Function Get-DriveGridView {\n [cmdletbinding(DefaultParameterSetName = \"computer\")]\n [OutputType(\"none\",\"object\")]\n Param(\n [parameter(Position = 0, ValueFromPipeline, ParameterSetName = \"computer\")]\n [ValidateNotNullOrEmpty()]\n [string]$Computername = $env:COMPUTERNAME,\n\n [parameter(ValueFromPipeline, ParameterSetName = \"session\")]\n [ValidateNotNullOrEmpty()]\n [Microsoft.Management.Infrastructure.CimSession]$CimSession,\n\n [Parameter(HelpMessage = \"Enter a title to use for the GridView\")]\n [ValidateNotNullOrEmpty()]\n [string]$Title = \"Drive Report\",\n\n [Parameter(HelpMessage = \"pass results to the pipeline in addition to the grid view\")]\n [switch]$Passthru\n )\n\n Begin {\n Write-Verbose \"[$((Get-Date).TimeofDay) BEGIN ] Starting $($myinvocation.mycommand)\"\n Write-Verbose \"[$((Get-Date).TimeofDay) BEGIN ] Collecting drive information...please wait\"\n\n #initialize a list to hold the results\n $results = [System.Collections.Generic.list[object]]::new()\n\n #hashtable of Get-CimInstance parameters for splatting\n $splat = @{\n Classname = \"win32_logicaldisk\"\n Filter = \"drivetype=3\"\n ErrorAction = \"Stop\"\n Property = \"SystemName\", \"DeviceID\", \"Size\", \"Freespace\"\n }\n } #begin\n\n Process {\n If ($pscmdlet.ParameterSetName -eq 'computer') {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] Getting data from computer $($computername.toUpper())\"\n $splat[\"Computername\"] = $Computername\n $remote = $Computername.ToUpper()\n }\n else {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] Getting data from cimsession $($cimsession.computername.toUpper())\"\n $splat[\"CimSession\"] = $cimSession\n $remote = $cimSession.computername.toUpper()\n }\n\n Try {\n Get-CimInstance @splat | Select-Object -Property @{Name = \"Computername\"; Expression = { $_.Systemname } },\n @{Name = \"Drive\"; Expression = { $_.DeviceID } },\n @{Name = \"SizeGB\"; Expression = { [int]($_.Size \/ 1GB) } },\n @{Name = \"FreeGB\"; Expression = { [int]($_.Freespace \/ 1GB) } },\n @{Name = \"UsedGB\"; Expression = { [math]::round(($_.size - $_.Freespace) \/ 1GB, 2) } },\n @{Name = \"Free%\"; Expression = { [math]::round(($_.Freespace \/ $_.Size) * 100, 2) } },\n @{Name = \"FreeGraph\"; Expression = {\n [int]$per = (($_.Freespace \/ $_.Size) * 100\/2)\n \"|\" * $per }\n } | ForEach-Object { $results.Add($_) }\n } #try\n Catch {\n Write-Warning \"Failed to get drive data from $remote. $($_.exception.message)\"\n }\n } #process\n\n End {\n #send the results to Out-Gridview\n Write-Verbose \"[$((Get-Date).TimeofDay) END ] Found $($results.count) total items\"\n if ($results.count -gt 1) {\n $Results | Sort-Object -Property Computername | Out-GridView -Title $Title\n if ($passthru) {\n $results\n }\n }\n else {\n Write-Warning \"No drive data found to report.\"\n }\n Write-Verbose \"[$((Get-Date).TimeofDay) END ] Ending $($myinvocation.mycommand)\"\n } #end\n}<\/code><\/pre>\n\n\n\nThis works fine.<\/p>\n\n\n\n![\"\"](\"https:\/\/jdhitsolutions.com\/blog\/wp-content\/uploads\/2021\/10\/drive-gridview.png\")
<\/a><\/figure>\n\n\n\nBut, PowerShell 7 has a new command called Out-ConsoleGridView. Install the Microsoft.PowerShell.ConsoleGuiTools<\/code> module from the PowerShell Gallery to get this command. I would like to include a dynamic parameter to use this command instead of Out-Gridview if it is available. This means I will have to write PowerShell code to define this parameter.