How to fill color in a cell having particular string when using convertto-html

Question

Hello Scripters,
I have downloaded AD health check script but I am wondering if the cell color be changed for a particular string. Like all the cells having text "Failed"..should be in red color.
Here is the script-
Function Getservicestatus($service, $server)
$st = Get-service -computername $server | where-object { $_.name -eq $service }
if($st)
{$servicestatus= $st.status}
else
{$servicestatus = "Not found"}
Return $servicestatus
$Forest = [system.directoryservices.activedirectory.Forest]::GetCurrentForest()
[string[]]$computername = $Forest.domains | ForEach-Object {$_.DomainControllers} | ForEach-Object {$_.Name}
#Section -1
$report= @()
foreach ($server in $computername){
$temp = "" | select server, pingstatus
if ( Test-Connection -ComputerName $server -Count 1 -ErrorAction SilentlyContinue ) {
$temp.pingstatus = "Pinging"
else {
$temp.pingstatus = "Not pinging"
$temp.server = $server
$report+=$temp
$b = $report | select server, pingstatus | ConvertTo-HTML -Fragment -As Table -PreContent "<h2>Server Availability</h2>" | Out-String
#Section - 2
$report = @()
foreach ($server in $computername){
$temp = "" | select server, KDC, NtFrs, DFSR, netlogon, w32Time
$temp.server = $server
$temp.KDC = Getservicestatus -service "KDC" -server $server
$temp.NtFrs = Getservicestatus -service "NtFrs" -server $server
$temp.DFSR = Getservicestatus -service "DFSR" -server $server
$temp.netlogon = Getservicestatus -service "netlogon" -server $server
$temp.w32Time = Getservicestatus -service "w32Time" -server $server
$report+=$temp
$b+= $REPORT | select server, KDC, NtFrs, DFSR, netlogon, w32Time | ConvertTo-HTML -Fragment -As Table -PreContent "<h2>Service Status</h2>" | Out-String
#Section - 3
add-type -AssemblyName microsoft.visualbasic
$strings = "microsoft.visualbasic.strings" -as [type]
$report = @()
foreach ($server in $computername){
$temp = "" | select server, Netlogon, Advertising, Connectivity, Replication
$temp.server = $server
$svt = dcdiag /test:netlogons /s:$server
$svt1 = dcdiag /test:Advertising /s:$server
$svt2 = dcdiag /test:connectivity /s:$server
$svt3 = dcdiag /test:Replications /s:$server
if($strings::instr($svt, "passed test NetLogons")){$temp.Netlogon = "Passed"}
else
{$temp.Netlogon = "Failed"}
if($strings::instr($svt1, "passed test Advertising")){$temp.Advertising = "Passed"}
else
{$temp.Advertising = "Failed"}
if($strings::instr($svt2, "passed test Connectivity")){$temp.Connectivity = "Passed"}
else
{$temp.Connectivity = "Failed"}
if($strings::instr($svt3, "passed test Replications")){$temp.Replication = "Passed"}
else
{$temp.Replication = "Failed"}
$report+=$temp
$b+= $REPORT | select server, Netlogon, Advertising, Connectivity, Replication | ConvertTo-HTML -Fragment -As Table -PreContent "<h2>DCDIAG Test</h2>" | Out-String
#Section - 4
$workfile = repadmin.exe /showrepl * /csv
$results = ConvertFrom-Csv -InputObject $workfile | where {$_.'Number of Failures' -ge 1}
#$results = $results | where {$_.'Number of Failures' -gt 1 }
if ($results -ne $null ) {
$results = $results | select "Source DSA", "Naming Context", "Destination DSA" ,"Number of Failures", "Last Failure Time", "Last Success Time", "Last Failure Status"
$b+= $results | select "Source DSA", "Naming Context", "Destination DSA" ,"Number of Failures", "Last Failure Time", "Last Success Time", "Last Failure Status" | ConvertTo-HTML -Fragment -As Table -PreContent "<h2>Replication Status</h2>" | Out-String
} else {
$results = "There were no Replication Errors"
$b+= $results | ConvertTo-HTML -Fragment -PreContent "<h2>Replication Status</h2>" | Out-String
$head = @'
<style>
body { background-color:#dddddd;
font-family:Tahoma;
font-size:12pt; }
td, th { border:1px Solid Black;
border-collapse:collapse; }
th { color:white;
background-color:DarkGoldenRod; }
table, tr, td, th { padding: 2px; margin: 0px }
table { margin-left:50px; }
</style>
$s = ConvertTo-HTML -head $head -PostContent $b -Body "<h1>Active Directory Checklist</h1>" | Out-string
$emailFrom = ""
$emailTo = ""
$smtpserver= ""
$smtp=new-object Net.Mail.SmtpClient($smtpServer)
$msg = new-object Net.Mail.MailMessage
$msg.From = $emailFrom
$msg.To.Add($emailTo)
$msg.IsBodyHTML = $true
$msg.subject="Active Directory Health Check Report From Dlhdc02"
$msg.Body = $s
$smtp.Send($msg)
Like in the Ping Status (section - 1), I'd like all the cell having text "Not Pinging" should be in RED color.
Also I am facing an issue in the (Section - 4). When the value of $Results is not null I am getting the desired output but when the value is null the text ""There were no Replication Errors""  is not getting displayed in
the HTML body. Instead it comes as "*32" (32 is the number of letters in the text).
Please help me in fixing this ....
BR
Himanshu
MCTS|MCSE|MCSA:Messaging|CCNA

Answer 1

Here are instructions on  ways to color cells based on content.
http://tech-comments.blogspot.com/2012/07/powershell-dynamically-color-posh.html
\_(ツ)_/