Using parameter array in Azure Automation Powershell script

Question

For a function I want to use an array of DayOfWeek to exclude certain days from the automation script. For that I've setup the following function:

Param
(
    [Parameter (Mandatory= $true)]
    [ValidateNotNullOrEmpty()]
    [DayofWeek[]] $ExcludeDays
)

foreach ($ExcludeDay in $ExcludeDays)
{
    Write-Output $ExcludeDay
}

In the Azure testpane I've included the array as follows:

and this is the error it returns:

Failed
Cannot process argument transformation on parameter 'ExcludeDays'. Cannot convert value "Monday, Friday, Saturday" to type "System.DayOfWeek[]".

I've tried it simularly in Powershell by creating a function that takes the same parameter array and had no issue with similar input. Anybody knows how to get it working?

I reckon that's because what's being passed in is actually a [string]. You should change your parameter definition to match the incoming type and then perform the parsing/conversion in the body of your function e.g. $ExcludeDaysString -split "," — gvee
– gvee, Commented Jul 15, 2019 at 7:13

Joy Wang · Accepted Answer · 2019-07-15 07:19:26Z

5

You should pass them as ['Monday','Friday','Saturday'].

answered Jul 15, 2019 at 7:19

Joy Wang

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Blue Clouds · Accepted Answer · 2020-09-08 18:54:17Z

1

You should pass them as ['Monday','Friday','Saturday']. as Joy answered

another solution would be get input as Monday,Tuesday,Wednesday

and split it.

$CharArray = $InputString.Split(",")

answered Sep 8, 2020 at 18:54

Blue Clouds

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