Dec 03 2020 12:30 AM - edited Dec 03 2020 12:36 AM
On Windows 10, in C# I am trying to call a powershell script via Pipeline.Invoke() to retrieve all the disks on a network server, for each server on a network. But can't get it to return the data to C# when there are multiple disks on a server.
I have the following C# code:
```
foreach (var server in _collServers)
{
Pipeline pipeline2 = runspace.CreatePipeline();
pipeline2 = runspace.CreatePipeline();
scriptCommand = new Command(@"C:\DEV\Monitor\Monitor\bin\scripts\GetDisks.ps1");
pipeline2.Commands.Add(scriptCommand);
var collDisks = pipeline2.Invoke();
foreach (var item in collDisks)
{
var s = item.ToString();
}
}
```
which executes the following powershell script (GetDisks.ps1), with ComputerName hardcoded to a specific server for now:
```
$disks = Get-CimInstance -ClassName CIM_LogicalDisk -ComputerName SERVER01 | Where-Object { ($_.DeviceID -ge 'C') -and ($_.DriveType -eq 3)} | Select-Object DeviceID, VolumeName, Size, Freespace
$disksout = [System.Collections.Generic.List[PSObject]]::New()
ForEach($d in $disks)
{
$disk = [PSObject] @{
'DeviceID' = $d.DeviceID
'VolumeName' = $d.VolumeName
'Size' = $d.Size
'Freespace' = $d.Freespace
}
$disksout.Add($disk)
}
$disksout
```
but it doesnt return a PSObjects collection into collDisks.
It works in the ISE (and every re-arrangement I try seems to work there).
It works if I run it for my local machine by removing -ComputerName SERVER01
```
$disks = Get-CimInstance -ClassName CIM_LogicalDisk | Where-Object { ($_.DeviceID -ge 'C') -and ($_.DriveType -eq 3)} | Select-Object DeviceID, VolumeName, Size, Freespace
```
It doesnt make any difference if I try using PSCustomObject instead, or creating the object collection different ways. I suspected its a type conversion issue, but using GetType() in various locations havent found the issue. Would appreciate if anyone else can cast light on the problem.