C# equivalent of PowerShell $input variable

Question

I am creating PowerShell cmdlets in C# by extending the PSCmdlet class. I need to get the entire Pipelined input to use in the C# code. I tried having a parameter with properties set as:

[Parameter(Mandatory = true, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true)]
public Object Connection;

When I try to execute the cmdlet by piping in a list of items, I get one item at a time to process in the C# code.

$a=@("value1","value2")
$a | cmdlet-name

I need to get the entire piped input to process in my C# code. I found that this can be obtained in PowerShell using the $input variable. Is there a C# equivalent of this $input PowerShell variable?

Keith Hill · Accepted Answer · 2014-02-27 16:59:43Z

1

Not that I know of. However, you can use the ProcessRecord method to accumulate pipeline objects (from the property bound to pipeline input) into a collection and then process the accumulated objects in your EndProcessing method.

answered Feb 27, 2014 at 16:59

Keith Hill

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2 Comments

Vijay Over a year ago

I am not sure but is it that for each pipelined item the ProcessRecord method is executed once? if yes, is there a way to find out the current pass number of the ProcessRecord method?

Keith Hill Over a year ago

Yes ProcessRecord is executed for each pipeline object. Keep in mind that a single pipeline object could be an array depending on how you define your property that is pipeline bound. I'm not aware of a built-in way to determine the pass number but you can always add an int field to your cmdlet and increment it each time ProcessRecord gets called.

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