Yes it did. I used Reflector to examine the code that's located in Process.Start(). When ProcessStartInfo.UseShellExecute = true (which it is by default) it eventually does a Thread.Join() which caused the problem. When I set it to false it used the standard win32 api to start the process and wait which worked.
Thanks, Mike On Thu, Apr 24, 2008 at 10:35 AM, Peter Ritchie < [EMAIL PROTECTED]> wrote: > Does it make any difference if you set ProcessStartInfo.UseShellExecute to > false? > > On Thu, 24 Apr 2008 10:23:23 -0500, Mike Andrews > <[EMAIL PROTECTED]> wrote: > > >I'm having a particular problem that I need to resolve but can't seem to > >find the answer. > > > >I have a Winform application that does various processes and spawns > several > >threads to do various bits of work. > > > >On one of the threads it spawns another thread that in turn uses the > >Process.Start() method to start a new process (BCP in this case) to upload > >some data to SQL Server. > >Now... when I run this app from a console/command-line it works fine and > no > >process gets hung. When it's run from the winform app it hangs on the > >Process.Start() method and doesn't return albeit the BCP executes and > exits > >normally. > > > >I've examined the threads and the thread is in a sleep, wait, or join > state. > > > >Here's a partial list of the thread call stack: > > > >[In a sleep, wait, or join] > >System.dll!System.Diagnostics.ShellExecuteHelper.ShellExecuteOnSTAThread > () + > >0x77 bytes > >System.dll!System.Diagnostics.Process.StartWithShellExecuteEx > (System.Diagnostics.ProcessStartInfo > >startInfo) + 0x2d8 bytes > >System.dll!System.Diagnostics.Process.Start() + 0x80 bytes > >... > > > >I do have a Process.WaitForExit() method call after the Process.Start() > call > >but it never exits the Process.Start(). > > > >Here's my code that executes the process: > > > >Process p = new Process(); > >p.StartInfo.FileName = "bcp.exe"; > >p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; > >p.StartInfo.Arguments = arguments.ToString(); > >p.Start(); > > > > =================================== > This list is hosted by DevelopMentor(R) http://www.develop.com > > View archives and manage your subscription(s) at > http://discuss.develop.com > =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