<\/p>\n\n\n\n [cmdletbinding(DefaultParameterSetName = \"computer\")]\n [OutputType(\"none\",\"object\")]\n Param(\n [parameter(Position = 0, ValueFromPipeline, ParameterSetName = \"computer\")]\n [ValidateNotNullOrEmpty()]\n [string]$Computername = $env:COMPUTERNAME,\n\n [parameter(ValueFromPipeline, ParameterSetName = \"session\")]\n [ValidateNotNullOrEmpty()]\n [Microsoft.Management.Infrastructure.CimSession]$CimSession,\n\n [Parameter(HelpMessage = \"Enter a title to use for the GridView\")]\n [ValidateNotNullOrEmpty()]\n [string]$Title = \"Drive Report\",\n\n [Parameter(HelpMessage = \"pass results to the pipeline in addition to the grid view\")]\n [switch]$Passthru\n )\n DynamicParam {\n #offer to use Out-ConsoleGridView if installed in PowerShell 7\n ...<\/code><\/pre>\n\n\n\nThis is the tedious part. <\/p>\n\n\n\n
New-PSDynamicParameter<\/h2>\n\n\n\n
Instead, I'm going to use this function to auto-generate the PowerShell code.<\/p>\n\n\n\n
Function New-PSDynamicParameter {\n<#\n.Synopsis\nCreate a PowerShell dynamic parameter\n.Description\nThis command will create the code for a dynamic parameter that you can insert into your PowerShell script file.\n.Link\nabout_Functions_Advanced_Parameters\n\n#>\n\n [cmdletbinding()]\n [alias(\"ndp\")]\n [outputtype([System.String[]])]\n Param(\n [Parameter(Position = 0, Mandatory, HelpMessage = \"Enter the name of your dynamic parameter.`nThis is a required value.\")]\n [ValidateNotNullOrEmpty()]\n [alias(\"Name\")]\n [string[]]$ParameterName,\n [Parameter(Mandatory, HelpMessage = \"Enter an expression that evaluates to True or False.`nThis is code that will go inside an IF statement.`nIf using variables, wrap this in single quotes.`nYou can also enter a placeholder like '`$True' and edit it later.`nThis is a required value.\")]\n [ValidateNotNullOrEmpty()]\n [string]$Condition,\n [Parameter(HelpMessage = \"Is this dynamic parameter mandatory?\")]\n [switch]$Mandatory,\n [Parameter(HelpMessage = \"Enter an optional default value.\")]\n [object[]]$DefaultValue,\n [Parameter(HelpMessage = \"Enter an optional parameter alias.`nSpecify multiple aliases separated by commas.\")]\n [string[]]$Alias,\n [Parameter(HelpMessage = \"Enter the parameter value type such as String or Int32.`nUse a value like string[] to indicate an array.\")]\n [type]$ParameterType = \"string\",\n [Parameter(HelpMessage = \"Enter an optional help message.\")]\n [ValidateNotNullOrEmpty()]\n [string]$HelpMessage,\n [Parameter(HelpMessage = \"Does this dynamic parameter take pipeline input by property name?\")]\n [switch]$ValueFromPipelineByPropertyName,\n [Parameter(HelpMessage = \"Enter an optional parameter set name.\")]\n [ValidateNotNullOrEmpty()]\n [string]$ParameterSetName,\n [Parameter(HelpMessage = \"Enter an optional comment for your dynamic parameter.`nIt will be inserted into your code as a comment.\")]\n [ValidateNotNullOrEmpty()]\n [string]$Comment,\n [Parameter(HelpMessage = \"Validate that the parameter is not NULL or empty.\")]\n [switch]$ValidateNotNullOrEmpty,\n [Parameter(HelpMessage = \"Enter a minimum and maximum string length for this parameter value`nas an array of comma-separated set values.\")]\n [ValidateNotNullOrEmpty()]\n [int[]]$ValidateLength,\n [Parameter(HelpMessage = \"Enter a set of parameter validations values\")]\n [ValidateNotNullOrEmpty()]\n [object[]]$ValidateSet,\n [Parameter(HelpMessage = \"Enter a set of parameter range validations values as a`ncomma-separated list from minimum to maximum\")]\n [ValidateNotNullOrEmpty()]\n [int[]]$ValidateRange,\n [Parameter(HelpMessage = \"Enter a set of parameter count validations values as a`ncomma-separated list from minimum to maximum\")]\n [ValidateNotNullOrEmpty()]\n [int[]]$ValidateCount,\n [Parameter(HelpMessage = \"Enter a parameter validation regular expression pattern\")]\n [ValidateNotNullOrEmpty()]\n [string]$ValidatePattern,\n [Parameter(HelpMessage = \"Enter a parameter validation scriptblock.