How can I confirm that I do want to disable the network adapter in c#?

Question

I have looked at How do I automatically answer "yes" to a prompt in Powershell? but those solutions did not work.

I have tried adding -Force as a parameter but I get the error:

Get-NetAdapter : A parameter cannot be found that matches parameter name 'Force'.

I am trying to run the following powershell script in c# to disable WiFi:

using (PowerShell PowerShellInstance = PowerShell.Create())
{
    PowerShellInstance.AddScript($"get-netadapter wi-fi | disable-netadapter");
    PowerShellInstance.Invoke();
}

But when I do I get the error:

A command that prompts the user failed because the host program or the command type does not support user interaction. The host was attempting to request confirmation with the following message: Are you sure you want to perform this action? Disable-NetAdapter 'Wi-Fi'"'

How can I tell the script that I do want that to happen, via c#?

Have you tried Confirm instead of Force? [PowerShell guidelines for -Confirm, -Force, and -WhatIf](https://stackoverflow.com/questions/34749333/powershell-guidelines-for-confirm-force-and-whatif) and [PowerShell Common Parameters](https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_commonparameters?view=powershell-6) — A Friend, Dec 05 '19 at 15:45
Sorry I meant `-Confirm:$false` It's an opposite parameter you -don't- want it to confirm — HAL9256, Dec 05 '19 at 15:52
@HAL9256 it turns out `confirm:$false` works. still learning the ropes on this powershell stuff! — Matt Ellen, Dec 05 '19 at 16:04

score 3 · Accepted Answer · answered Dec 05 '19 at 16:09

Simply set the confirmation to false (you don't want it to confirm).

using (PowerShell PowerShellInstance = PowerShell.Create())
{
    PowerShellInstance.AddScript($"get-netadapter wi-fi | disable-netadapter -Confirm:$false");
    PowerShellInstance.Invoke();
}

The other method, when using C#, is to set the confirmation preference to None in the Initial Session state:

var sessionState = InitialSessionState.CreateDefault();
sessionState.Variables.Add(new SessionStateVariableEntry("ConfirmPreference", ConfirmImpact.None, ""));

using (PowerShell PowerShellInstance = PowerShell.Create(sessionState))
{
    PowerShellInstance.AddScript($"get-netadapter wi-fi | disable-netadapter");
    PowerShellInstance.Invoke();
}

How can I confirm that I do want to disable the network adapter in c#?

1 Answers1