Getting a pid of a process created in C#

Lets say that I'm trying to create a new process with the following code:

System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo.WorkingDirectory = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
p.StartInfo.FileName = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) + "\\AwesomeFile.exe";
p.StartInfo.Arguments = "parameter1 parameter2";
p.StartInfo.CreateNoWindow = true;
p.Start();

and right in the next line, I'll try to get a pid of that process with the following line:

MessageBox.Show(p.Id);

This line is giving me the "No process is associated with this object." error. A开发者_运维问答ny idea as to why this error occurs?

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Check the return value of Process.Start. In some cases, Process.Start can return false, in which case no Id will be associated with it.

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Do this System.Diagnostics.Process.GetProcessesByName("processname")[0].Id.