CultureInfo us = new CultureInfo("en-US");
string deviceInfo = String.Format(
"<DeviceInfo>" +
" <OutputFormat>EMF</OutputFormat>" +
" <PageWidth>{0}cm</PageWidth>" +
" <PageHeight>{1}cm</PageHeight>" +
" <MarginTop>{2}cm</MarginTop>" +
" <MarginLeft>{3}cm</MarginLeft>" +
" <MarginRight>{4}cm</MarginRight>" +
" <MarginBottom>{5}cm</MarginBottom>" +
"</DeviceInfo>",
Math.Round(m_pageSize.Width, 2).ToString(us),
Math.Round(m_pageSize.Height, 2).ToString(us),
Math.Round(m_marginTop, 2).ToString(us),
Math.Round(m_marginLeft, 2).ToString(us),
Math.Round(m_marginRight, 2).ToString(us),
Math.Round(m_marginBottom, 2).ToString(us));
m_reportStreams = new List<Stream>();
try
{
NameValueCollection urlAccessParameters = new NameValueCollection();
urlAccessParameters.Add("rs:PersistStreams", "True");
Stream s = viewer.ServerReport.Render("IMAGE", deviceInfo, urlAccessParameters, out mime, out extension);
m_reportStreams.Add(s);
urlAccessParameters.Remove("rs:PersistStreams");
urlAccessParameters.Add("rs:GetNextStream", "True");
do
{
s = viewer.ServerReport.Render("IMAGE", deviceInfo, urlAccessParameters, out mime, out extension);
if (s.Length != 0) m_reportStreams.Add(s);
}
while (s.Length > 0);
DoPrint();
}
finally
{
foreach (Stream s in m_reportStreams)
{
s.Close();
s.Dispose();
}
m_reportStreams = null;
}
}
finally
{
disposer.CollectGarbageOnDispose = true;
disposer.Dispose();
}
}
private void DoPrint()
{
m_currentPageIndex = 0;
PrintDocument printDoc = new PrintDocument();
try
{
printDoc.PrintController = new StandardPrintController();
printDoc.PrinterSettings.PrinterName = m_printerName;
printDoc.PrinterSettings.Copies = m_copies;
if (!printDoc.PrinterSettings.IsValid)
{
throw new ArgumentException(String.Format("Drucker '{0}' ist nicht gültig!", m_printerName));
}
// Drucke das Dokument aus
printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
printDoc.QueryPageSettings += new QueryPageSettingsEventHandler(QueryPageSettings);
printDoc.Print();
}
finally
{
printDoc.PrintPage -= new PrintPageEventHandler(PrintPage);
printDoc.QueryPageSettings -= new QueryPageSettingsEventHandler(QueryPageSettings);
printDoc.Dispose();
}
}
private void PrintPage(object sender, PrintPageEventArgs ev)
{
if (m_currentPageIndex < m_reportStreams.Count)
{
Metafile mf = new Metafile(m_reportStreams[m_currentPageIndex++]);
try
{
ev.Graphics.DrawImage(mf, ev.PageBounds);
}
finally
{
mf.Dispose();
}
}
ev.HasMorePages = m_currentPageIndex < m_reportStreams.Count;
}
private void QueryPageSettings(object sender, QueryPageSettingsEventArgs e)
{
e.PageSettings.Landscape = m_pageSize.Width > m_pageSize.Height;
}
private class ReportViewerDisposer : IDisposable
{
// Fields
private bool _CollectGarbageOnDispose = true;
private ReportViewer _ReportViewer;
private bool disposedValue = false;
private const string EVENTHANDLER_ON_USER_PREFERENCE_CHANGED = "OnUserPreferenceChanged";
private const string LIST_HANDLERS = "_handlers";
private const string ON_USER_PREFERENCE_CHANGED_EVENT = "OnUserPreferenceChangedEvent";
private const string SYSTEM_EVENT_INVOKE_INFO = "SystemEventInvokeInfo";
private const string TARGET_DELEGATE = "_delegate";
private const string TOOLSTRIP_CONTROL_NAME = "reportToolBar";
private const string TOOLSTRIP_TEXTBOX_CONTROL_NAME_CURRENT_PAGE = "currentPage";
private const string TOOLSTRIP_TEXTBOX_CONTROL_NAME_TEXT_TO_FIND = "textToFind";
// Methods
public ReportViewerDisposer(ReportViewer rptv)
{
if (rptv == null)
{
throw new ArgumentNullException("ReportViewer cannot be null.");
}
this._ReportViewer = rptv;
}
public void Dispose()
{
this.Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
if (!this.disposedValue && disposing)
{
this.TearDownReportViewer();
this._ReportViewer.Dispose();
if (this._CollectGarbageOnDispose)
{
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
}
}
this.disposedValue = true;
}
private void NullRefOnUserPreferenceChanged(object o, string field)
{
try
{
FieldInfo fi = o.GetType().GetField(field, BindingFlags.NonPublic | BindingFlags.Instance);
if (fi != null)
{
int i;
ToolStripTextBox tb = (ToolStripTextBox)fi.GetValue(o);
object tbc = tb.Control;
Delegate d = Delegate.CreateDelegate(typeof(UserPreferenceChangedEventHandler), tbc, EVENTHANDLER_ON_USER_PREFERENCE_CHANGED);
object handlers = typeof(SystemEvents).GetField(LIST_HANDLERS, BindingFlags.NonPublic | BindingFlags.Static).GetValue(null);
object upcHandler = typeof(SystemEvents).GetField(ON_USER_PREFERENCE_CHANGED_EVENT, BindingFlags.NonPublic | BindingFlags.Static).GetValue(null);