`nIf using the form, enter the scriptblock text.\")]\n [ValidateNotNullOrEmpty()]\n [scriptblock]$ValidateScript\n )\n\n Begin {\n Write-Verbose \"[$((Get-Date).TimeofDay) BEGIN ] Starting $($myinvocation.mycommand)\"\n $out = @\"\n DynamicParam {\n $(If ($comment) { \"$([char]35) $comment\"})\n If ($Condition) {\n\n `$paramDictionary = New-Object -Type System.Management.Automation.RuntimeDefinedParameterDictionary\n\n\"@\n\n } #begin\n\n Process {\n if (-Not $($PSBoundParameters.ContainsKey(\"ParameterSetName\"))) {\n $PSBoundParameters.Add(\"ParameterSetName\", \"__AllParameterSets\")\n }\n\n #get validation tests\n $Validations = $PSBoundParameters.GetEnumerator().Where({ $_.key -match \"^Validate\" })\n\n #this is structured for future development where you might need to create\n #multiple dynamic parameters. This feature is incomplete at this time\n Foreach ($Name in $ParameterName) {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] Defining dynamic parameter $Name [$($parametertype.name)]\"\n $out += \"`n # Defining parameter attributes`n\"\n $out += \" `$attributeCollection = New-Object -Type System.Collections.ObjectModel.Collection[System.Attribute]`n\"\n $out += \" `$attributes = New-Object System.Management.Automation.ParameterAttribute`n\"\n #add attributes\n $attributeProperties = 'ParameterSetName', 'Mandatory', 'ValueFromPipeline', 'ValueFromPipelineByPropertyName', 'ValueFromRemainingArguments', 'HelpMessage'\n foreach ($item in $attributeProperties) {\n if ($PSBoundParameters.ContainsKey($item)) {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] Defining $item\"\n if ( $PSBoundParameters[$item] -is [string]) {\n $value = \"'$($PSBoundParameters[$item])'\"\n }\n else {\n $value = \"`$$($PSBoundParameters[$item])\"\n }\n\n $out += \" `$attributes.$item = $value`n\"\n }\n }\n\n #add parameter validations\n if ($validations) {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] Processing validations\"\n foreach ($validation in $Validations) {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] ... $($validation.key)\"\n $out += \"`n # Adding $($validation.key) parameter validation`n\"\n Switch ($Validation.key) {\n \"ValidateNotNullOrEmpty\" {\n $out += \" `$v = New-Object System.Management.Automation.ValidateNotNullOrEmptyAttribute`n\"\n $out += \" `$AttributeCollection.Add(`$v)`n\"\n }\n \"ValidateLength\" {\n $out += \" `$value = @($($Validation.Value[0]),$($Validation.Value[1]))`n\"\n $out += \" `$v = New-Object System.Management.Automation.ValidateLengthAttribute(`$value)`n\"\n $out += \" `$AttributeCollection.Add(`$v)`n\"\n }\n \"ValidateSet\" {\n $join = \"'$($Validation.Value -join \"','\")'\"\n $out += \" `$value = @($join) `n\"\n $out += \" `$v = New-Object System.Management.Automation.ValidateSetAttribute(`$value)`n\"\n $out += \" `$AttributeCollection.Add(`$v)`n\"\n }\n \"ValidateRange\" {\n $out += \" `$value = @($($Validation.Value[0]),$($Validation.Value[1]))`n\"\n $out += \" `$v = New-Object System.Management.Automation.ValidateRangeAttribute(`$value)`n\"\n $out += \" `$AttributeCollection.Add(`$v)`n\"\n }\n \"ValidatePattern\" {\n $out += \" `$value = '$($Validation.value)'`n\"\n $out += \" `$v = New-Object System.Management.Automation.ValidatePatternAttribute(`$value)`n\"\n $out += \" `$AttributeCollection.Add(`$v)`n\"\n }\n \"ValidateScript\" {\n $out += \" `$value = {$($Validation.value)}`n\"\n $out += \" `$v = New-Object