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C# open a pdf file using default application and delete the file after application is closed

I am converting a .txt file to a pdf and need to display the pdf to the user. For that, I have created a temporary .pdf file and created a process to open the file. This works fine when there is adobe acrobat installed. This fails when there is no default application. For my case, the pdf is opened in internet explorer and I get No process is associated with this object exception. Is there any other way to find out when the file is being closed so that I can delete it later on.
My code is like this.
HtmlToPdf htmlToPdf = new HtmlToPdf(pdfPrintOptions);
string tmpFileName = "zx" + DateTime.Now.Ticks + "x.pdf";
//Iron pdf does not handle in-memory pdf viewing
//convert it to pdf
htmlToPdf.RenderHTMLFileAsPdf(fileWithPath).SaveAs(tmpFileName);
// TempFileCollection tmpFileCollection = new TempFileCollection();
//Use windows process to open the file
Process pdfViewerProcess = new Process
{
EnableRaisingEvents = true, StartInfo = {FileName = tmpFileName}
};
pdfViewerProcess.Start();
pdfViewerProcess.WaitForExit(); **Failing in this line**
//Delete temporary file after the viewing windows is closed
if (File.Exists(tmpFileName))
{
File.Delete(tmpFileName);
}
Similar questions do not seem to provide a workaround for this problem. Any help will be appreciated. Thanks.

You have to define tmpFileName in global variable and use Event Exited like this:
try{
Process myProcess = new Process();
myProcess.StartInfo.FileName = tmpFileName;
myProcess.EnableRaisingEvents = true;
myProcess.Exited += new EventHandler(myProcess_Exited);
myProcess.Start();
}
catch (Exception ex){
//Handle ERROR
return;
}
// Method Handle Exited event.
private void myProcess_Exited(object sender, System.EventArgs e){
if (File.Exists(tmpFileName))
{
File.Delete(tmpFileName);
}
}
Hope it can help you
Update my answers:
If it still not working. Try this answers

I would just save the PDF file in the TEMP folder.
Either in Windows User TEMP folder or your App can create a TEMP folder. If you create a TEMP folder just delete every file when your app closed.
string filePath = Path.GetTempPath() + "yourfile.pdf";
//Writer your file to Path
//File.WriteAllBytes(filePath, content);
Process.Start(filePath);

C# run a vbscript encoded file without the .vbe extension using process start

I can use process start and run a standard vbscript without its .vbs extension (see my code below) but how do you run a vbscript file that has been encoded using the VBScript Encoder object without the .vbe extension?
Process process = new Process();
process.StartInfo.FileName = #"wscript.exe";
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.StartInfo.Arguments = "//e:vbscript noExtensionFile";
process.Start();

If you're trying to run an encoded VBScript file, you want the VBScript.Encode engine rather than the VBScript engine. Try using //e:VBScript.Encode as your first argument to wscript.

Assuming your problem is with the file not having an extension and you can rename it you could do something like:
string filename = ....
if (!Path.HasExtension(filename))
{
string t = Path.ChangeExtension(filename, ".vbe");
File.Move(filename, t);
filename = t;
}
// rest of your code

Text content in pdf is not converted using pdf2swf

I am running c# application in service mode. And i am using pdf2swf tool to convert odf to swf format. Images saved in pdf is converting. But if any test adding to pdf is not getting converted in service mode.
But when run as UI mode(Consoleapplication.exe) then everything is getting converted.
string inputFileName = this.Filename;
string outputFileName = inputFileName.Replace("pdf", "swf");
StringBuilder sb = new StringBuilder();
sb.AppendFormat("{0} -o {1}", inputFileName, outputFileName);
string executingDirPath = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase).Replace("file:\\", "");
string dataDirectoryPath = Path.Combine(executingDirPath, "pdf2swf.exe");
ProcessStartInfo psi = new ProcessStartInfo(dataDirectoryPath, sb.ToString());
psi.UseShellExecute = false;
System.Diagnostics.Process pdf2swf = new System.Diagnostics.Process();
pdf2swf.StartInfo = psi;
pdf2swf.Start();
pdf2swf.WaitForExit();
pdf2swf.Close();
pdf2swf.Dispose();
Regards
Sangeetha

Direct using process to start pdf2swf.ext maybe had some privilege problems.I used another way to solve this problem,write a batch file,then running the batch file by process.
Batch file sample:
c:
cd C:\Program Files (x86)\SWFTools\
pdf2swf.exe -f -T 9 -t "%1" -o "%2"
Code in program:
Process p = new Process();
string path = basePath + "/plugin/ConvertToSwf.bat";//batch file path
ProcessStartInfo pi = new ProcessStartInfo(path, filePath + " " + swfPath);//passing the file path and converted file path to batch file
pi.UseShellExecute = false;
pi.RedirectStandardOutput = true;
p.StartInfo = pi;
p.Start();
p.WaitForExit();

I faced a similar problem recently. I solved the issue by adding a separate console application(Consoleapplication.exe) with administrative-rights that runs on my server without shell.
Also, try to upgrade to the newest version of pdf2swf.