object systemEventInvokeInfo = typeof(SystemEvents).GetNestedType(SYSTEM_EVENT_INVOKE_INFO, BindingFlags.NonPublic | BindingFlags.Instance);
IList upcHandlerList = (IList)((IDictionary)handlers)[upcHandler];
int targetCount = 0;
for (i = 0; i < upcHandlerList.Count; i++)
{
systemEventInvokeInfo = upcHandlerList[i];
Delegate target = (Delegate)systemEventInvokeInfo.GetType().GetField(TARGET_DELEGATE, BindingFlags.NonPublic | BindingFlags.Instance).GetValue(systemEventInvokeInfo);
if (target.Target == d.Target)
{
targetCount++;
}
}
for (i = 1; i <= targetCount; i++)
{
SystemEvents.UserPreferenceChanged -= ((UserPreferenceChangedEventHandler)d);
}
}
}
catch
{
}
}
private void TearDownReportViewer()
{
FieldInfo fi = this._ReportViewer.GetType().GetField(TOOLSTRIP_CONTROL_NAME, BindingFlags.NonPublic | BindingFlags.Instance);
if (fi != null)
{
object o = fi.GetValue(this._ReportViewer);
this.NullRefOnUserPreferenceChanged(o, TOOLSTRIP_TEXTBOX_CONTROL_NAME_CURRENT_PAGE);
this.NullRefOnUserPreferenceChanged(o, TOOLSTRIP_TEXTBOX_CONTROL_NAME_TEXT_TO_FIND);
}
}
// Properties
public bool CollectGarbageOnDispose
{
get
{
return this._CollectGarbageOnDispose;
}
set
{
this._CollectGarbageOnDispose = value;
}
}
}
首先，您需要将SSRS报告呈现为PDF格式，然后您可以直接打印PDF文件而无需打开任何弹出窗口，请参阅下面的代码：
public void PrintPreviewSSRSReport(string reportName)
{
try
{
string reportPath = string.Empty;
string historyID = null;
string deviceInfo = null;
string extension = null;
string encoding = null;
string mimeType = null;
string[] streamIDs = null;
string format = "PDF";
Byte[] result;
ReportExecution2005.Warning[] warnings = null;
ExecutionInfo execInfo = new ExecutionInfo();
TrustedUserHeader trusteduserHeader = new TrustedUserHeader();
ExecutionHeader execHeader = new ExecutionHeader();
ServerInfoHeader serviceInfo = new ServerInfoHeader();
MHTools.ReportExecution2005.ReportParameter[] _parameters = null;
ParameterValue[] _ParameterValue = null;
//Set the report path
reportPath = "/Reports/SalesReport";
//Create the object of report execution web service
ReportExecutionServiceSoapClient rsExec = new ReportExecutionServiceSoapClient();
//Use this if you don't need to pass the credentials from code
rsExec.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
//Load the reports
rsExec.LoadReport(trusteduserHeader, reportPath, historyID, out serviceInfo, out execInfo);
execHeader.ExecutionID = execInfo.ExecutionID;
//Get the parameters details from load report and eet the value in paremeters if any
_parameters = execInfo.Parameters;
_ParameterValue = new ParameterValue[1];
_ParameterValue[0] = new ParameterValue();
_ParameterValue[0].Name = _parameters[0].Name;
_ParameterValue[0].Value = "12345";
//Set the parameters
rsExec.SetExecutionParameters(execHeader, null, _ParameterValue, "en-us", out execInfo);
//Render the report
rsExec.Render(execHeader, null, format, deviceInfo, out result, out extension, out mimeType, out encoding, out warnings, out streamIDs);
//pass the file path where pdf file will be saved
using (FileStream stream = File.OpenWrite(PDFFile))
{
stream.Write(result, 0, result.Length);
}
//send the padf file path to printer
SendFileToPrinter(PDFFile);
}
catch (Exception ex)
{
//
}
}
#region Print SSRS Report
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
private class DOCINFOA
{
[MarshalAs(UnmanagedType.LPStr)]
public string pDocName;
[MarshalAs(UnmanagedType.LPStr)]
public string pOutputFile;
[MarshalAs(UnmanagedType.LPStr)]
public string pDataType;
}
[DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", SetLastError = true, CharSet = CharSet.Ansi, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string szPrinter, out IntPtr hPrinter, IntPtr pd);
[DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool ClosePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", SetLastError = true, CharSet = CharSet.Ansi, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool StartDocPrinter(IntPtr hPrinter, Int32 level, [In, MarshalAs(UnmanagedType.LPStruct)] DOCINFOA di);
[DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool EndDocPrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool StartPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool EndPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "WritePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, Int32 dwCount, out Int32 dwWritten);
[DllImport("winspool.drv", CharSet = CharSet.Auto, SetLastError = true)]
public static extern bool GetDefaultPrinter(StringBuilder pszBuffer, ref int size);
/// <summary>
/// This function gets the pdf file name.