System.Management.Automation.ValidateScriptAttribute(`$value)`n\"\n $out += \" `$AttributeCollection.Add(`$v)`n\"\n }\n \"ValidateCount\" {\n $out += \" `$value = @($($Validation.Value[0]),$($Validation.Value[1]))`n\"\n $out += \" `$v = New-Object System.Management.Automation.ValidateCountAttribute(`$value)`n\"\n $out += \" `$AttributeCollection.Add(`$v)`n\"\n }\n } #close switch\n } #foreach validation\n } #validations\n\n $out += \" `$attributeCollection.Add(`$attributes)`n\"\n\n if ($Alias) {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] Adding parameter alias $($alias -join ',')\"\n Foreach ($item in $alias) {\n $out += \"`n # Adding a parameter alias`n\"\n $out += \" `$dynalias = New-Object System.Management.Automation.AliasAttribute -ArgumentList '$Item'`n\"\n $out += \" `$attributeCollection.Add(`$dynalias)`n\"\n }\n }\n\n $out += \"`n # Defining the runtime parameter`n\"\n\n #handle the Switch parameter since it uses a slightly different name\n if ($ParameterType.Name -match \"Switch\") {\n $paramType = \"Switch\"\n }\n else {\n $paramType = $ParameterType.Name\n }\n\n $out += \" `$dynParam1 = New-Object -Type System.Management.Automation.RuntimeDefinedParameter('$Name', [$paramType], `$attributeCollection)`n\"\n if ($DefaultValue) {\n Write-Verbose \"[$((Get-Date).TimeofDay) PROCESS] Using default value $($DefaultValue)\"\n if ( $DefaultValue[0] -is [string]) {\n $value = \"'$($DefaultValue)'\"\n }\n else {\n $value = \"`$$($DefaultValue)\"\n }\n $out += \" `$dynParam1.Value = $value`n\"\n }\n $Out += @\"\n `$paramDictionary.Add('$Name', `$dynParam1)\n\n\n\"@\n } #foreach dynamic parameter name\n\n }\n End {\n $out += @\"\n return `$paramDictionary\n } # end if\n} #end DynamicParam\n\"@\n $out\n Write-Verbose \"[$((Get-Date).TimeofDay) END ] Ending $($myinvocation.mycommand)\"\n } #end\n}<\/code><\/pre>\n\n\n\nThis function parameterizes the information you might want to use in your dynamic parameter. I'm not going to focus on how the function work but rather on using it. The parameter name and condition are required. The condition should be code that runs inside an IF statement. If you know you'll need something more complex, use a parameter value like $True. You can edit the generated code later.<\/p>\n\n\n\n
$splat = @{\n ParameterName = \"ConsoleGridView\"\n Condition = \"Get-Command -Name Out-ConsoleGridview -ErrorAction SilentlyContinue\"\n Alias = \"ocgv\"\n HelpMessage = \"Use the Out-ConsoleGridView command in PowerShell 7\"\n Comment = \"Offer to use Out-ConsoleGridView if installed in PowerShell 7\"\n ParameterType = \"switch\"\n}\nNew-PSDynamicParameter @splat | Set-Clipboard<\/code><\/pre>\n\n\n\nThe function writes a here-string of PowerShell code to the pipeline. I'm copying it to the clipboard. <\/p>\n\n\n\n
DynamicParam {\n # Offer to use Out-ConsoleGridView if installed in PowerShell 7\n If (Get-Command -Name Out-ConsoleGridview -ErrorAction SilentlyContinue) {\n\n $paramDictionary = New-Object -Type System.Management.Automation.RuntimeDefinedParameterDictionary\n\n # Defining parameter attributes\n $attributeCollection = New-Object -Type System.Collections.ObjectModel.Collection[System.Attribute]\n $attributes = New-Object System.Management.Automation.ParameterAttribute\n $attributes.ParameterSetName = '__AllParameterSets'\n $attributes.HelpMessage = 'Use the Out-ConsoleGridView command in PowerShell 7'\n $attributeCollection.Add($attributes)\n\n # Adding a parameter alias\n $dynalias = New-Object System.Management.Automation.AliasAttribute -ArgumentList 'ocgv'\n $attributeCollection.Add($dynalias)\n\n # Defining the runtime parameter\n $dynParam1 = New-Object -Type System.Management.Automation.RuntimeDefinedParameter('ConsoleGridView', [Switch], $attributeCollection)\n $paramDictionary.Add('ConsoleGridView', $dynParam1)\n\n return $paramDictionary\n } # end if\n} #end DynamicParam<\/code><\/pre>\n\n\n\nI can insert this after the Param() section. I didn't have to write any of this code. When I dot source my function in PowerShell 7, I have an additional parameter.<\/p>\n\n\n\n![\"\"](\"https:\/\/jdhitsolutions.com\/blog\/wp-content\/uploads\/2021\/10\/dynamic-paramhelp.png\")
