How to capture a Powershell CmdLet's verbose output when the CmdLet is programmatically Invoked from C#

Question

BACKGROUND

• I am using Powershell 2.0 on Windows 7.
• I am writing a cmdlet in a Powershell module (\"module\" is new to Powershell 2.0).
• To test

Answer 1

1.        string scriptFile = "Test.ps1";
2.        using (PowerShell ps = PowerShell.Create())
3.        {
4.          const string getverbose = "$verbosepreference='continue'"; 
5.          ps.AddScript(string.Format(getverbose));
6.          ps.Invoke();
7.          ps.Commands.Clear();
8.          ps.AddScript(@".\" + scriptFile);
9.          ps.Invoke();
10.         foreach (var v in ps.Streams.Verbose)
11.         {
12.               Console.WriteLine(v.Message);
13.         }
14.       }

Important lines are line 5 and 6. This basically set the $verbosepreference for the session and for upcoming new commands and scripts.