Displays progress for nested loop operations in PowerShell using Write-Progress Cmdlet

Show-NestedLoopProgress.ps1

$outerLoopMax = 255
$innerLoopMax = 126
 
for ($outerCounter=1; $outerCounter -lt $outerLoopMax; $outerCounter++) {
  Write-Progress -Activity "Main loop progress:" `
                   -PercentComplete ([int](100 * $outerCounter / $outerLoopMax)) `
                   -CurrentOperation ("Completed {0}%" -f ([int](100 * $outerCounter / $outerLoopMax))) `
                   -Status ("Outer loop working on item [{0}]" -f $outerCounter) `
                   -Id 1
 
    Start-Sleep -Milliseconds 100
 
    for ($innerCounter=1; $innerCounter -lt $innerLoopMax; $innerCounter++) {
      Write-Progress -Activity "Inner loop progress:" `
                       -PercentComplete ([int](100 * $innerCounter / $innerLoopMax)) `
                       -CurrentOperation ("Completed {0}%" -f ([int](100 * $innerCounter / $innerLoopMax))) `
                       -Status ("Inner loop working on item [{0}]" -f $innerCounter) `
                       -Id 2 `
                       -ParentId 1
 
        Start-Sleep -Milliseconds 10
    }
}