我有一个脚本来显示vCenter的VM磁盘状态。我希望能够突出显示＆＃34; Free Space％＆＃34;小于20.我找不到一种方法来隔离这个变量并为它添加一个单独的样式。我的代码如下：
Add-PSSnapin vmware.vimautomation.core
Connect-viserver "servername"
$editdate = Get-Date
$diskReport = "locationofreport.html"
$servers = get-vm | Sort name
#HTML Styling
$a = "<title>VM Disk Status</title>
<style>
Body{background:#003366; height:100%; width:100%; padding:0;}
Table{text-align:center; width:850px; padding-bottom:10px; border-width:1px; border-style:solid; border-color:black; margin: 0 auto; font-family: Georgia;}
TH{border-width:1px;padding:5px; border-style:solid; border-color:black; background-color:grey; color:#FFDB4D;}
TD{border-width:1px; padding:2px; border-style: solid; border-color:black; background-color:grey(this is the element I want to vary); color:white;}
P{font-size:3em; text-align:center; font-family:Georgia; color:#FFDB4D}
</style>"
$b = "<p>VM Check Disk Page<br />Last Edited on $editdate</p>"
#Start Script
If (Test-Path $diskreport)
{Remove-Item $diskreport}
$b | Add-Content $diskreport
ForEach ($vm in $servers) {
($vm.extensiondata.Guest.Disk |
Select @{N="Name";E={$vm.name}},
Diskpath,
@{N="Capacity(MB)";E={[math]::Round($_.Capacity/ 1MB)}},
@{N="Free Space(MB)";E={[math]::Round($_.FreeSpace/ 1MB)}},
@{N="Free Space %";E={[math]::Round(((100*($_.FreeSpace))/($_.Capacity)),0)}}
) | ConvertTo-Html -head $a | add-content $diskreport
}
如果有人有任何见解，那就太棒了。
答案 0 :(得分：1)
通过Matt建议手动输出表格，并使用一些CSS类（请不要使用内联样式（HTML标签中的style =“...”），在CSS样式表中添加类，因为你已经有一个），你可以做到这一点。
另外，检查我对CSS所做的更改，它会更短（并且更像这样可读）。
我有一个类似的脚本在工作中运行，在网页上显示CSV文件的内容，根据值动态添加类。
CSS：
<style>
body {
background: #003366;
height: 100%;
width: 100%;
padding: 0;
}
table{
text-align: center;
width: 850px;
padding-bottom: 10px;
border: 1px solid black;
margin: 0 auto;
font-family: Georgia;
}
th {
border: 1px solid black;
padding: 5px;
background-color: grey;
color: #FFDB4D;
}
td {
border: 1px solid black;
padding: 2px;
background-color: grey;
color: white;
}
p {
font-size: 3em;
text-align: center;
font-family: Georgia;
color: #FFDB4D
}
tr.under-20 td {
/* this targets cells in rows having class="under-20" */
background-color: red;
font-weight: bold;
}
</style>
使用for / foreach循环，您可以输出基本上为：
的表结构HTML：
<table> <!-- table start -->
<tr> <!-- row start -->
<th>First name</th> <!-- header cell -->
<th>Last name</th> <!-- header cell -->
</tr> <!-- row end -->
<tr> <!-- row start -->
<td>John</td> <!-- normal cell -->
<td>Doe</td> <!-- normal cell -->
</tr> <!-- row end -->
<tr classs="under-20"> <!-- cells in this row will have a red background based on the stylesheet above -->
<td>Jane</td>
<td>Doe</td>
</tr>
</table> <!-- table end -->
生成表格的PS代码示例（如果没有，请随时询问）：
$title = "page title goes here"
$stylesheet = "/* CSS goes here */
body {
font-family: Arial, sans-serif
}
th {
background-color: grey;
}
tr.under-20 td {
background-color: red;
color: white;
}"
$html = "<html>
<head>
<title>$title</title>
<style>`n`
$stylesheet`n`
</style>
</head>
<body>"
foreach ($vm in $servers) {
$html += "`n`t`t<table>`
`n`t`t`t<tr>`
`n`t`t`t`t<th>Name</th>`
`n`t`t`t`t<th>Path</th>`
`n`t`t`t`t<th>Capacity</th>`
`n`t`t`t`t<th>Free space (MB)</th>`
`n`t`t`t`t<th>Free space (%)</th>`
`n`t`t`t</tr>"
foreach($disk in $vm.extensiondata.Guest.Disk) {
$name = $vm.name
$diskpath = $disk.Diskpath
$capacity = [math]::Round($disk.Capacity/ 1MB)
$freeSpace = [math]::Round($disk.FreeSpace/ 1MB)
$freePercent = [math]::Round(((100 * $disk.FreeSpace) / $disk.Capacity), 0)
if($freePercent -le 20) {
