Looking up file extension C#[Answered] RSS

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  gymrat29

  Member

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  53 Posts

  Looking up file extension C#

  Jun 17, 2014 02:32 PM|gymrat29|LINK

   Hello,

  I converted a VB.Net file to C# and I'm getting issues with one line of code (in bold) that the error states: 

  Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type

  Not sure what to use in the place of .Extension? Code is:

  -----------------------------------------------------------------

  public void PrintDocs(string basketId, string shopperId, string printerName)
  {
  try
  {
  _ixBase = new ImagXpress();
  _printPro = new PrintPro();
  _pdfRenderOpt = new Accusoft.PdfXpressSdk.RenderOptions
  {
  RenderAnnotations = true,
  ResolutionX = 300,
  ResolutionY = 300
  };
  _printer = Printer.SelectPrinter(_printPro, printerName);
  _pdfExpress = new Accusoft.PdfXpressSdk.PdfXpress();
  _pdfExpress.Initialize();
  dynamic dirInfo = new DirectoryInfo(ImgPath + basketId + "_" + shopperId);
  FileInfo[] fileInfo = dirInfo.GetFiles().Where(x => x.Extension == ".tif" | x.Extension == ".pdf").ToArray();
  //Loop through each document
  foreach (var tmpFile in fileInfo)
  {
  var ext = tmpFile.Extension.ToLower();
  var fileName = tmpFile.FullName;
  var pgCount = ImageX.NumPages(_ixBase, fileName);
  for (var i = 1; i <= pgCount; i++)
  {
  _printJob = new PrintJob(_printer);
  ImageX ixTemp;
  if (ext == ".tif")
  {
  ixTemp = ImageX.FromFile(_ixBase, fileName, i);
  }
  else
  {
  _pdfExpress.Documents.Add(fileName);
  var pdfBitmap = _pdfExpress.Documents[i - 1].RenderPageToBitmap(i - 1, _pdfRenderOpt);
  ixTemp = ImageX.FromBitmap(_ixBase, pdfBitmap);
  pdfBitmap.Dispose();
  }

  var dib = ixTemp.ToHdib(false);
  _printJob.PrintDib(dib, 0, 0, ixTemp.ImageXData.Width, ixTemp.ImageXData.Height, _printJob.LeftMargin, _printJob.TopMargin, _printJob.PrintWidth, _printJob.PrintHeight, true);

  if (_pdfExpress.Documents.Count > 0)
  _pdfExpress.Documents.Clear();
  _printJob.Finish();
  ixTemp.Dispose();
  _printJob.Dispose();
  _printJob = null;
  }
  }
  _pdfExpress.Dispose();
  _printer.Dispose();
  _printPro.Dispose();
  _ixBase.Dispose();
  }
  catch (Exception ex)
  {
  if (_printJob != null)
  _printJob.Kill();
  throw;
  }
  }

  CodeBehind c asp.net #

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  MetalAsp.Net

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  Re: Looking up file extension C#

  Jun 17, 2014 02:50 PM|MetalAsp.Net|LINK

  Use two | instead of just one. So x.blah == blah || x.blah2 == blah2

  Edit: also use DirectoryInfo instead of dynamic to declare dirInfo.

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  Rion William...

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  Re: Looking up file extension C#

  Jun 17, 2014 03:08 PM|Rion Williams|LINK

  If you needed to check the extensions of each of your appropriate files, you could use the Path.GetExtension() method as seen below :

  FileInfo[] files = YourDirectory.GetFiles().Where(x => Path.GetExtension(x) == ".tif" || Path.GetExtension(x) == ".pdf");

  or using the String.EndsWith() method :

  FileInfo[] files = YourDirectory.GetFiles().Where(x => x.EndsWith(".tif") || x.EndsWith(".pdf"));

  CodeBehind c asp.net #

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