I cannot update ini file. Treating ini file as hastable in Powershell - powershell

Question

I need to update ini configuration file. I managed to convert the file to hastable and updating values. But when I check if the changes are correct in the file, it hasn't changed. Add-Content doesn't work. do I need to convert to String to use Add-Content function?
Configuration file is filled with plain text also.
"ini" Configuration file:
[sqlScript1Deployment]
sqlServerName = '??????????'
olapServerName = '??????????'
(...)
My ps1 code:
[hashtable]$ht = Get-Configuration($iniFilepath)
$ht["sqlScript1Deployment"]["sqlServerName"] = 'Master'
$ht | Add-Content $iniFilepath
Expected code in "ini" file:
[sqlScript1Deployment]
sqlServerName = 'Master'
Actual result in "ini" file:
[sqlScript1Deployment]
sqlServerName = '??????????'

Answer 1

I have no idea where you got the Get-Configuration function from, but if it creates a hashtable where each Key is a Section for the INI and every Value is a name/value pair like this:
$ht = #{
'sqlScript1Deployment' = #{
'sqlServerName' = '??????????'
'olapServerName' = '??????????'
}
}
The following code may help:
# set the new value for sqlServerName
$ht['sqlScript1Deployment']['sqlServerName'] = 'Master'
# write the Hashtable back to disk as .INI file
$sb = New-Object -TypeName System.Text.StringBuilder
# the Keys are the Sections in the Ini file
# the properties are name/value pairs within these keys
foreach ($section in $ht.Keys) {
[void]$sb.AppendLine("[$section]")
foreach ($name in $ht[$section].Keys) {
$value = $ht[$section][$name]
# the value needs to be quoted when:
# - it begins or ends with whitespace characters
# - it contains single or double quote characters
# - it contains possible comment characters ('#' or ';')
if ($value -match '^\s+|[#;"'']|\s+$') {
# escape quotes inside the value and surround the value with double quote marks
$value = '"' + ($value -replace '(["''])', '\$1') + '"'
}
[void]$sb.AppendLine("$name = $value")
}
}
$sb.ToString() | Out-File $iniFilepath
[void]$sb.Clear()
The resulting file will look like this:
[sqlScript1Deployment]
sqlServerName = Master
olapServerName = ??????????