Calling PowerShell's where-object from C#

问题

How can I call Where-Object (without filter) from C#? I can't parse output, because I want to pass it to pipeline(not in example below).

PS:

Get-MailboxPermission username | Where-Object {$_.AccessRights -match "FullAccess" -and $_.IsInherited -eq $False}

C#:

Collection<PSObject> results = null;

Command command1 = new Command("Get-MailboxPermission");
command1.Parameters.Add("Identity", mailbox);
command1.Parameters.Add("DomainController", _domainController);
//I cannot use Filter. This is not possible in PS also.
//command1.Parameters.Add("Filter", "AccessRights -match \"FullAccess\"");

This question is simmilar to: PowerShell WhereObjectCommand from C# That answer is not enough for my problem.

回答1:

Check the below code sample. I have updated a sample from code project here as per your requirements.

Note:

1. To add quotes to your command i.e. script text escape quotes by using \"

2. To add { or } brace to the script text use double curly braces instead to escape it inside String.Format like {{ or }}

   // create Powershell runspace
   Runspace runspace = RunspaceFactory.CreateRunspace();
   
   // open it
   runspace.Open();
   
   // create a pipeline and feed it the script text
   Pipeline pipeline = runspace.CreatePipeline();
   
   //Getting all command variables
   string computerName = "YourComputerName";
   string matchingPattern = "con";
   
   //Create Script command
   String customScriptText = String.Format("Get-Process -ComputerName {0} | Where-Object {{$_.ProcessName -match \"{1}\"}}", computerName,matchingPattern);
   
   pipeline.Commands.AddScript(customScriptText);
   
   // add an extra command to transform the script output objects into nicely formatted strings
   // remove this line to get the actual objects that the script returns.
   pipeline.Commands.Add("Out-String");
   
   // execute the script
   Collection<PSObject> results = pipeline.Invoke();
   
   // close the runspace
   runspace.Close();
   
   // convert the script result into a single string
   StringBuilder stringBuilder = new StringBuilder();
   foreach (PSObject obj in results)
   {
       stringBuilder.AppendLine(obj.ToString());
   }
   

When you apply the above working sample to your problem you will need to change couple of lines like below:

    //Getting all command variables
    string username = "YourUserName";

    //Create Script command
    String customScriptText = String.Format("Get-MailboxPermission {0} | Where-Object {{$_.AccessRights -match \"FullAccess\" -and $_.IsInherited -eq $False}}", username);

来源：https://stackoverflow.com/questions/36796176/calling-powershells-where-object-from-c-sharp