Manipulate CSV value without knowing column names [duplicate] - powershell

Question

I want to process a csv file in powershell, but I don't know what the column headings in the CSV file will be when it is processed.
For example:
$path = "d:\scratch\export.csv"
$csv = Import-csv -path $path
foreach($line in $csv)
{
foreach ($head in $line | get-member | where-object {$_.MemberType -eq "NoteProperty"} | select Definition)
{
#pseudocode...
doSomething($head.columnName, $head.value)
}
}
How do I loop through the line in the csv file, getting the name of the column and the value? Or is there another way I should be doing this (like not using Import-csv)?

Answer 1

Import-Csv $path | Foreach-Object {
foreach ($property in $_.PSObject.Properties)
{
doSomething $property.Name, $property.Value
}
}

Answer 2

A slightly other way of iterating through each column of each line of a CSV-file would be
$path = "d:\scratch\export.csv"
$csv = Import-Csv -path $path
foreach($line in $csv)
{
$properties = $line | Get-Member -MemberType Properties
for($i=0; $i -lt $properties.Count;$i++)
{
$column = $properties[$i]
$columnvalue = $line | Select -ExpandProperty $column.Name
# doSomething $column.Name $columnvalue
# doSomething $i $columnvalue
}
}
so you have the choice: you can use either $column.Name to get the name of the column, or $i to get the number of the column

Answer 3

$header3 = #("Field_1","Field_2","Field_3","Field_4","Field_5")
Import-Csv $fileName -Header $header3 -Delimiter "`t" | select -skip 3 | Foreach-Object {
$record = $indexName
foreach ($property in $_.PSObject.Properties){
#doSomething $property.Name, $property.Value
if($property.Name -like '*TextWrittenAsNumber*'){
$record = $record + "," + '"' + $property.Value + '"'
}
else{
$record = $record + "," + $property.Value
}
}
$array.add($record) | out-null
#write-host $record
}