如何获取FileName，FilePath以将其存储在Variabl中，然后将该文件上传到asp.net

Question

I want to merge two files and save it is as new file.

eg

a1,a2 new a3

...and then upload that file which i have merge which is a3 .

I mean I am saving a file in a folder , i want when i save , i get exactly that f filename as well filepath.

here is my code.

protected void Button1_Click(object sender, EventArgs e)
{
     string fname = "";
     if (txtFile.HasFile)
     {
          try
          {
               HttpFileCollection uploadedFiles = Request.Files;

               // Get the HttpFileCollection
               string[] filespath = new string[15];
               for (int i = 0; i < uploadedFiles.Count; i++)
               {
                    HttpPostedFile hpfiles = uploadedFiles[i];
                    fname = Path.GetFileName(hpfiles.FileName);

                    if (hpfiles.ContentLength > 0)
                    {
                        hpfiles.SaveAs(Server.MapPath("~/Images/") + Path.GetFileName(hpfiles.FileName));
                            hpfiles.SaveAs(Server.MapPath(Path.Combine(@"~/Images/", fname)));
                        string filepath = Server.MapPath(@"~/Images/");
                        string path = filepath + fname;
                        filespath[i] = path;
                    }
               }

               // MergeFiles(@"C:\ENROLLDOCS\New Document.pdf"+DateTime.Now.ToFileTime(), filespath);
               MergeFiles(@"D:\Razim\MedFlow\tempp\New Document.pdf" + " " + DateTime.Now.ToFileTime() + ".pdf", filespath);
               // now i want to get the filename and filepath which i have merged and saved, for uploading.                       

           }
           catch (Exception ex)
           {
                Label1.Text = "The file could not be uploaded. The following error occured: " + ex.Message;
           }
      }
 }

Answer 1

iTextSharp is a C# PDF library that can read and write PDF's based on the iText library, it's free for open source... paid for commercial use. Here is an existing example of how to merge two PDF's using their library, you can easily adapt it to the file upload scenario.

Merging multiple PDFs using iTextSharp in c#.net