<\/a><\/figure>\n\n\n\nBecause the dynamic parameter doesn't depend on any other parameters, and I'm letting PowerShell generate the help, this isn't too bad. But in a module with external help, this becomes a bit more difficult to document. But it works, even using the dynamic parameter alias.<\/p>\n\n\n\n
Get-DriveGridView -Computername thinkp1 -ocgv<\/code><\/pre>\n\n\n\n![\"\"](\"https:\/\/jdhitsolutions.com\/blog\/wp-content\/uploads\/2021\/10\/driveconsolegridview-1024x636.png\")
<\/a><\/figure>\n\n\n\nGetting GUI<\/h2>\n\n\n\n
But since I'm likely to use this function to generate a dynamic parameter in a scripting editor, a GUI might be nicer. This function generates a WPF front end to the first function.<\/p>\n\n\n\n
Function New-PSDynamicParameterForm {\n [cmdletbinding()]\n [alias(\"dpf\")]\n [Outputtype(\"None\")]\n Param()\n\n Add-Type -AssemblyName PresentationFramework\n Add-Type -AssemblyName PresentationCore\n\n $list = [System.Collections.Generic.list[object]]::new()\n [xml]$xaml = @\"\n <Window xmlns=\"http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\/presentation\"\n xmlns:x=\"http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\"\n xmlns:d=\"http:\/\/schemas.microsoft.com\/expression\/blend\/2008\"\n xmlns:local=\"clr-namespace:New_DynamicParamForm\"\n Title=\"New Dynamic Parameter\" Height=\"475\" Width=\"650\" WindowStartupLocation = \"CenterScreen\" >\n <Grid HorizontalAlignment=\"Center\" Width=\"650\" Margin=\"0,0,0,0\">\n <Grid.ColumnDefinitions>\n <ColumnDefinition Width=\"0*\"\/>\n <ColumnDefinition\/>\n <\/Grid.ColumnDefinitions>\n <Label x:Name=\"label\" Content=\"Parameter Name*\" HorizontalAlignment=\"Left\" Height=\"25\" Margin=\"9,22,0,0\" VerticalAlignment=\"Top\" Width=\"116\" Grid.Column=\"1\"\/>\n <TextBox x:Name=\"ParameterName\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Height=\"20\" Margin=\"120,25,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"153\"\/>\n <CheckBox x:Name=\"Mandatory\" Content=\"Mandatory\" HorizontalAlignment=\"Center\" Margin=\"0,27,0,0\" VerticalAlignment=\"Top\" Grid.Column=\"1\"\/>\n <Label x:Name=\"label_Copy\" Content=\"Parameter Set Name\" HorizontalAlignment=\"Left\" Height=\"25\" Margin=\"307,44,0,0\" VerticalAlignment=\"Top\" Width=\"121\" Grid.Column=\"1\"\/>\n <TextBox x:Name=\"ParameterSetName\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Height=\"20\" Margin=\"443,46,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"153\"\/>\n <Label x:Name=\"label1\" Content=\"Comment\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"18,392,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"Comment\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"87,396,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"345\"\/>\n <Label x:Name=\"label2\" Content=\"Parameter Alias\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"11,51,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"Alias\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Height=\"20\" Margin=\"121,54,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"153\"\/>\n <Label x:Name=\"label2_Copy\" Content=\"Default Value\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"11,78,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"DefaultValue\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Height=\"20\" Margin=\"121,81,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"153\"\/>\n <Button x:Name=\"OK\" Content=\"_Create\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"448,394,0,0\" VerticalAlignment=\"Top\" Width=\"75\"\/>\n <Button x:Name=\"Quit\" Content=\"Close\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"536,394,0,0\" VerticalAlignment=\"Top\" Width=\"75\"\/>\n <Label x:Name=\"label2_Copy1\" Content=\"Help Message\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"281,78,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"HelpMessage\" HorizontalAlignment=\"Left\" Height=\"20\" Margin=\"376,81,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"222\" Grid.Column=\"1\"\/>\n <Label x:Name=\"label2_Copy2\" Content=\"Parameter Type\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"11,105,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"ParameterType\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Height=\"20\" Margin=\"121,108,0,0\" Text=\"string\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"153\"\/>\n <Label x:Name=\"label3\" Content=\"Condition*\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"13,132,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"Condition\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"123,137,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"282\"\/>\n <Border BorderThickness=\"1\" BorderBrush=\"Black\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Height=\"1\" Margin=\"10,162,0,0\" VerticalAlignment=\"Top\" Width=\"634\"\/>\n <Label x:Name=\"label4\" Content=\"Parameter Validations\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"7,166,0,0\" VerticalAlignment=\"Top\"\/>\n <CheckBox x:Name=\"ValidateNotNullOrEmpty\" Content=\"ValidateNotNullorEmpty\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"39,196,0,0\" VerticalAlignment=\"Top\"\/>\n <Label x:Name=\"label5\" Content=\"ValidateCount\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"35,212,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"ValidateCount\" HorizontalAlignment=\"Left\" Margin=\"124,216,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"60\" Grid.Column=\"1\"\/>\n <Label x:Name=\"label5_Copy\" Content=\"ValidateLength\" HorizontalAlignment=\"Left\" Margin=\"210,212,0,0\" VerticalAlignment=\"Top\" Grid.Column=\"1\"\/>\n <TextBox x:Name=\"ValidateLength\" HorizontalAlignment=\"Left\" Margin=\"303,216,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"60\" Grid.Column=\"1\"\/>\n <CheckBox x:Name=\"ValueFromPipelineByPropertyName\" Content=\"ValueFromPipelineByPropertyName\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"201,195,0,0\" VerticalAlignment=\"Top\"\/>\n <Label x:Name=\"label6\" Content=\"ValidateRange\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"394,212,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"ValidateRange\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"481,216,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"120\"\/>\n <Label x:Name=\"label5_Copy1\" Content=\"ValidatePattern\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"35,242,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"ValidatePattern\" HorizontalAlignment=\"Left\" Margin=\"125,245,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"150\" Grid.Column=\"1\"\/>\n <Label