We help IT Professionals succeed at work.

powershell variable inside quotes

DevSupport
DevSupport asked
on
462 Views
Last Modified: 2017-03-18
Hi Experts,

I am trying to get the value from a dropdown into the Invoke Command to Start a windows service in a remote system.

When I do write-host $dispname I get the value as "Some Service" but when I try to run the Invoke-Command I get the error below:


function Start-TC{
$dispname = $objAppDropDown.SelectedItem
write-host $dispname
Invoke-Command -Computername $objappsvrname.Text -ScriptBlock { Start-Service -DisplayName "$dispname"  }

}

Error:
With "$dispname" in quotes:

Cannot bind argument to parameter 'DisplayName' because it is an empty string.

Without quotes:
Cannot bind argument to parameter 'DisplayName' because it is null.

Full script attached
scr-1.txt
Comment
Watch Question

CERTIFIED EXPERT
Most Valuable Expert 2019
Most Valuable Expert 2018
Commented:
Unlock this solution and get a sample of our free trial.
(No credit card required)
UNLOCK SOLUTION
Qlemo"Batchelor", Developer and EE Topic Advisor
CERTIFIED EXPERT
Top Expert 2015
Commented:
Unlock this solution and get a sample of our free trial.
(No credit card required)
UNLOCK SOLUTION

Author

Commented:
If we have more than one arguments for Scriptblock, should we add them to argument list separated by spaces?

Also can we send a script file to be executed in a remote system through scriptblock?

Please let me know.

Thank You!
DevSupport
Qlemo"Batchelor", Developer and EE Topic Advisor
CERTIFIED EXPERT
Top Expert 2015
Commented:
Unlock this solution and get a sample of our free trial.
(No credit card required)
UNLOCK SOLUTION

Author

Commented:
Thank You so much!

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Empower Your Career
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Unlock the solution to this question.
Thanks for using Experts Exchange.

Please provide your email to receive a sample view!

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.