CODEWITHSUNDEEP
powershellparameterspowershell-2.0command-line-arguments
Shree
Shree

Reputation: 233

Powershell Argument List Based On Condition

I want to make a argument Mandatory based on the Switch Condition Something Like 

param(
[string]$para1,
[switch]$choice="Upgrade"
[string]$paraUpg 
[string]$paraInstall 
)

now if the choice is Upgrade I want to make $paraUpg mandatory and if $choice is Install then $paraInstall has to be mandatory

Upvotes: 1

Views: 1855

Answers (2)

danseery
danseery

Reputation: 486

You could try something like the following. Setup all of your parameters and if $choice="Upgrade" and $paraUpg is null or empty throw an exception. Repeat similarly for $choice="Install". You could then conditionally choose what to do after the parameter check based on the parameters chosen.

param(
    [string]$para1,
    [string]$choice="Upgrade",
    [string]$paraUpg,
    [string]$paraInstall
    )

#check if choice is "Upgrade" and paraUpg is empty
if(($choice -eq "Upgrade") -and ([string]::IsNullOrEmpty($paraUpg)))
{
    throw "paraUpg is a required parameter"
}
#check if choice is "Install" and paraInstall is empty
elseif (($choice -eq "Install") -and ([string]::IsNullOrEmpty($paraInstall)) )
{
    throw "paraInstall is a required parameter"
}

Upvotes: 1

Rohit416
Rohit416

Reputation: 3486

first of all its PowerShell which comes along with windows 7 as one of its added utilities.

you have not given any detail about what have you done so far. I suspect you want something like this.

in your PowerShell script declare params preferably at top.

param([string]$UserName, [string]$Password, [string]$MachineName)

use these parmas within your powershell script wherever required. Now create a batch file from where you can pass values to these params like this.

@powershell -ExecutionPolicy Unrestricted -FILE YourPowerShellScript.ps1 "UserName" "Password" "MachineName"

i have specified Policy rights within batch file so you don't have to mention each time when you run the script on different machines. Hope it helps.

Upvotes: 0

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