How to check that an argument to be not null when other argument is not present

[ankitdagreat71]

Below is the C# code where I am creating this powershell cmdlt which has two argument MaxAge and ContinuationToken. I would like

• MaxAge to be mandatory when Continuation token is not provided.
• ContinuationToken if provided to be mandatory and MaxAge to be optional.
• ContinuationToken cannot be null whenever it is provided and it should be prompted to user to provide that value

I am able to achieve my 1st two scenario but unable to achieve the last one. Below is my pwshell cmdlet and my C# code. Please advice:

[Cmdlet(VerbsCommon.Get, "ChangedRecordings", DefaultParameterSetName = GetChangedRecordingsCmd.ParamSetCloud)]
public class GetChangedRecordingsCmd : PwshCmd

{
protected const string ParamSetCloud = "Cloud";
protected const string ParamSetFile = "File";

[Parameter(Mandatory = true,
Position = 0, ParameterSetName = ParamSetCloud,
ValueFromPipeline = true,
ValueFromPipelineByPropertyName = true, HelpMessage = "Provide the maximum age of recordings from the change feed")]
[Parameter(Mandatory = false, ParameterSetName = ParamSetFile)]
public TimeSpan MaxAge { get; set; }

[Parameter(Position = 1,Mandatory = true,
ValueFromPipeline = true, ParameterSetName = ParamSetFile,
ValueFromPipelineByPropertyName = true, HelpMessage = "Provide a continuation token for the change feed")]

public string ContinuationToken { get; set; }

protected override void BeginProcessing()
{
if (ParameterSetName.Equals(ParamSetFile) && string.IsNullOrWhiteSpace(ContinuationToken))
{
WriteWarning("Continuation Token can't be null. Please pass a valid Continuation Token");
}
}

protected override void ProcessRecord()
{
//My opeartions
WriteObject(new { ContinuationToken = result, Recordings = recs });
}

Powershell Cmndlet(Token File path contains the Continuation token. As per above scenario that can be blank and I need to handle this in C#)

param (

  $TokenFilePath = 'C:\Users\Desktop\ContinuationToken.txt',

  $MaxAge = '2'

)

$existingToken = Get-Content -Path $TokenFilePath

$recordings = Get-ChangedRecordings -ContinuationToken $existingToken -MaxResults 10

Write-Host $recordings.Recordings.Count

$recordings.ContinuationToken|Set-Content -Path $TokenFilePath

$recs = $recordings.Recordings

 

• This topic was modified 1 week, 6 days ago by ankitdagreat71.

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