Powershell - Convert list to UI with Out-Gridview - excel

Question

I have a script that read from excel and let the user to choose a column. The issue is that the list is not readable and I want to show the user the option to choose the version with UI with Out-Gridview
One more thing, I need that the answer will be a number
Here is the script:
$ExcelObject = New-Object -ComObject Excel.Application
$ExcelWorkBook = $ExcelObject.Workbooks.Open($SharePointSiteURL)
$ExcelWorkSheet = $ExcelWorkBook.Sheets.Item("VIP List")
$rowMax = $ExcelWorkSheet.UsedRange.Rows.Count
$colMax = $ExcelWorkSheet.UsedRange.Columns.Count
$columns = [ordered]#{}
for ($col = 1; $col -le $colMax; $col++) {
$name = $ExcelWorkSheet.Cells.Item(1, $col).Value() # assuming the first row has the headers
if ($name -ne $null){
$columns[$name] = $col}
}
$columns.GetEnumerator() | ForEach-Object {
# {0,2} means to write the index number from $_.Value right aligned for two digits
'{0,2}: {1}' -f $_.Value, $_.Name
}
do {
$answer = Read-Host "Please enter the number of the column you want to read from" #. Press Q to exit
# ask this question until the user enters a number or 'Q'
} until ($answer -eq 'Q' -or $answer -match '^\d{1,2}$')
switch ($answer) {
'Q' { break } # user wants to quit
{1..$columns.Count} {
# get the Name from the chosen value
$action = $columns.Keys | Where-Object {$columns["$_"] -eq $answer}
Write-Host "You chose to perform: '$action'" -ForegroundColor Cyan
<# run $action #>
}
}
It looks like this:

Answer 1

To let the user select the tool version using Out-GridView, you need to build an array of objects, like below:
$ExcelObject = New-Object -ComObject Excel.Application
$ExcelWorkBook = $ExcelObject.Workbooks.Open($SharePointSiteURL)
$ExcelWorkSheet = $ExcelWorkBook.Sheets.Item("VIP List")
$rowMax = $ExcelWorkSheet.UsedRange.Rows.Count
$colMax = $ExcelWorkSheet.UsedRange.Columns.Count
# now, have the loop output objects that will be collected in variable $columns
$columns = for ($col = 1; $col -le $colMax; $col++) {
$name = $ExcelWorkSheet.Cells.Item(1, $col).Value() # assuming the first row has the headers
# if $name is not empty or whitespace only
if ($name -match '\S') {
[PsCustomObject]#{
Number = $col
Version = $name
}
}
}
# output to Out-GridView with -PassThru parameter so you can capture the selected item
$answer = ($columns | Out-GridView -Title 'Please select' -PassThru).Number
# if the user did not cancel
if ($answer) {
# get the Name from the chosen value
$action = $columns[$answer -1].Version
Write-Host "You chose to perform: '$action'" -ForegroundColor Cyan
<# run $action #>
}
Please do not forget to remove the used COM objects from memory when the code is done, otherwise they will linger on..
$null = [System.Runtime.Interopservices.Marshal]::ReleaseComObject($ExcelWorkSheet)
$null = [System.Runtime.Interopservices.Marshal]::ReleaseComObject($ExcelWorkBook)
$null = [System.Runtime.Interopservices.Marshal]::ReleaseComObject($ExcelObject)
[System.GC]::Collect()
[System.GC]::WaitForPendingFinalizers()