function Add-Node {

        param (

            $selectedNode,

            $name,

            $tag

        )

        $newNode = new-object System.Windows.Forms.TreeNode

        $newNode.Name = $name

        $newNode.Text = $name

        $newNode.Tag = $tag

        $selectedNode.Nodes.Add($newNode) | Out-Null

        return $newNode

} 

function Get-HelpTree {

    if ($script:cmdletNodes)

    {

          $treeview1.Nodes.remove($script:cmdletNodes)

        $form1.Refresh()

    }

    $script:cmdletNodes = New-Object System.Windows.Forms.TreeNode

    $script:cmdletNodes.text = "PowerShell Help"

    $script:cmdletNodes.Name = "PowerShell Help"

    $script:cmdletNodes.Tag = "root"

    $treeView1.Nodes.Add($script:cmdletNodes) | Out-Null 

    $treeView1.add_AfterSelect({

        if ($this.SelectedNode.Tag -eq "Cmdlet") {

            $helpText = Get-Help $this.SelectedNode.Name -Full

            $richTextBox1.Text = $helpText | Out-String

            $linkLabel1.Text = $helpText.relatedLinks.navigationLink[0].uri

            $form1.refresh()

        } else {

            $richTextBox1.Text = "Example to show how to use TreeView control in PowerShell script"

            $linkLabel1.Text = "http://www.ravichaganti.com/blog"

        }

    }) 

    #Generate Module nodes

    $modules = @("Microsoft.PowerShell.Core","Microsoft.PowerShell.Diagnostics","Microsoft.PowerShell.Host","Microsoft.PowerShell.Management","Microsoft.PowerShell.Security","Microsoft.PowerShell.Utility") 

    $modules | % {

        $parentNode = Add-Node $script:cmdletNodes $_ "Module"

        $moduleCmdlets = Get-Command -Module $_

        $moduleCmdlets | % {

            $childNode = Add-Node $parentNode $_.Name "Cmdlet"

        }

    }

    $script:cmdletNodes.Expand()

} 

#Generated Form Function

function GenerateForm {

########################################################################

# Code Generated By: SAPIEN Technologies PrimalForms (Community Edition) v1.0.7.0

# Generated On: 3/2/2010 5:46 PM

# Generated By: Ravikanth Chaganti (http://www.ravichaganti.com/blog)

######################################################################## 

#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

$linkLabel1 = New-Object System.Windows.Forms.LinkLabel

$label4 = New-Object System.Windows.Forms.Label

$label3 = New-Object System.Windows.Forms.Label

$label2 = New-Object System.Windows.Forms.Label

$button1 = New-Object System.Windows.Forms.Button

$richTextBox1 = New-Object System.Windows.Forms.RichTextBox

$treeView1 = New-Object System.Windows.Forms.TreeView

$InitialFormWindowState = New-Object System.Windows.Forms.FormWindowState

#endregion Generated Form Objects 

#----------------------------------------------

#Generated Event Script Blocks

#----------------------------------------------

#Provide Custom Code for events specified in PrimalForms.

$button1_OnClick=

{

$form1.Close() 

} 

$OnLoadForm_StateCorrection=

{Get-HelpTree

} 

$linkLabel1_OpenLink=

{

    [system.Diagnostics.Process]::start($linkLabel1.text)

}

#----------------------------------------------

#region Generated Form Code

$form1.Text = "Primal Form"

$form1.Name = "form1"

$form1.DataBindings.DefaultDataSourceUpdateMode = 0

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 838

$System_Drawing_Size.Height = 612

$form1.ClientSize = $System_Drawing_Size 

$linkLabel1.Font = New-Object System.Drawing.Font("Microsoft Sans Serif",9,0,3,0)

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 539

$System_Drawing_Size.Height = 23

$linkLabel1.Size = $System_Drawing_Size

$linkLabel1.TabIndex = 10

$linkLabel1.Text = "http://www.ravichaganti.com/blog"

