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sql2xls's Issues

System.OutOfMemoryException when generating excel with SAX from very large sql result

System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
at System.IO.MemoryStream.set_Capacity(Int32 value)
at System.IO.MemoryStream.EnsureCapacity(Int32 value)
at System.IO.MemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.Xml.XmlUtf8RawTextWriter.FlushBuffer()
at System.Xml.XmlUtf8RawTextWriter.WriteAttributeTextBlock(Char* pSrc, Char* pSrcEnd)
at System.Xml.XmlUtf8RawTextWriter.WriteString(String text)
at System.Xml.XmlWellFormedWriter.WriteString(String text)
at DocumentFormat.OpenXml.OpenXmlPartWriter.WriteStartElement(OpenXmlElement elementObject, IEnumerable1 attributes, IEnumerable1 namespaceDeclarations)
at Sql2Xls.Excel.Adapters.ExcelExportSAXAdapter.CreateSharedStringCellSAX(OpenXmlWriter openXmlWriter, Int32 columnIndex, Int32 rowIndex, String value, UInt32 styleIndex, Boolean isValueSharedString) in D:\projects\Sql2Xls\src\Sql2Xls\Excel\Adapters\ExcelExportSAXAdapter.cs:line 422
at Sql2Xls.Excel.Adapters.ExcelExportSAXAdapter.CreateSheetDataSAX(OpenXmlWriter openXmlWriter, DataTable dataTable) in D:\projects\Sql2Xls\src\Sql2Xls\Excel\Adapters\ExcelExportSAXAdapter.cs:line 333
at Sql2Xls.Excel.Adapters.ExcelExportSAXAdapter.CreateWorksheet(SpreadsheetDocument document, WorksheetPart worksheetPart, DataTable dataTable) in D:\projects\Sql2Xls\src\Sql2Xls\Excel\Adapters\ExcelExportSAXAdapter.cs:line 298
at Sql2Xls.Excel.Adapters.ExcelExportAdapter.CreateFromDataTable(SpreadsheetDocument document, DataTable dataTable) in D:\projects\Sql2Xls\src\Sql2Xls\Excel\Adapters\ExcelExportAdapter.cs:line 204
at Sql2Xls.Excel.Adapters.ExcelExportAdapter.LoadFromDataTable(DataTable dataTable) in D:\projects\Sql2Xls\src\Sql2Xls\Excel\Adapters\ExcelExportAdapter.cs:line 96
at Sql2Xls.Sql2XlsService.CreateDocument(String datasetName, String sqlCommand, String outputFile, Sql2XlsServiceParameters parms) in D:\projects\Sql2Xls\src\Sql2Xls\Sql2XlsService.cs:line 181
at Sql2Xls.Sql2XlsService.ProcessTask(Sql2XlsTaskData taskData, Sql2XlsServiceParameters parms) in D:\projects\Sql2Xls\src\Sql2Xls\Sql2XlsService.cs:line 135

Remove call in Sql2XlsService to GetAccessControl in CheckWriteAccessToFolder method (Linux compatibility isues) 

private bool CheckWriteAccessToFolder(string folderPath)
{
  try
  {
      // Attempt to get a list of security permissions from the folder. 
      // This will raise an exception if the path is read only or do not have access to view the permissions. 

      var di = new DirectoryInfo(folderPath);
      DirectorySecurity ds = di.GetAccessControl();
      return true;
  }
  catch (UnauthorizedAccessException)
  {
      return false;
  }
}

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