Caller to a payment line enters 4 digit expiry date MMYY, but I need to make sure this is a valid date in the future.
I have tried get-date but I need to make sure the 4 digit number is converted to a date format before checking against Get-Date Uformat MMyy.
Any Help would be greatfull
Thanks
Use [DateTime]::ParseExact
$monthYear = "0524"
try {
if ([DateTime]::ParseExact($monthYear,'MMyy', $null) -gt $(get-date)) {
Write-Output "valid date in the future"
} else {
Write-Output "valid date in the past"
}
}
catch {
Write-Output "invalid date"
}
Change $monthYear to validate the behaviour.
$read = read-host enter date in the future in format MMYY
try{
$month = [int]($read[0..1] -join "")
$year = [int]($read[2..3] -join "")
$date = get-date -Month $month -Year "20$year"
if(((get-date) - $date) -le 0){
write-host "You have entered a valid date in the future: $date" -ForegroundColor Green
}else{
Write-Error Not a valid Date
}
}catch{
write-host you have entered an invalid date -ForegroundColor Red
}
Here's my 2-cents using [DateTime]::TryParseExact():
$mmyy = "0524" # user input
$checkDate = (Get-Date).Date
$thisMonth = (Get-Date -Year $checkDate.Year -Month $checkDate.Month -Day 1).Date
if ([DateTime]::TryParseExact($mmyy, 'MMyy', $null, 'None', [ref]$checkDate)) {
# [math]::Sign() returns -1 for a negative value, +1 for a positive value or 0 if the value is 0
switch ([math]::Sign(($checkDate - $thisMonth).Ticks)) {
-1 { "$checkDate is in the past" }
1 { "$checkDate is in the future" }
default { "$checkDate is this month" }
}
}
else {
write-host "Invalid date" -ForegroundColor Red
}