$System_Drawing_Point = New-Object System.Drawing.Point

$System_Drawing_Point.X = 253

$System_Drawing_Point.Y = 541

$linkLabel1.Location = $System_Drawing_Point

$linkLabel1.TabStop = $True

$linkLabel1.DataBindings.DefaultDataSourceUpdateMode = 0

$linkLabel1.Name = "linkLabel1"

$linkLabel1.add_click($linkLabel1_OpenLink) 

$form1.Controls.Add($linkLabel1) 

$label4.TabIndex = 9

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 136

$System_Drawing_Size.Height = 23

$label4.Size = $System_Drawing_Size

$label4.Text = "Cmdlet Help URI"

$label4.Font = New-Object System.Drawing.Font("Microsoft Sans Serif",9,1,3,0) 

$System_Drawing_Point = New-Object System.Drawing.Point

$System_Drawing_Point.X = 253

$System_Drawing_Point.Y = 518

$label4.Location = $System_Drawing_Point

$label4.DataBindings.DefaultDataSourceUpdateMode = 0

$label4.Name = "label4" 

$form1.Controls.Add($label4) 

$label3.TabIndex = 6

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 100

$System_Drawing_Size.Height = 23

$label3.Size = $System_Drawing_Size

$label3.Text = "Description"

$label3.Font = New-Object System.Drawing.Font("Microsoft Sans Serif",9,1,3,0) 

$System_Drawing_Point = New-Object System.Drawing.Point

$System_Drawing_Point.X = 255

$System_Drawing_Point.Y = 37

$label3.Location = $System_Drawing_Point

$label3.DataBindings.DefaultDataSourceUpdateMode = 0

$label3.Name = "label3" 

$form1.Controls.Add($label3) 

$label2.TabIndex = 5

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 177

$System_Drawing_Size.Height = 23

$label2.Size = $System_Drawing_Size

$label2.Text = "PowerShell Help Tree"

$label2.Font = New-Object System.Drawing.Font("Microsoft Sans Serif",9,1,3,0) 

$System_Drawing_Point = New-Object System.Drawing.Point

$System_Drawing_Point.X = 13

$System_Drawing_Point.Y = 13

$label2.Location = $System_Drawing_Point

$label2.DataBindings.DefaultDataSourceUpdateMode = 0

$label2.Name = "label2" 

$form1.Controls.Add($label2) 

$button1.TabIndex = 4

$button1.Name = "button1"

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 75

$System_Drawing_Size.Height = 23

$button1.Size = $System_Drawing_Size

$button1.UseVisualStyleBackColor = $True 

$button1.Text = "Close" 

$System_Drawing_Point = New-Object System.Drawing.Point

$System_Drawing_Point.X = 253

$System_Drawing_Point.Y = 577

$button1.Location = $System_Drawing_Point

$button1.DataBindings.DefaultDataSourceUpdateMode = 0

$button1.add_Click($button1_OnClick) 

$form1.Controls.Add($button1) 

$richTextBox1.Name = "richTextBox1"

$richTextBox1.Text = ""

$richTextBox1.DataBindings.DefaultDataSourceUpdateMode = 0

$System_Drawing_Point = New-Object System.Drawing.Point

$System_Drawing_Point.X = 255

$System_Drawing_Point.Y = 61

$richTextBox1.Location = $System_Drawing_Point

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 562

$System_Drawing_Size.Height = 454

$richTextBox1.Size = $System_Drawing_Size

$richTextBox1.TabIndex = 1 

$form1.Controls.Add($richTextBox1) 

$System_Drawing_Size = New-Object System.Drawing.Size

$System_Drawing_Size.Width = 224

$System_Drawing_Size.Height = 563

$treeView1.Size = $System_Drawing_Size

$treeView1.Name = "treeView1"

$System_Drawing_Point = New-Object System.Drawing.Point

$System_Drawing_Point.X = 13

$System_Drawing_Point.Y = 37

$treeView1.Location = $System_Drawing_Point

$treeView1.DataBindings.DefaultDataSourceUpdateMode = 0

$treeView1.TabIndex = 0 

$form1.Controls.Add($treeView1) 

#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 

#Call the Function

GenerateForm