$rowclass = "under-20"
} else {
$rowclass = ""
}
$html += "`n`t`t`t<tr class=`"$rowclass`">`
`n`t`t`t`t<td>$name</td>`
`n`t`t`t`t<td>$diskpath</td>`
`n`t`t`t`t<td>$capacity</td>`
`n`t`t`t`t<td>$freeSpace</td>`
`n`t`t`t`t<td>$freePercent</td>`
`n`t`t`t</tr>"
}
$html += "`n`t`t</table>"
}
$html += "`n`t</body>`n</html>"
$html | Out-File "diskreport.html"
转义选项卡和换行符提供代码缩进，字符串中的尾部反引号是预期的。
答案 1 :(得分：0)
在
找到Set-CellColor函数https://community.spiceworks.com/topic/843831-convert-html-background-cell-color-based-on-condition
但是它似乎破了。修复了每单元功能，但尚未测试-ROW开关Function Set-CellColor {
<#
.SYNOPSIS
Function that allows you to set individual cell colors in an HTML table
.DESCRIPTION
To be used inconjunction with ConvertTo-HTML this simple function allows you
to set particular colors for cells in an HTML table. You provide the criteria
the script uses to make the determination if a cell should be a particular
color (property -gt 5, property -like "*Apple*", etc).
You can add the function to your scripts, dot source it to load into your current
PowerShell session or add it to your $Profile so it is always available.
To dot source:
.".\Set-CellColor.ps1"
.PARAMETER Property
Property, or column that you will be keying on.
.PARAMETER Color
Name or 6-digit hex value of the color you want the cell to be
.PARAMETER InputObject
HTML you want the script to process. This can be entered directly into the
parameter or piped to the function.
.PARAMETER Filter
Specifies a query to determine if a cell should have its color changed. $true
results will make the color change while $false result will return nothing.
Syntax
<Property Name> <Operator> <Value>
<Property Name>::= the same as $Property. This must match exactly
<Operator>::= "-eq" | "-le" | "-ge" | "-ne" | "-lt" | "-gt"| "-approx" | "-like" | "-notlike"
<JoinOperator> ::= "-and" | "-or"
<NotOperator> ::= "-not"
The script first attempts to convert the cell to a number, and if it fails it will
cast it as a string. So 40 will be a number and you can use -lt, -gt, etc. But 40%
would be cast as a string so you could only use -eq, -ne, -like, etc.
.PARAMETER Row
Instructs the script to change the entire row to the specified color instead of the individual cell.
.INPUTS
HTML with table
.OUTPUTS
HTML
.EXAMPLE
get-process | convertto-html | set-cellcolor -Propety cpu -Color red -Filter "cpu -gt 1000" | out-file c:\test\get-process.html
Assuming Set-CellColor has been dot sourced, run Get-Process and convert to HTML.
Then change the CPU cell to red only if the CPU field is greater than 1000.
.EXAMPLE
get-process | convertto-html | set-cellcolor cpu red -filter "cpu -gt 1000 -and cpu -lt 2000" | out-file c:\test\get-process.html
Same as Example 1, but now we will only turn a cell red if CPU is greater than 100
but less than 2000.
.EXAMPLE
$HTML = $Data | sort server | ConvertTo-html -head $header | Set-CellColor cookedvalue red -Filter "cookedvalue -gt 1"
PS C:\> $HTML = $HTML | Set-CellColor Server green -Filter "server -eq 'dc2'"
PS C:\> $HTML | Set-CellColor Path Yellow -Filter "Path -like ""*memory*""" | Out-File c:\Test\colortest.html
Takes a collection of objects in $Data, sorts on the property Server and converts to HTML. From there
we set the "CookedValue" property to red if it's greater then 1. We then send the HTML through Set-CellColor
again, this time setting the Server cell to green if it's "dc2". One more time through Set-CellColor
turns the Path cell to Yellow if it contains the word "memory" in it.