x:Name=\"label5_Copy2\" Content=\"ValidateScript\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"35,270,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"ValidateScript\" AcceptsReturn = \"True\" VerticalScrollBarVisibility=\"Auto\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"121,274,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"250\" Height=\"70\"\/>\n <Label x:Name=\"label7\" Content=\"ValidateSet\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Margin=\"34,351,0,0\" VerticalAlignment=\"Top\"\/>\n <TextBox x:Name=\"ValidateSet\" Grid.ColumnSpan=\"2\" HorizontalAlignment=\"Left\" Height=\"16\" Margin=\"117,356,0,0\" Text=\"\" TextWrapping=\"Wrap\" VerticalAlignment=\"Top\" Width=\"328\"\/>\n <\/Grid>\n <\/Window>\n\"@\n\n $reader = New-Object System.Xml.XmlNodeReader $xaml\n $Window = [Windows.Markup.XamlReader]::Load($reader)\n\n #get all parameters\n $all = (Get-Command New-PSDynamicParameter).parameters\n #filter out common parameters\n $common = [System.Management.Automation.Cmdlet]::CommonParameters\n $paramList = $all.GetEnumerator().where({$common -notcontains $_.key}).key\n\n #get controls\n foreach ($item in $paramList) {\n Write-Verbose \"Processing control $item\"\n Try {\n $tmp = New-Variable -Name $item -Value ($Window.FindName($item)) -ErrorAction Stop -PassThru\n #add a help tool tip\n $tip = $all[$item].attributes.where({$_.typeid.name -eq 'parameterattribute'}).helpMessage\n write-Verbose \"Found help $tip\"\n $tmp.Value.ToolTip = $tip\n $list.Add((Get-Variable -Name $item))\n }\n Catch {\n Write-Verbose \"Skipping $item\"\n }\n }\n\n #hook up code to buttons\n $OK = $Window.FindName(\"OK\")\n $OK.ToolTip = \"Create the dynamic parameter code and copy to the clipboard.`nThis will NOT close the form.\"\n\n $OK.Add_Click({\n Write-Verbose \"Defining dynamic parameter $($ParameterName.text)\"\n\n $splat = @{}\n $list | where-object {$_.value.text} | foreach-object {\n $splat.Add($_.Name,$_.value.Text)\n }\n #add switches\n $list | where-object {$_.value.IsChecked} | foreach-object {\n $splat.Add($_.Name,$True)\n }\n\n #turn values into arrays as needed\n $Names = \"ValidateSet\",\"ValidateCount\",\"ValidateRange\",\"ValidateLength\"\n foreach ($n in $names) {\n if ($splat[$n]) {\n $splat[$n] = $splat[$n].split(\",\")\n }\n }\n\n #convert ValidateScript text into a scriptblock\n if ($splat[\"ValidateScript\"]) {\n $splat[\"ValidateScript\"] = [scriptblock]::Create($splat[\"ValidateScript\"])\n }\n New-PSDynamicParameter @splat | Set-Clipboard\n Write-Host \"Your dynamic parameter code has been copied to the clipboard. Paste it into your script file.\" -ForegroundColor Green\n })\n $Quit = $Window.FindName(\"Quit\")\n $Quit.Add_Click({$window.close()})\n\n [void]$window.Activate()\n [void]$window.ShowDialog()\n}<\/code><\/pre>\n\n\n\nIn the .ps1 file that defines these functions, I'm also using this code to generate shortcuts if you dot source the file in VS Code or the PowerShell ISE.<\/p>\n\n\n\n
#add scripting editor shortcuts or you can run the functions in the editor's console window.\nif ($host.name -eq 'Visual Studio Code Host') {\n Register-EditorCommand -Name \"DynamicParameterForm\" -DisplayName \"Define a dynamic parameter\" -ScriptBlock (Get-Item -path Function:\\New-PSDynamicParameterForm).scriptblock -SuppressOutput\n}\nelseif ($host.name -match \"PowerShell ISE\") {\n if ($psise.CurrentPowerShellTab.AddOnsMenu.Submenus.DisplayName -notcontains \"New Dynamic Parameter\") {\n $action = {New-PSDynamicParameterForm}\n [void]($Psise.CurrentPowerShellTab.AddOnsMenu.Submenus.Add(\"New Dynamic Parameter\", $action, \"Ctrl+Alt+D\"))\n }\n}<\/code><\/pre>\n\n\n\n