WPF/Add-ChildControl.ps1
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function Add-ChildControl { <# .Synopsis Adds a Child Control to a panel .Description Adds a Child Control to a panel .Example New-StackPanel -On_Loaded { New-Label "Hello" | Add-ChildControl -parent $this } .Parameter control The UI Element to add to the parent .Parameter scriptBlock A Script Block used to create a UI Element to add .Parameter parameters The parameters to the script block .Parameter parent The panel the child controls will be added into .Parameter passthru If set, the UI element will be returned through the pipeline. #> [CmdletBinding(DefaultParameterSetName='Control')] param( [Parameter(Mandatory=$true,ParameterSetName='Control',ValueFromPipeline=$true)] [Windows.UIElement]$control, [Parameter(Mandatory=$true, ParameterSetName='ScriptBlock', ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [Alias('Definition')] [ScriptBlock]$scriptBlock, [Parameter(ParameterSetName='ScriptBlock', ValueFromPipelineByPropertyName=$true)] [Hashtable]$parameters, [Parameter(Position=0, Mandatory=$true)] [Windows.Media.Visual]$parent, [Switch]$Clear, [switch]$passThru ) process { $itemsToAdd = @() if ($psBoundParameters.ScriptBlock) { $scriptBlock = $psBoundParameters.ScriptBlock if ($parameters) { $itemsToAdd = & $scriptBlock @parameters } else { $itemsToAdd = & $scriptBlock } } else { $itemsToAdd+= $control } if ($psBoundParameters.ScriptBlock.Clear) { if ($parent.GetType().GetProperty('Children')) { $parent.Children.Clear() } elseif ($parent.GetType().GetProperty('Items')) { $parent.Items.Clear() } } foreach ($i in $itemsToAdd) { if (-not $i) { continue } if ($parent.GetType().GetProperty('Children')) { $null = $parent.Children.Add($i) } elseif ($parent.GetType().GetProperty('Items')) { $null = $parent.Items.Add($i) } if ($passThru) { $i } } } } |