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how to give message not helpmessage in $credential heading in params

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I want to assign message in credential declaration on very start of cmdlet

for example

param{

[validationNullorEmpty]

[param(mandatory=true, helpmessage="Enter Domain spec cred")]

$credential=[pscredential]::Empty

}

instead of helpmessage I want to add below Message

if ($credential -ne $null){$credential=Get-credential -Message "Add domain cred"}

because when I define function have no $credential then default window it show me the message "enter the credential" that I don't want I want my message "Add domain cred"

Actually this message will appear after first default window, so instead of get-credential default window I want to custom my window with my message, how to do that, instead of help message can I declare -Message in [param(mandatory=true, -Message="Enter Domain spec cred")] like this

Monday, April 22, 2019 2:52 PM

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So there is some default message when you run your function with the PSCredential object set to null? It's not overly clear what you are trying to accomplish.

You just want to propt the user with a custom message if creds are null right?

Monday, April 22, 2019 4:34 PM
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A "Param" statement is not close with "{}" - it is closed by "()".

\_(ツ)_/

Monday, April 22, 2019 7:40 PM
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Start with a correctly written param statement. I suggest taking so me time to read the help and to learn basic PowerShell before attempting complex operations.

param( [parameter(Mandatory = $true, helpmessage = "Enter Domain spec cred")] $credential )

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\_(ツ)_/
Monday, April 22, 2019 7:49 PM