FYI. I recently had this problem (thought it was fonts not being embedded but actually was missing all text in converted swf). What fixed it for me was to set:
pi.UseShellExecute = false;
AND set the working directory;
pi.WorkingDirectory = "C:\windows\temp"; // path where read & write is

Executing BatchFile from C# program

I am writing the batch file and executing it through C# program.
Writing Batch file :
I will get the Path, Executable name and arguments from app.config and write them to a batch file.
Executing Batch file :
Once I write the batch file I pass the file name to below function which executes the batch file to launches an application.
Problem :
My program will write a lot of batch files which are executed immediately after each and every file is written. I find that, some times the applications are not started which means that batch files are not executed. I didn't even get any error messages or prompts for this failure of batch file execution.
Expected solution :
Any problem in executing the batch file, I should be able to log it or prompt an error.
Code that executes Batch File :
System.Diagnostics.ProcessStartInfo procinfo = new System.Diagnostics.ProcessStartInfo("cmd.exe");
procinfo.UseShellExecute = false;
procinfo.RedirectStandardError = true;
procinfo.RedirectStandardInput = true;
procinfo.RedirectStandardOutput = true;
System.Diagnostics.Process process = System.Diagnostics.Process.Start(procinfo);
System.IO.StreamReader stream = System.IO.File.OpenText(BatchPath + LatestFileName);
System.IO.StreamReader sroutput = process.StandardOutput;
System.IO.StreamWriter srinput = process.StandardInput;
while (stream.Peek() != -1)
{
srinput.WriteLine(stream.ReadLine());
}
Log.Flow_writeToLogFile("Executed .Bat file : " + LatestFileName);
stream.Close();
process.Close();
srinput.Close();
sroutput.Close();

I'm not sure where your problem lies specifically but I've had no problems with the following code:
using (FileStream file = new FileStream("xyz.cmd", FileMode.Create)) {
using (StreamWriter sw = new StreamWriter(file)) {
sw.Write("#echo ====================\n");
sw.Close();
}
}
Process p = new Process();
p.StartInfo.UseShellExecute = false;
p.StartInfo.FileName = "xyz.cmd";
//p.StartInfo.RedirectStandardOutput = true;
p.Start();
//String s = p.StandardOutput.ReadLine();
//while (s != null) {
// MessageBox.Show(s);
// s = p.StandardOutput.ReadLine();
//}
p.WaitForExit();
Obviously that's been cut down a bit for the purposes of hiding my "secret sauce" but that's code currently being used in production without issues.
I do have one question. Why don't you execute the cmd file directly rather than running cmd.exe?
Probably the first thing I'd do is to print out the BatchPath + LatestFileName value to see if you're creating any weirdly named files which would prevent cmd.exe from running them.

Auto FTP from a Directory

I want to monitor a directory and FTP any files that are place there to an FTP location. does anyone know how to do this in c#?
Thanks
EDIT: Anyone know of a good client that can monitor a directory and FTP and files placed in it?

I combination of the System.IO.FileSystemWatcher and System.Net.FtpWebRequest/FtpWebResponse classes.
We need more information to be more specific.

When used in conjunction with the FileSystemWatcher, this code is a quick and dirty way to upload a file to a server.
public static void Upload(string ftpServer, string directory, string file)
{
//ftp command will be sketchy without this
Environment.CurrentDirectory = directory;
//create a batch file for the ftp command
string commands = "\n\nput " + file + "\nquit\n";
StreamWriter sw = new StreamWriter("f.cmd");
sw.WriteLine(commands);
sw.Close();
//start the ftp command with the generated script file
ProcessStartInfo psi = new ProcessStartInfo("ftp");
psi.Arguments = "-s:f.cmd " + ftpServer;
Process p = new Process();
p.StartInfo = psi;
p.Start();
p.WaitForExit();
File.Delete(file);
File.Delete("f.cmd");
}