invoke powershell with .net

[pengjun721]

hello

First , use of VS2010 to build a project, reference System.Management.Automation.dll,
and then call the Veeam cmdlet:"Get-VBRBackup" and "Get-VBRServer" returned values are correct,
but the implementation of "Find-VBRResourcePool" access resource pool, value iempty

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            using (Runspace runspace = RunspaceFactory.CreateRunspace())
            {
                runspace.Open();

                //Create Pipeline            
                using (Pipeline pipeline = runspace.CreatePipeline())
                {
                    pipeline.Commands.AddScript("Add-PSSnapin VeeamPSSnapIn");
                    pipeline.Commands.AddScript("$rp = Get-VBRBackup | where {$_.JobName -eq 'BackupJob1'} | Get-VBRRestorePoint|where {$_.VMName -eq 'vm--test-Win2K3R2wSP2'}");
                    pipeline.Commands.AddScript("$server = Get-VBRServer | where {$_.Name -eq 'hke-ssvr1.dyxnet.com'} ");                    
                    pipeline.Commands.AddScript("$server ");//can get data
                    pipeline.Commands.AddScript("$res = Find-VBRResourcePool -Server ($server) | where {$_.Name -eq 'vctest2'} ");
                    pipeline.Commands.AddScript("$res");//empty
                    pipeline.Commands.AddScript("$datast = Find-VBRDatastore -Server ($server) | where {$_.Name -eq 'stogp1_m800tnas1'}");
                    pipeline.Commands.AddScript("Start-VBRRestoreVM -ResotePoint $rp -Server ($server) -ResourcePool ($res) -Datastore ($datast) -VMName 'vm--test-Win2K3R2wSP2' -DiskType 'thin' -PowerUp $TRUE");

                    //out-string
            pipeline.Commands.Add("Out-String");

                    //get return string
            Collection<PSObject> results = pipeline.Invoke();

                    StringBuilder stringBuilder = new StringBuilder();
                    foreach (PSObject obj in results)
                    {
                        stringBuilder.AppendLine(obj.ToString());
                    }
                    runspace.Close();
                    return stringBuilder.ToString();//return
                }
            }

use "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" or "veeam in powershell toolkit" to call this cmdlet,return value is right
Only when the call with System.Management.Automation.dll to call "Find-VBRResourcePool" or " Find-VBRDatastore", the value is null

[Sethbartlett]

And you stated that this line works outside of doing it through .net:

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Find-VBRResourcePool -Server ($server) | where {$_.Name -eq 'vctest2'}

This should work, I don't see why it wouldn't. It's not giving any errors or anything and it just runs smoothly?

[pengjun721]

thaks for your help
oh, I check the Help document :the "Find-VBRResourcePool" cmdlet "Server" parameter is not acceptable "Pipeline
Input" way to pass values

Find-VBRResourcePool
This cmdlet returns a list of all resource pools on the specified ESX(i) host.
Syntax
Find-VBRResourcePool [-Server] <CHost>
Parameters :
Parameter Description Required Pipeline Input
Server Specify an object of the ESX(i) host True False

so...How to call it in. NET

I try to use the following method to carry out, the result still empty,code:

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 Pipeline pipeline_rp = runspace.CreatePipeline();
                    Command cmd_rp = new Command("Find-VBRResourcePool");
                    cmd_rp.Parameters.Add("Server", ps_vbrserver);
                    pipeline_rp.Commands.Add(cmd_rp);
                    Collection<PSObject> vbrResourcePools = pipeline_rp.Invoke();

                    //find vctest2 ResourcePool
            IEnumerable<PSObject> find_vctest2 = from ps in vbrResourcePools
                                                                              where ps.Members["Name"].Value.ToString() == "vctest2"
                                                                              select ps;

                    //save the first Resource Pool                    
           if (find_vctest2.Count() == 0)//it's empty
                        throw new Exception("can't not find VBRResourcePool"); 
                    PSObject ps_vbrResourcePool = find_vctest2.ElementAt(0);

[Sethbartlett]

I guess one important thing, have it output ALL variables to a file to see if $Rp is getting data, etc. You could try putting them on one line. So these lines:

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                    pipeline.Commands.AddScript("$server = Get-VBRServer | where {$_.Name -eq 'hke-ssvr1.dyxnet.com'} ");                    
                    pipeline.Commands.AddScript("$server ");//can get data
                    pipeline.Commands.AddScript("$res = Find-VBRResourcePool -Server ($server) | where {$_.Name -eq 'vctest2'} ");

Turn this into:

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pipeline.Commands.AddScript("$server = Get-VBRServer | where {$_.Name -eq 'hke-ssvr1.dyxnet.com'};$res = Find-VBRResourcePool -Server ($server) | where {$_.Name -eq 'vctest2'} ")

This puts it all on one line. You could also maybe try:

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 pipeline.Commands.AddScript("$res = Find-VBRResourcePool -Server (Get-VBRServer | where {$_.Name -eq 'hke-ssvr1.dyxnet.com'}) | where {$_.Name -eq 'vctest2'} ");