Using a lookup from one CSV file to another CSV file errors with a name clash

Question

Hi
I have a master CSV file created by querying the AD. I need to populate the "Team" attribute by doing a lookup using Name against  the Name Column any of 6 CSVs,  someone has prepared for me .  The problem is the data is inconsistent
in the 6 CSV files so Name can hold either the Name or Username i.e. SAmAccountName or LoginName
Now my ps script works when the data is good. but I have around 30 exception cases whereby there is a mismatch .  To explain:
is in this line ( see the big code block below) 
$userObject = $nameAndTeamCsvData | Where-Object {$_.Name -eq $masterUserName}
The $_.Name is using the top level masterCSVData Name but I was hoping that it was using the
$nameAndTeamCSVData.Name  as in only within the scope of the Where-Object {} ..I guess I have misunderstood the syntax of what I had written.
. A quick a dirty fix would be rename this column in all of the 4 spreadsheets or trying to fix the code.....
# now update the empty team value for user object
$csvMasterData | ForEach-Object `
$masterName = $_.Name
$masterUserName = $_.Username # to deal with exception cases
#force scope to as the properties in the outer with the same name should be out of scope
# lookup the Name to see if we can extract the user's Team
$userObject = $nameAndTeamCsvData | Where-Object {$_.Name -eq $masterName }
# deal with the situation where the name in the businesses spreadsheets is actually the Username (login name) in the master csv
if ( $userObject -eq $null )
# lookup the username (loginname) to see if we can extract the user's Team # !!!!error occurs here with the $_.Name !!!!!
$userObject = $nameAndTeamCsvData | Where-Object {$_.Name -eq $masterUserName}
if ( $userObject -eq $null )
$_.Team = "UNKNOWN"
else
# replace the mastercsv.Team with the one we have looked up
$_.Team = $userObject.Team
else
# Name matches so replace the mastercsv.Team with the one we have looked up
$_.Team = $userObject.Team
Daniel

Answer 1

I see your challenge.  How about collecting the column names in an array and looking for the potential names?  Following my example before, try this:
$dataColumns = $I | Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty Name
Now, you can loop through the names and collect the appropriate data.
if ($dataColumns.Contains('Column1'))
    #add ForEach-Object { $_.Column1... }
HTH
~fr3dd
Hi I had to wait until Friday as I have someone  ( my boss) checking the business & team csv files against valid usernames and names. 
# now update the empty team value for user object
$nameAndTeamCsvData | ForEach-Object `
$nt_name = $_.Name
# $masterUserName = $_.Username # to deal with exception cases
# lookup the Name to see if we can extract the username and mobile from the masterCSV
$userObject = $null # Replace my original code: $csvMasterData | Where-Object {$_.SName -eq $nt_name } # with foreach code below
$uo = $null
foreach ($uo in $csvMasterData)
if ($uo.SName -eq $nt_name)
$userObject = $uo
# ouch can't break out of this even though I found it so have to move on to the next
}if ( $userObject -ne $null ){ #  Name matches so   replace the few propeerties in  mastercsv.Team with the ones we have looked up
         $_.Username =$userObject.SamAccountName
         $_.Mobile =$userObject.Mobile
This does work but is clearly not very efficient since I don't think I can
break or exit out of the foreach loop.  I am thinking I could quickly modify and add your code - my import is delayed as I am having a new property added to user class...  Let me know what you think.