Tool Launcher Menu in PowerShell

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akosijesyang asked Oct 16, '21 akosijesyang commented Oct 22, '21

Tool Launcher Menu in PowerShell

Hello - I'm currently working on a PS script which launches different kind of tools similar to sconfig in Windows Server Core systems. Since the tool has main menu for tools selection, there's also sub-menu on it and I want to stay on that sub-menu even after selecting the tool I want to launch, and only go back when I selected the option to go back to the main menu.

Main menu - then selected #3:

Then went to the Sub-menu:

Selected Sub-Tool #1:

Then pressed any key - went back to main menu - this is the part I want to stay in the sub-menu and only go back to main menu when I select "Return to main options...":

Here's the code I'm currently working on - got the menu codes somewhere in the internet years ago, btw:

 [BOOLEAN]$global:xExitSession = $false
 Function LoadMenuSystem() {
     [INT]$xMenu1 = 0
     [INT]$xMenu2 = 0
     [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUserDeclaredVarsMoreThanAssignments', '', Scope = 'Function')]
     [BOOLEAN]$xValidSelection = $false
     while ( $xMenu1 -lt 1 -or $xMenu1 -gt 3) {
         Clear-Host
         Write-Host "`n"
         Write-Host "PLEASE SELECT TOOL TO LAUNCH:`n" -ForegroundColor Yellow
         Write-Host "`[1] Tool #1"
         Write-Host "`[2] Tool #2"
         Write-Host "`[3] Tool #3 and sub-options [...]" # Sub-menu
         [int]$xMenu1 = Read-host "`n`Please enter option 1 to 3..."
         if ( $xMenu1 -lt 1 -or $xMenu1 -gt 3) {
             Write-Host "`nPlease select one of the options available.`n" -ForegroundColor Red
             Start-Sleep -Seconds 1
         }
     }
     Switch ($xMenu1) {
         1 {
             Write-Host "Tool #1 launched..." -ForegroundColor Yellow
         }
         2 { 
             Write-Host "Tool #2 launched..." -ForegroundColor Yellow
         }
         3 {
             while ( $xMenu2 -lt 1 -or $xMenu2 -gt 3 ) {
                 Clear-Host
                 Write-Host "Tool-Sub-Menu:`n" -ForegroundColor Yellow
                 Write-Host "`[1] Sub-Tool #1"
                 Write-Host "`[2] Sub-Tool #2"
                 Write-Host "`[3] Return to main options [...]"
                 [int]$xMenu2 = Read-host "`n`Please enter option 1 to 3..."
                 if ( $xMenu2 -lt 1 -or $xMenu2 -gt 3 ) {
                     Write-Host "`nPlease select one of the options available.`n" -ForegroundColor Red
                     Start-Sleep -Seconds 1
                 }
             }
             Switch ($xMenu2) {
                 1 { 
                     Write-Host "Tool #3 Sub-option #1..." -ForegroundColor Yellow
                 }
                 2 {
                     Write-Host "Tool #3 Sub-option #2..." -ForegroundColor Yellow
                 }
                 3 { LoadMenuSystem }
             }
         }
            
         default {
             [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUserDeclaredVarsMoreThanAssignments', '', Scope = 'Function')]
             $global:xExitSession = $true; break 
         }
     }
 }
 LoadMenuSystem
 while ($xExitSession -ne 1) {
     write-host "`n`n################################## COMPLETED ##################################`n" -ForegroundColor Yellow
     Read-Host "Press any key to go back to option..."
     LoadMenuSystem
 }

windows-server-powershell

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Answer 1 · 2021-10-16T14:54:54.207Z

MotoX80 answered Oct 16, '21 akosijesyang commented Oct 22, '21

Put the switch tests inside of the while loop and use it to validate the user input. Also put the submenu in it's own function.

  [BOOLEAN]$global:xExitSession = $false
  Function LoadMenuSystem() {
      [INT]$xMenu1 = 0
      [INT]$xMenu2 = 0
      [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUserDeclaredVarsMoreThanAssignments', '', Scope = 'Function')]
      [BOOLEAN]$xValidSelection = $false
      $Loop = $true
      while ( $Loop) {
          Clear-Host
          Write-Host "`n"
          Write-Host "PLEASE SELECT TOOL TO LAUNCH:`n" -ForegroundColor Yellow
          Write-Host "`[1] Tool #1"
          Write-Host "`[2] Tool #2"
          Write-Host "`[3] Tool #3 and sub-options [...]" # Sub-menu
          Write-Host "`[9] Exit"
          try {[int]$xMenu1 = Read-host "`n`Please enter option 1 to 3..."} catch {}
          $ShowMsg = $true                                # Default to show the completed message
          Switch ($xMenu1) {
              1 {
                   Write-Host "Tool #1 launched..." -ForegroundColor Yellow
                }
              2 { 
                   Write-Host "Tool #2 launched..." -ForegroundColor Yellow
                }
              3 {
                   Tool3Menu                            # Show the sub-menu 
                   $ShowMsg = $false                    # Don't display the complete message 
                }
              9 {
                   $Loop = $false
                }
               
              default {
                  Write-Host "`nPlease select one of the options available.`n" -ForegroundColor Red
                  Start-Sleep -Seconds 1
                  $ShowMsg = $false                 # Don't display completed message
              }
          }
          if ($Loop -and $ShowMsg) {
             write-host "`n`n################################## COMPLETED ##################################`n" -ForegroundColor Yellow
             Read-Host "Press any key to go back to option..."
          }
      }
  }
    
  Function Tool3Menu {
      $Loop3 = $True
      while ( $Loop3 ) {
             Clear-Host
             Write-Host "Tool-Sub-Menu:`n" -ForegroundColor Yellow
             Write-Host "`[1] Sub-Tool #1"
             Write-Host "`[2] Sub-Tool #2"
             Write-Host "`[3] Return to main options [...]"
             try {[int]$xMenu2 = Read-host "`n`Please enter option 1 to 3..."} catch {}
             $ShowMsg3 = $True                                  # Default to show the completed message
             Switch ($xMenu2) {
                 1 { 
                      Write-Host "Tool #3 Sub-option #1..." -ForegroundColor Yellow
                   }
                 2 {
                      Write-Host "Tool #3 Sub-option #2..." -ForegroundColor Yellow
                   }
                 3 { 
                      $Loop3 = $False 
                   }
                 default {
                      Write-Host "`nPlease select one of the sub-options available.`n" -ForegroundColor Red
                      Start-Sleep -Seconds 1
                      $ShowMsg3 = $False                 # Don't display completed message 
                 }
             }
             if ($Loop3 -and $ShowMsg3 ) {                       # did user ask to go back
                 write-host "`n`n################################## SUB ITEM COMPLETED ##################################`n" -ForegroundColor Yellow
                 Read-Host "Press any key to return to submenu..."
             }
       }
  }
     
  # Launch main menu
  LoadMenuSystem

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akosijesyang · Oct 22, 2021 at 02:18 PM

Hey @MotoX80 - you saved my script again. Thank you so much.

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