Check CSV for object not matching? - powershell

Question

Probably a really elementary question but preliminary searches didn't return much. I'm writing a script that takes $CSC (which is user input) compares it to a .csv object called "CSC" and then populates the relevant information based off that.
$CSC = "1100 4WWW" #Hardcoded value to test against #CSC are always <#### #ChChCh>
$roster = Import-Csv <my path>
Foreach ($row in $roster) {
If ($CSC -eq $row.CSC) {
$Department = $row.Department
$Division = $row.Division
$Street = $row.Street
$City = $row.City
$State = $row.State
$Zipcode = $row.Zipcode
$OfficePhone = $row.Phone
$Country = $row.Country
} Else { }
}
That's working fine but how would I check if a user input $CSC didn't match an in the list?
Making the else or making an elseif ($CSC -ne $row.CSC) obviously returns a value for every line except the matching one. I'm guessing I should use a nested if statement but being self taught I wasn't sure what the best way to do this is. Thanks.

Answer 1

I can think of a couple things you can do.
Option 1: Using the -match operator. [not recommended as it has some regex constraints but I will present it as an option anyway]
$CSC = "1100 4WWW" #Hardcoded value to test against #CSC are always <#### #ChChCh>
$roster = Import-Csv <my path>
if ($roster -match $CSC)
{
Foreach ($row in $roster) {
If ($CSC -eq $row.CSC) {
$Department = $row.Department
$Division = $row.Division
$Street = $row.Street
$City = $row.City
$State = $row.State
$Zipcode = $row.Zipcode
$OfficePhone = $row.Phone
$Country = $row.Country
} Else { }
}
}
else
{
#your 'not a match' code goes here
}
Option 2: Set a flag
$CSC = "1100 4WWW" #Hardcoded value to test against #CSC are always <#### #ChChCh>
$roster = Import-Csv <my path>
$flag = $false
Foreach ($row in $roster)
{
If ($CSC -eq $row.CSC)
{
$Department = $row.Department
$Division = $row.Division
$Street = $row.Street
$City = $row.City
$State = $row.State
$Zipcode = $row.Zipcode
$OfficePhone = $row.Phone
$Country = $row.Country
$flag = $true
}
Else { }
}
If (!$flag)
{
#your 'not a match' code goes here
}