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    <p>This is what we provide in the <a href="http://pscx.codeplex.com" rel="noreferrer">PowerShell Community Extensions</a>:</p> <pre><code>&lt;# .SYNOPSIS Similar to the C# ?? operator e.g. name = value ?? String.Empty .DESCRIPTION Similar to the C# ?? operator e.g. name = value ?? String.Empty; where value would be a Nullable&amp;lt;T&amp;gt; in C#. Even though PowerShell doesn't support nullables yet we can approximate this behavior. In the example below, $LogDir will be assigned the value of $env:LogDir if it exists and it's not null, otherwise it get's assigned the result of the second script block (C:\Windows\System32\LogFiles). This behavior is also analogous to Korn shell assignments of this form: LogDir = ${$LogDir:-$WinDir/System32/LogFiles} .PARAMETER PrimaryExpr The condition that determines whether the TrueBlock scriptblock is used or the FalseBlock is used. .PARAMETER AlternateExpr This block gets evaluated and its contents are returned from the function if the Conditon scriptblock evaluates to $true. .EXAMPLE C:\PS&gt; $LogDir = ?? {$env:LogDir} {"$env:windir\System32\LogFiles"} $LogDir is set to the value of $env:LogDir unless it doesn't exist, in which case it will then default to "$env:windir\System32\LogFiles". #&gt; filter Invoke-NullCoalescing { param([scriptblock]$PrimaryExpr = $(throw "Parameter '-primaryExpr' (position 1) required"), [scriptblock]$AlternateExpr = $(throw "Parameter '-alternateExpr' (position 2) required")) if ($primaryExpr -ne $null) { $result = &amp;$primaryExpr if ($result -ne $null -and "$result" -ne '') { $result } else { &amp;$alternateExpr } } else { &amp;$alternateExpr } } New-Alias ?? Invoke-NullCoalescing PS&gt; ?? {$xyzzy} {"empty"} empty PS&gt; ?? {$psversiontable} {"empty"} Name Value ---- ----- CLRVersion 2.0.50727.4927 BuildVersion 6.1.7600.16385 PSVersion 2.0 WSManStackVersion 2.0 PSCompatibleVersions {1.0, 2.0} SerializationVersion 1.1.0.1 PSRemotingProtocolVersion 2.1 </code></pre>
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    1. USKeith Hill
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    1. COIs there something that PSCX don't provide? ;)
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      1. USstej
    2. COOh yeah, there's room for new stuff. :-)
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    3. COI'm not accepting this answer because I was looking for something that doesn't require defining any new functions, is visually pleasing, and whose purpose is fairly obvious to someone reading the script.
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      1. USOldFart
 

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Guidance
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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