[C # FAQ] C # How do I start another application or batch processing program in code?

Original URL: How can I run another application or batch file from my Visual C #. Net code?
Posted by: Duncan macenzie, msdn
This post applies to Visual C #. NET 2002/2003

If you want to run a command line Program , Or open a Windows application, or open the default web browser or email client, how do you # Code To implement this function?
In the following example, you can use the classes and methods in system. Diagnostics. process to complete the same task, or even do more.
Example 1: Regardless of the output result, you only need to run a command line program:

 Private    Void  Simplerun_click (  Object  Sender, system. eventargs E)  {
  System. Diagnostics. process. Start (@  "C: \ listfiles. Bat" );
}
 Example 2. Get the program running result and wait until the program is stopped (synchronous running program) Private     Void Runsyncandgetresults_click (  Object  Sender, system. eventargs e ){
System. Diagnostics. processstartinfo psi =
  New  System. Diagnostics. processstartinfo (@  "C: \ listfiles. Bat"  );
PSI. redirectstandardoutput =  True  ;
PSI. windowstyle = system. Diagnostics. processwindowstyle. hidden;
PSI. useshellexecute = False  ;
System. Diagnostics. Process listfiles;
Listfiles = system. Diagnostics. process. Start (PSI );
System. Io. streamreader myoutput = listfiles. standardoutput;
Listfiles. waitforexit (2000 );
   If  (Listfiles. hasexited)
{
  String  Output = myoutput. readtoend ();
  This  . Processresults. Text = output;
}
}

 
  example 3.  use the default browser on your machine to display the URL 
  private   void   launchunl_click (  Object   sender, system. eventargs e) {
   string   TargetUrl =@  http://www.duncanmackenzie.net  ;< br> system. diagnostics. process. start (TargetUrl); 
}< br> 
 In my opinion, the URL is displayed in a browser, for example The method is more reasonable than starting IE and using URL as the parameter. 
 the code in Example 3 starts the user's default browser, rather than IE. In this way, you are more likely to bring users the experience they want, 
 and you can use browsers with the latest connection information.