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POThe process cannot access the file 'xxx' because it is being used by another process when Exporing to PDF using ReportViewer
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  1. POThe process cannot access the file 'xxx' because it is being used by another process when Exporing to PDF using ReportViewer
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    copied!<p>when trying to export a export a PDF using reportviewer I am getting this error/excpetion <strong>The process cannot access the file 'xxx' because it is being used by another process</strong></p> <pre><code>public bool Export(string accountNumber, DateTime settlementDateTime, string PDFfileName, out string errorMsg) { bool success; ReportViewer reportViewer; Warning[] warnings; ReportParameter[] rptParameters; string[] streamids; string mimeType; string encoding; string filenameExtension; byte[] bytes; success = false; errorMsg = string.Empty; try { Console.Out.WriteLine(String.Format("Generando extracto para la cuenta \"{0}\" de la fecha {1}", accountNumber, settlementDateTime)); reportViewer = new ReportViewer(); // Set Processing Mode reportViewer.ProcessingMode = ProcessingMode.Remote; //set the URL of the report to execute reportViewer.ServerReport.ReportServerUrl = new Uri(repServerURL); reportViewer.ServerReport.ReportPath = repPath ; //Create the parameters that the report needs rptParameters = new ReportParameter[2]; rptParameters[0] = new ReportParameter(); rptParameters[0].Name = "rptPrm_AccountNumber"; rptParameters[0].Values.Add(accountNumber); rptParameters[1] = new ReportParameter(); rptParameters[1].Name = "rptPrm_Date"; string dateAsString; dateAsString = settlementDateTime.ToString(); rptParameters[1].Values.Add(dateAsString); reportViewer.ServerReport.SetParameters(rptParameters); // Process and render the report reportViewer.ServerReport.Refresh(); //Render it to PDF and take the bytes to the FileStream bytes = reportViewer.ServerReport.Render( "PDF", null, out mimeType, out encoding, out filenameExtension, out streamids, out warnings); using (FileStream fs = new FileStream(Path.Combine(exportPath, PDFfileName), FileMode.Create)) { fs.Write(bytes, 0, bytes.Length); fs.Close(); } reportViewer.Dispose(); success = true; } catch (Exception ex) { errorMsg = ex.Message; Console.Error.WriteLine(String.Format("Se presento error al generar extracto para la cuenta \"{0}\" de la fecha {1}-{2}", accountNumber, settlementDateTime, errorMsg)); } return success; } } </code></pre> <p>Is important to mention that before calling the export method I am deleting all the PDF files in the folder by calling this method</p> <pre><code> private bool DeletePDFfiles(StringBuilder sbLog) { bool exito; List&lt;string&gt; lstFiles; exito = true; lstFiles = new List&lt;string&gt;(Directory.GetFileSystemEntries(this.settings.folderWithFilesToSend, "*.pdf")); if ((lstFiles != null) &amp;&amp; (lstFiles.Count &gt; 0)) { foreach (string existingPDFfile in lstFiles) { try { File.Delete(existingPDFfile); } catch (Exception ex) { //Si el archivo no pudo ser borrado sbLog.Append(string.Format("Error {0} al borrar el archivo {0}", ex.Message, existingPDFfile)); exito = false; } } } return exito; } </code></pre>
 

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