CODEWITHSUNDEEP
powershell
Gill-Bates
Gill-Bates

Reputation: 679

Powershell: Cannot convert value to type System.String

I have an array of Reciepients:

$reciepientList = @(
    "foo"
    "bar"
    #...
)

I want to send a Message to all of them with a function using REST:

function Send-Message{
    [CmdletBinding()]
    param (
        [parameter(Mandatory=$true)][String]$Message,
        [parameter(Mandatory=$true)][String]$Reciepient
    )
# My RESTful stuff goes here ...
Invoke-RestMethod ...
}

Sending my message fails:

Send-Message -Reciepient $reciepientList -Message "My message"

Output:

Send-Message: Cannot process argument transformation on parameter 'Reciepient'.
Cannot convert value to type System.String.

Any idea, how to tell Powershell to convert my Array to a String?

Upvotes: 1

Views: 6312

Answers (1)

Gill-Bates
Gill-Bates

Reputation: 679

@Theo: Thanks for pointing me to the type casting. It has solved my issue!

[CmdletBinding()]
param (
    [parameter(Mandatory = $true)][String]$Message,
    [parameter(Mandatory = $true)][String[]]$Reciepient
)

Upvotes: 2

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