/// This function opens the pdf file, gets all its bytes & send them to print.
/// </summary>
/// <param name="szPrinterName">Printer Name</param>
/// <param name="szFileName">Pdf File Name</param>
/// <returns>true on success, false on failure</returns>
public bool SendFileToPrinter(string pdfFileName)
{
try
{
#region Get Connected Printer Name
PrintDocument pd = new PrintDocument();
StringBuilder dp = new StringBuilder(256);
int size = dp.Capacity;
if (GetDefaultPrinter(dp, ref size))
{
pd.PrinterSettings.PrinterName = dp.ToString().Trim();
}
#endregion Get Connected Printer Name
// Open the PDF file.
FileStream fs = new FileStream(pdfFileName, FileMode.Open);
// Create a BinaryReader on the file.
BinaryReader br = new BinaryReader(fs);
Byte[] bytes = new Byte[fs.Length];
bool success = false;
// Unmanaged pointer.
IntPtr ptrUnmanagedBytes = new IntPtr(0);
int nLength = Convert.ToInt32(fs.Length);
// Read contents of the file into the array.
bytes = br.ReadBytes(nLength);
// Allocate some unmanaged memory for those bytes.
ptrUnmanagedBytes = Marshal.AllocCoTaskMem(nLength);
// Copy the managed byte array into the unmanaged array.
Marshal.Copy(bytes, 0, ptrUnmanagedBytes, nLength);
// Send the unmanaged bytes to the printer.
success = SendBytesToPrinter(pd.PrinterSettings.PrinterName, ptrUnmanagedBytes, nLength);
// Free the unmanaged memory that you allocated earlier.
Marshal.FreeCoTaskMem(ptrUnmanagedBytes);
return success;
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/// <summary>
/// This function gets the printer name and an unmanaged array of bytes, the function sends those bytes to the print queue.
/// </summary>
/// <param name="szPrinterName">Printer Name</param>
/// <param name="pBytes">No. of bytes in the pdf file</param>
/// <param name="dwCount">Word count</param>
/// <returns>True on success, false on failure</returns>
private bool SendBytesToPrinter(string szPrinterName, IntPtr pBytes, Int32 dwCount)
{
try
{
Int32 dwError = 0, dwWritten = 0;
IntPtr hPrinter = new IntPtr(0);
DOCINFOA di = new DOCINFOA();
bool success = false; // Assume failure unless you specifically succeed.
di.pDocName = Path.GetFileNameWithoutExtension(PDFFile);
di.pDataType = "RAW";
// Open the printer.
if (OpenPrinter(szPrinterName.Normalize(), out hPrinter, IntPtr.Zero))
{
// Start a document.
if (StartDocPrinter(hPrinter, 1, di))
{
// Start a page.
if (StartPagePrinter(hPrinter))
{
// Write the bytes.
success = WritePrinter(hPrinter, pBytes, dwCount, out dwWritten);
EndPagePrinter(hPrinter);
}
EndDocPrinter(hPrinter);
}
ClosePrinter(hPrinter);
}
// If print did not succeed, GetLastError may give more information about the failure.
if (success == false)
{
dwError = Marshal.GetLastWin32Error();
}
return success;
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
#endregion
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参考链接： Automatically print SSRS report? SSRS Printing without showind Print Dialog Printing Reports Programmatically Using C# and SQL Server 2000 Reporting Services Print SSRS Report Automatically Printing Reporting Services 2005 Reports