ConvertTo-HTML does not preserve single column heading

This topic contains 3 replies, has 2 voices, and was last updated by  Tim Curwick 1 year, 8 months ago.

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  • #34079

    Tim Curwick
    Participant

    When an array of objects is piped to ConvertTo-HTML, it creates a table with the object property names as column headers. But if the objects only have a single property, the resultant table has an asterisk for the column header instead of the property name.

    # Example with two properties, expected behavior
    Get-Service Appi* | Select Name, Status | ConvertTo-HTML -Fragment
    

    Results in: (the web page trashes the resulting html here, but you get the idea)

    NameStatus
    AppIDSvcStopped
    AppinfoRunning

    #  Example with one property, undesired behavior
    Get-Service Appi* | Select Name | ConvertTo-HTML -Fragment
    

    Results in:

    *
    AppIDSvc
    Appinfo

    Is this a bug, or is this behavior desired for some reason that I am not understanding?

  • #34100

    Matt Bloomfield
    Participant

    According to a cursory search, this behaviour has been around for a while. I can't see a bug report for it on user voice though.

    The bug only rears its head if you pipe Select-Object to Convertto-HTML. You can have a single column if you use the -property parameter:

    Get-Service Appi* | ConvertTo-Html -Property Name -Fragment
    
  • #34101

    Tim Curwick
    Participant

    Matt,

    It was the lack of fixes or bug reports over the last few version of PowerShell that prompted me to ask the community if I was missing something before I posted a bug report.

    It shows the undesired behavior any time you pipe an array of objects with only one property to it without explicitly using the -Property parameter. (The Select statement was just a simple way to reproduce an object with a single property.)

    Thank you for the workaround.

  • #34109

    Tim Curwick
    Participant

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