Skip to content

Instantly share code, notes, and snippets.

@lazywinadmin
Created January 10, 2015 23:55
Show Gist options
  • Save lazywinadmin/1e094b3f0f229e9b011d to your computer and use it in GitHub Desktop.
Save lazywinadmin/1e094b3f0f229e9b011d to your computer and use it in GitHub Desktop.
#Credit: SAPIEN
function ConvertTo-DataTable
{
<#
.SYNOPSIS
Converts objects into a DataTable.
.DESCRIPTION
Converts objects into a DataTable, which are used for DataBinding.
.PARAMETER InputObject
The input to convert into a DataTable.
.PARAMETER Table
The DataTable you wish to load the input into.
.PARAMETER RetainColumns
This switch tells the function to keep the DataTable's existing columns.
.PARAMETER FilterWMIProperties
This switch removes WMI properties that start with an underline.
.EXAMPLE
$DataTable = ConvertTo-DataTable -InputObject (Get-Process)
#>
[OutputType([System.Data.DataTable])]
param(
[ValidateNotNull()]
$InputObject,
[ValidateNotNull()]
[System.Data.DataTable]$Table,
[switch]$RetainColumns,
[switch]$FilterWMIProperties)
if($Table -eq $null)
{
$Table = New-Object System.Data.DataTable
}
if($InputObject-is [System.Data.DataTable])
{
$Table = $InputObject
}
else
{
if(-not $RetainColumns -or $Table.Columns.Count -eq 0)
{
#Clear out the Table Contents
$Table.Clear()
if($InputObject -eq $null){ return } #Empty Data
$object = $null
#find the first non null value
foreach($item in $InputObject)
{
if($item -ne $null)
{
$object = $item
break
}
}
if($object -eq $null) { return } #All null then empty
#Get all the properties in order to create the columns
foreach ($prop in $object.PSObject.Get_Properties())
{
if(-not $FilterWMIProperties -or -not $prop.Name.StartsWith('__'))#filter out WMI properties
{
#Get the type from the Definition string
$type = $null
if($prop.Value -ne $null)
{
try{ $type = $prop.Value.GetType() } catch {}
}
if($type -ne $null) # -and [System.Type]::GetTypeCode($type) -ne 'Object')
{
[void]$table.Columns.Add($prop.Name, $type)
}
else #Type info not found
{
[void]$table.Columns.Add($prop.Name)
}
}
}
if($object -is [System.Data.DataRow])
{
foreach($item in $InputObject)
{
$Table.Rows.Add($item)
}
return @(,$Table)
}
}
else
{
$Table.Rows.Clear()
}
foreach($item in $InputObject)
{
$row = $table.NewRow()
if($item)
{
foreach ($prop in $item.PSObject.Get_Properties())
{
if($table.Columns.Contains($prop.Name))
{
$row.Item($prop.Name) = $prop.Value
}
}
}
[void]$table.Rows.Add($row)
}
}
return @(,$Table)
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment