XML mit Powershell auslesen und TreeView füllen

 $xml = new-object XML
 $xml.Load("c:\temp\Beispiel.xml")  
 $treeView1.Nodes.Clear()
 $rootNode = $treeView1.Nodes.Add($xml.ChildNodes.Name)
 $xml.Data.Hersteller | %{$tn = $rootNode.Nodes.Add($_.ID); $_.Program | %{$tn.Nodes.Add($_.Name+" "+$_.Version)}}  

function parseXML([System.Xml.XmlNode]$node,[System.Windows.Forms.TreeNode]$treenode){
    $node.Childnodes | %{$tn = $treenode.Nodes.Add($_.Name); parseXML $_ $tn}
}

# Form Function
function GenerateForm {

#region Import the Assemblies
[reflection.assembly]::loadwithpartialname("System.Windows.Forms") | Out-Null  
[reflection.assembly]::loadwithpartialname("System.Drawing") | Out-Null  
#endregion

#region Generated Form Objects
$form1 = New-Object System.Windows.Forms.Form
$treeView1 = New-Object System.Windows.Forms.TreeView
$btnLoadXML = New-Object System.Windows.Forms.Button
$openFileDialog1 = New-Object System.Windows.Forms.OpenFileDialog
$InitialFormWindowState = New-Object System.Windows.Forms.FormWindowState
#endregion Generated Form Objects

#----------------------------------------------
# Event Script Blocks
#----------------------------------------------
$handler_btnLoadXML_Click= 
{
    if ($openFileDialog1.ShowDialog()){
        $treeView1.Nodes.Clear()
        $xml = new-object XML
        $xml.Load($openFileDialog1.FileName)
        $rootNode = $treeView1.Nodes.Add($xml.ChildNodes.Name)
        parseXML $xml.DocumentElement $rootNode
    }

}

function parseXML([System.Xml.XmlNode]$node,[System.Windows.Forms.TreeNode]$treenode){
    $node.Childnodes | %{$tn = $treenode.Nodes.Add($_.Name); parseXML $_ $tn}
}

$OnLoadForm_StateCorrection=
{#Correct the initial state of the form to prevent the .Net maximized form issue
	$form1.WindowState = $InitialFormWindowState
}

#----------------------------------------------
#region Generated Form Code
$System_Drawing_Size = New-Object System.Drawing.Size
$System_Drawing_Size.Height = 217
$System_Drawing_Size.Width = 222
$form1.ClientSize = $System_Drawing_Size
$form1.DataBindings.DefaultDataSourceUpdateMode = 0
$form1.Name = "form1"  
$form1.Text = "XML to TreeView"  

$treeView1.Anchor = 15
$treeView1.DataBindings.DefaultDataSourceUpdateMode = 0
$System_Drawing_Point = New-Object System.Drawing.Point
$System_Drawing_Point.X = 12
$System_Drawing_Point.Y = 41
$treeView1.Location = $System_Drawing_Point
$treeView1.Name = "treeView1"  
$System_Drawing_Size = New-Object System.Drawing.Size
$System_Drawing_Size.Height = 164
$System_Drawing_Size.Width = 198
$treeView1.Size = $System_Drawing_Size
$treeView1.TabIndex = 1

$form1.Controls.Add($treeView1)

$btnLoadXML.Anchor = 13

$btnLoadXML.DataBindings.DefaultDataSourceUpdateMode = 0

$System_Drawing_Point = New-Object System.Drawing.Point
$System_Drawing_Point.X = 12
$System_Drawing_Point.Y = 12
$btnLoadXML.Location = $System_Drawing_Point
$btnLoadXML.Name = "btnLoadXML"  
$System_Drawing_Size = New-Object System.Drawing.Size
$System_Drawing_Size.Height = 23
$System_Drawing_Size.Width = 198
$btnLoadXML.Size = $System_Drawing_Size
$btnLoadXML.TabIndex = 0
$btnLoadXML.Text = "XML-Datei laden"  
$btnLoadXML.UseVisualStyleBackColor = $True
$btnLoadXML.add_Click($handler_btnLoadXML_Click)

$form1.Controls.Add($btnLoadXML)

$openFileDialog1.FileName = "fd"  
$openFileDialog1.Filter = "XML-Dateien|*.xml"  
$openFileDialog1.ShowHelp = $True

#endregion Generated Form Code

#Save the initial state of the form
$InitialFormWindowState = $form1.WindowState
#Init the OnLoad event to correct the initial state of the form
$form1.add_Load($OnLoadForm_StateCorrection)
#Show the Form
$form1.ShowDialog()| Out-Null

} #End Function

GenerateForm