Adding Code after calling Response.TransmitFile doesn't Execute

Question

User248267340 posted

I have a small routine to upload a file, modify it, then download it.

It appears that after using the class "Response" any code after it doesn't get executed.

Is there a way to overcome that?

When the routine prompts end-user to download file, I'd like to delete it afterwards. It seems I can't do that.

Answer 1

User409696431 posted

Post the code (the smallest sample that will illustrate the problem) where you use Response.  The answer to your question depends on it.

For example, if you are calling

HttpContext.Current.Response.End();
or
HttpContext.Current.Response.Close():

before you try to delete the file, don't do that.  Just call

HttpContext.Current.Response.Flush(); 

instead and see if that solves your problem.

Answer 2

User248267340 posted

Thanks Kathy, for your assistance. I added a line to flush, but it didn't help. Here's my code:

            if (FileUpload1.HasFile)
            {
                myServerPath = Server.MapPath(FileUpload1.FileName);
                string myClientPath = Path.GetFullPath(FileUpload1.PostedFile.FileName);
                FileUpload1.SaveAs(myServerPath);

                string mydir = Path.GetDirectoryName(myServerPath);                         
                wfilename = Path.GetFileNameWithoutExtension(myServerPath);                 // Save just the filename
                wext = Path.GetExtension(myServerPath);                                     // Save just the extension

                updatedfilename = wfilename + "_Updated" + wext;
                WorkFile = Path.Combine(mydir, updatedfilename);

                Fix_the_Data(myServerPath, WorkFile);					    // Fix the file contents.
                File.Delete(myServerPath);

                string downfile = "~/MyTempFolder/" + updatedfilename;              
                string arg1 = "Content-Disposition";
                string arg2 = "attachment; filename=" + updatedfilename;

                Response.ContentType = "text/plain";
                //Response.AppendHeader("Content-Disposition", "attachment; filename=Test.txt");  	
                Response.AppendHeader(arg1, arg2);
                Response.TransmitFile(Server.MapPath(downfile));
                Response.End();
		Response.Flush();

		File.Delete(WorkFile);				// This line doesn't get executed.
            }

Answer 3

User409696431 posted

Please look at my response again, and follow it. 

"For example, if you are calling

HttpContext.Current.Response.End();
or
HttpContext.Current.Response.Close():

before you try to delete the file, don't do that.  Just call

HttpContext.Current.Response.Flush(); "

Again, don't use Response.End().  Just use Response.Flush().

Answer 4

User248267340 posted

I see. I Interpreted your statement differently.

Thank you so very much - that is the perfect solution.