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PowerShell GUI with buttons, textbox and combobox



GUI makes life easier, but of course command line has a power of its own.

How to add a form in PowerShell with Buttons, TextBox and ComboBox?

Adding GUI forms in PowerShell must be done manually by code.

It’s not that hard, you just need to love PowerShell and see what it can do to automate IT administration and makes your life easier.

Anyway, code below introduces how to add GUI to PowerShell and it also illustrates how to make use of those GUI buttons and send a command to remote computers.

Code to add buttons, textbox and combobox in PowerShell, and how to execute a command after the button is clicked.

#initialize the main form
$form = new-object Windows.forms.form
$form.text = "Server Selection Form"

$form.minimumSize = New-Object System.Drawing.Size(600,300)
$form.maximumSize = New-Object System.Drawing.Size(600,300)

#add a button to the form
$button = new-object windows.forms.button
$button.text = "Close Me"

#action that the button will execute after it has been clicked
$button.add_click({$form.close()})


#add a textbox to the form
$theTbox = New-Object system.Windows.Forms.Textbox
$theTbox.location = New-Object system.Drawing.Size(0,50)
$theTbox.size = New-Object System.Drawing.Size(100,20)


#add a drop down combobox to the form
$the_combo = New-Object system.Windows.Forms.ComboBox
$the_combo.location = New-Object system.Drawing.Size(0,90)
$the_combo.size = New-Object System.Drawing.Size(200,20)

$the_combo.DropDownStyle = "Dropdownlist"

#add another button to the form
$Go_button = new-object windows.forms.button
$Go_button.text = "Do the Action"
$Go_button.location = New-Object system.Drawing.Size(0,190)
$Go_button.size = New-Object System.Drawing.Size(110,30)


#You can customized the command on this button
#Example below will shutdown the selected computer
#Invoke-command for remote computer can also be used (imagination is your friend 😊 )

$Go_button.add_click({Stop-Computer -ComputerName $theTbox.text})


#the “@” symbol will create an array out of the text file contents
$ComboList_Items = Get-Content -Path @("C:\dev\server_list.txt")

#Loop thru the text file or the array
#and add the contents to the combobox for selection
ForEach ($Server in $ComboList_Items) {

  $the_combo.Items.Add($Server)


}

$form.controls.add($theTbox)
$form.controls.add($button)
$form.controls.add($Go_button)

$form.controls.add($the_combo)
$form.Add_shown({$form.Activate()})


#action that will capture every time a value is selected on the combobox
$the_combo_SelectedIndexChanged=
{

 $theTbox.text= $the_combo.text

}

$the_combo.add_SelectedIndexChanged($the_combo_SelectedIndexChanged)

$form.ShowDialog()
#===== CODE ends here ======


#The contents of the text file just look like this:
Server-1
Server-2
Server-3
Server-4
Server-5
Server-6
Server-7
Localhost
Above contents is the one that is being read by this line below, change the path and the filename as necessary. It’s just for example purposes.
$ComboList_Items = Get-Content -Path @("C:\dev\server_list.txt")
Sample GUI PowerShell Output:

Check out this link on how to shutdown with PowerShell and ask for confirmation before proceeding.
https://quickbytesstuff.blogspot.com/2020/05/powershell-restart-remote-server-with.html

Cheers..till next time. :)


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