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' Add a reference to: ' C:\Program Files\Reference Assemblies\Microsoft\WindowsPowerShell\v1.0\System.Management.Automation.dll Imports System.Collections.ObjectModel Imports System.Management.Automation Imports System.Management.Automation.Runspaces Imports System.Text Imports System.IO Namespace Tools Public Class PowerShellScript Public Event StatusUpdate(ByVal status As String) Public Function RunScriptText(ByVal scriptText As String) As String 'Runs PS code and returns the response in string format 'Create a PS runspace and open it RaiseEvent StatusUpdate("Creating runspace") Dim myRunSpace As Runspace = RunspaceFactory.CreateRunspace myRunSpace.Open() 'Create a pipeline and load it with our script text RaiseEvent StatusUpdate("Creating pipeline") Dim myPipeline As Pipeline = myRunSpace.CreatePipeline myPipeline.Commands.AddScript(scriptText) 'add an extra command to ensure we get a string output myPipeline.Commands.Add("Out-String") 'Execute RaiseEvent StatusUpdate("Executing script") Dim results As Collection(Of PSObject) = myPipeline.Invoke 'Close the runspace RaiseEvent StatusUpdate("Closing runspace") myRunSpace.Close() 'Put the results in a single string RaiseEvent StatusUpdate("Returning results") Dim myStringBuilder As New StringBuilder For Each obj As PSObject In results myStringBuilder.AppendLine(obj.ToString) Next 'return the results Return myStringBuilder.ToString End Function Public Function LoadScriptFile(ByVal scriptFile As String) As String Try RaiseEvent StatusUpdate("Opening script file") Dim sr As New StreamReader(scriptFile) RaiseEvent StatusUpdate("Reading script contents") Return sr.ReadToEnd() Catch ex As Exception RaiseEvent StatusUpdate("Error reading file") Return "Write-Host 'The file could not be read.'" End Try End Function End Class End Namespace |