Skip to content
This repository was archived by the owner on Jan 7, 2026. It is now read-only.

Fixed $Null values to DBNull on output #1

Open
everydaynerd wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Fixed $Null values to DBNull on output #1

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
153 changes: 79 additions & 74 deletions CATSQLServerDataGathering/Out-DataTable.psm1
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -30,77 +30,82 @@ $types = @(
} #Get-Type

#######################
<#
.SYNOPSIS
Creates a DataTable for an object
.DESCRIPTION
Creates a DataTable based on an objects properties.
.INPUTS
Object
Any object can be piped to Out-DataTable
.OUTPUTS
System.Data.DataTable
.EXAMPLE
$dt = Get-psdrive| Out-DataTable
This example creates a DataTable from the properties of Get-psdrive and assigns output to $dt variable
.NOTES
Adapted from script by Marc van Orsouw see link
Version History
v1.0 - Chad Miller - Initial Release
v1.1 - Chad Miller - Fixed Issue with Properties
v1.2 - Chad Miller - Added setting column datatype by property as suggested by emp0
v1.3 - Chad Miller - Corrected issue with setting datatype on empty properties
v1.4 - Chad Miller - Corrected issue with DBNull
v1.5 - Chad Miller - Updated example
v1.6 - Chad Miller - Added column datatype logic with default to string
v1.7 - Chad Miller - Fixed issue with IsArray
.LINK
http://thepowershellguy.com/blogs/posh/archive/2007/01/21/powershell-gui-scripblock-monitor-script.aspx
#>
function Out-DataTable
{
[CmdletBinding()]
param([Parameter(Position=0, Mandatory=$true, ValueFromPipeline = $true)] [PSObject[]]$InputObject)

Begin
{
$dt = new-object Data.datatable
$First = $true
}
Process
{
foreach ($object in $InputObject)
{
$DR = $DT.NewRow()
foreach($property in $object.PsObject.get_properties())
{
if ($first)
{
$Col = new-object Data.DataColumn
$Col.ColumnName = $property.Name.ToString()
if ($property.value)
{
if ($property.value -isnot [System.DBNull]) {
$Col.DataType = [System.Type]::GetType("$(Get-Type $property.TypeNameOfValue)")
}
}
$DT.Columns.Add($Col)
}
if ($property.Gettype().IsArray) {
$DR.Item($property.Name) =$property.value | ConvertTo-XML -AS String -NoTypeInformation -Depth 1
}
else {
$DR.Item($property.Name) = $property.value
}
}
$DT.Rows.Add($DR)
$First = $false
}
}

End
{
Write-Output @(,($dt))
}

} #Out-DataTable
<#
.SYNOPSIS
Creates a DataTable for an object
.DESCRIPTION
Creates a DataTable based on an objects properties.
.INPUTS
Object
Any object can be piped to Out-DataTable
.OUTPUTS
System.Data.DataTable
.EXAMPLE
$DT = Get-psdrive| Out-DataTable
This example creates a DataTable from the properties of Get-psdrive and assigns output to $dt variable
.NOTES
Adapted from script by Marc van Orsouw see link
Version History
v1.0 - Chad Miller - Initial Release
v1.1 - Chad Miller - Fixed Issue with Properties
v1.2 - Chad Miller - Added setting column datatype by property as suggested by emp0
v1.3 - Chad Miller - Corrected issue with setting datatype on empty properties
v1.4 - Chad Miller - Corrected issue with DBNull
v1.5 - Chad Miller - Updated example
v1.6 - Chad Miller - Added column datatype logic with default to string
v1.7 - Chad Miller - Fixed issue with IsArray
v1.8 - Dan Burgess - Fixed issue with $NULL values, requiring DBNull instead
.LINK
GitHub: https://github.com/SQLServerIO/SQLDIY/blob/master/CATSQLServerDataGathering/Out-DataTable.psm1
No longer working: http://thepowershellguy.com/blogs/posh/archive/2007/01/21/powershell-gui-scripblock-monitor-script.aspx
#>
Function Out-DataTable
{
[CmdletBinding()]
param([Parameter(Position=0, Mandatory=$true, ValueFromPipeline = $true)] [PSObject[]]$InputObject)

Begin
{
$DT = New-Object Data.datatable
$First = $true
}
Process
{
Foreach ($object in $InputObject)
{
$DR = $DT.NewRow()
Foreach($property in $object.PsObject.get_properties())
{
If ($first)
{
$Col = new-object Data.DataColumn
$Col.ColumnName = $property.Name.ToString()
If ($property.value)
{
If ($property.value -isnot [System.DBNull])
{
$Col.DataType = [System.Type]::GetType("$(Get-Type $property.TypeNameOfValue)")
}
}
$DT.Columns.Add($Col)
}
If ($property.Gettype().IsArray)
{
$DR.Item($property.Name) = $property.value | ConvertTo-XML -AS String -NoTypeInformation -Depth 1
}
Else
{
$DR.Item($property.Name) = If ($property.value){$property.value} else { [DBNull]::Value }
}
}
$DT.Rows.Add($DR)
$First = $false
}
}

End
{
Write-Output @(,($DT))
}

} #Out-DataTable