title: ASP.net download and save file in user folder
body: <p>I am trying to save a file to the user pc but I am not able to do it.
  This method gives error since is trying to save the file in C somewhere. I understand it is not approriate. I would like to save the file in the download folder or prompt the user with a file dialog.</p>
  
  <pre><code>void SaveReport(Telerik.Reporting.Report report, string fileName)
  {
      ReportProcessor reportProcessor = new ReportProcessor();
      Telerik.Reporting.InstanceReportSource instanceReportSource = new Telerik.Reporting.InstanceReportSource();
      instanceReportSource.ReportDocument = report;
      RenderingResult result = reportProcessor.RenderReport("PDF", instanceReportSource, null);
  
      using (FileStream fs = new FileStream(fileName, FileMode.Create))
      {
          fs.Write(result.DocumentBytes, 0, result.DocumentBytes.Length);
      }
  }
  </code></pre>
  
  <p>How can I save the file in the download folder of the user machine or prompt a filedialog to allow the user to choose the destination?</p>