get pdf file from ftp server and view it without download it in mvc croe-CodePudding

I got pdf file from ftp server as byte then I converted it to ToBase64String and in front I used iframe. some files appear in the front and others are not.

My code to get file content from ftp server:

public byte[] GetFTPFile(string filePathFTP)
        {

            //String filePath = System.IO.Path.Combine(hosting.WebRootPath, "downloads")   "/try.pdf" ;
            //String ftpFilePath = "Images/taj123.png";
            WebClient request = new WebClient();
            request.Credentials = new NetworkCredential(userName, password);


            //NEED TO CHECK IF FILE IS EXIST
            byte[] fileData = request.DownloadData(filePathFTP);
            //System.IO.File.WriteAllBytes(filePath, fileData);
            return fileData;
        }

My code in controller:

public ActionResult Details(int id)
        {
            File file = fileRepo.Find(id);
            //file.Content = System.IO.Path.Combine(hosting.WebRootPath, "downloads")   "/try.pdf";
            file.Content = Convert.ToBase64String(ftpFiles.GetFTPFile(file.FilePath));
            return View(file);
        }

My code in cshtml:

    <iframe src="data:application/pdf;base64,@Model.Content" type="application/pdf"  style="height:100vh"></iframe>

CodePudding user response：

Try this in your Controller:

return new FileContentResult(content, "application/pdf");

Let me know about the result