Advertisement

08.24.2008 at 01:53AM PDT, ID: 23673425
[x]
Attachment Details

Running a powershell command from C#

[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!
7.2
Zone:

MSH/Monad PowerShell

Tags:

Powershell, scripting, C#
This is related to EE issue:
http://www.experts-exchange.com/Programming/Languages/Scripting/MSH-Monad/Q_23666325.html

I am trying to run a PS command from my C# event handler  and get the following error
"The term 'write-error Error 2>&1 | out-null' is not recognized as a cmdlet, function, operable program, or script file. Verify the term and try again."

Attached is my C# method that runs a PS command

The invocation is done by:

const string COMMAND = "write-error Error 2>&1 | out-null";
 QPSCmdlet.RunCommand(COMMAND, new Dictionary<string, object>());

This is done in order to change the $? value to false

Thanks
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:

public static string RunCommand(string command, IDictionary<string, object> dictionary)
        {
            // create Powershell runspace
 
            Runspace runspace = RunspaceFactory.CreateRunspace();
 
            // open it
 
            runspace.Open();
 
            var cmd = new Command(command);
            foreach (var pair in dictionary)
            {
                cmd.Parameters.Add(pair.Key, pair.Value);
            }
            // create a pipeline and feed it the command
 
            Pipeline pipeline = runspace.CreatePipeline();
            pipeline.Commands.Add(cmd);
 
            Collection<PSObject> results = pipeline.Invoke();
 
            // close the runspace
 
            runspace.Close();
 
            // convert the command result into a single string
 
            var stringBuilder = new StringBuilder();
            foreach (PSObject obj in results)
            {
                stringBuilder.AppendLine(obj.ToString());
            }
 
            return stringBuilder.ToString();
        }
Start your 7 day free trial to see this answer
Answered By: BSonPosh
Expert Since: 08/21/2007
Accepted Solutions: 423
Computer Expertise: Advanced
BSonPosh has been an Expert for 1 year 4 months, during which he has posted 1977 comments and answered 423 questions. BSonPosh is just one of 49 experts in the MSH/Monad PowerShell Zone. 1 expert collaborated on this answer, which was graded a "B" by the asker.
 
 
20081119-EE-VQP-48 / EE_QW_EXPERT_20070906