How to Invoke Scripts Within a Cmdlet

This example shows how to invoke a script that is supplied to a cmdlet. The script is executed by the cmdlet, and its results are returned to the cmdlet as a collection of System.Management.Automation.PSObject objects.

To invoke a script block

1. The command verifies that a script block was supplied to the cmdlet. If a script block was supplied, the command invokes the script block with its required parameters.

   if (script != null)
   {
        WriteDebug("Executing script block.");
   
        // Invoke the script block with the required arguments.
        Collection<PSObject> PSObjects = script.Invoke(
            line,
            simpleMatch,
            caseSensitive
        );
       // more code as needed...
   }
   

2. Then, the script iterates through the returned collection of System.Management.Automation.PSObject objects and perform the necessary operations.

   foreach (PSObject object in PSObjects)
   {
       if (LanguagePrimitives.IsTrue(object))
       {
            result = new MatchInfo();
            result.Line = line;
            result.IgnoreCase = !caseSensitive;
            break;
       }
   }
   

See Also

Writing a Windows PowerShell Cmdlet