.EXAMPLE
$HTML = $Data | sort server | ConvertTo-html -head $header | Set-CellColor cookedvalue red -Filter "cookedvalue -gt 1" -Row
Now, if the cookedvalue property is greater than 1 the function will highlight the entire row red.
.NOTES
Author: Martin Pugh
Twitter: @thesurlyadm1n
Spiceworks: Martin9700
Blog: www.thesurlyadmin.com
Changelog:
1.6 Fixed missing Style=`" and other mising double quotes or un-escaped, -ROW switch not tested
1.5 Added ability to set row color with -Row switch instead of the individual cell
1.03 Added error message in case the $Property field cannot be found in the table header
1.02 Added some additional text to help. Added some error trapping around $Filter creation.
1.01 Added verbose output
1.0 Initial Release
.LINK
http://community.spiceworks.com/scripts/show/2450-change-cell-color-in-html-table-with-powershell-set-cellcolor
#>
[CmdletBinding()]
Param (
[Parameter(Mandatory=$True,Position=0)]
[string]$Property,
[Parameter(Mandatory=$True,Position=1)]
[string]$Color,
[Parameter(Mandatory=$True,ValueFromPipeline)]
[Object[]]$InputObject,
[Parameter(Mandatory=$True)]
[string]$Filter,
[Parameter(Mandatory=$False)]
[switch]$Row
)
Begin {
Write-Verbose "$(Get-Date): Function Set-CellColor begins"
If ($Filter) {
If ($Filter.ToUpper().IndexOf($Property.ToUpper()) -ge 0) {
$Filter = $Filter.ToUpper().Replace($Property.ToUpper(),"`$Value")
Try {
[scriptblock]$Filter = [scriptblock]::Create($Filter)
} Catch {
[string]$ErrorMessage = "$($_.Exception.Message) $($_.ScriptStackTrace) $($_.Exception.InnerException)"
Write-Warning "$(Get-Date): ""$Filter"" caused an error
`r`n $ErrorMessage"
Return
}
} Else {
Write-Warning "Could not locate $Property in the Filter, which is required. Filter: $Filter"
Return
}
}
}
Process {
ForEach ($Line in $InputObject) {
If ($Line.IndexOf("<tr><th") -ge 0)
{ Write-Verbose "$(Get-Date): Processing headers..."
$Search = $Line | Select-String -Pattern '<th ?[a-z\-:;"=]*>(.*?)<\/th>' -AllMatches
$Index = 0
ForEach ($Match in $Search.Matches) {
If ($Match.Groups[1].Value -eq $Property) { Break }
$Index ++
}
If ($Index -eq $Search.Matches.Count) {
Write-Warning "$(Get-Date): Unable to locate property: $Property in table header"
Return
}
Write-Verbose "$(Get-Date): $Property column found at index: $Index"
}
If ($Line -match "<tr( background-color:.+?"")?><td") {
$Search = $Line | Select-String -Pattern '<td ?[a-z\-:;"=]*>(.*?)<\/td>' -AllMatches
$Value = $Search.Matches[$Index].Groups[1].Value -as [double]
If (-not $Value) {
$Value = $Search.Matches[$Index].Groups[1].Value
}
If (Invoke-Command $Filter) {
If ($Row) {
Write-Verbose "$(Get-Date): Criteria met! Changing row to $Color..."
If ($Line -match "<tr background-color:(.+?)"">") {
$Line = $Line -replace "<tr Style=`"background-color:$($Matches[1])`"","<tr Style=`"background-color:$Color`""
}
Else {
$Line = $Line.Replace("<tr>","<tr Style=`"background-color:$Color`">")
}
}
Else {
Write-Verbose "$(Get-Date): Criteria met! Changing cell to $Color..."
$Line = $Line.Replace($Search.Matches[$Index].Value,"<td Style=`"background-color:$Color`">$Value</td>")
}
}
} Else {
# Write-Host "no Match"
}
Write-Output $Line
}
}
End {
Write-Verbose "$(Get-Date): Function Set-CellColor completed"
}
}