winutil/functions/private/Initialize-InstallAppArea.ps1

36 lines
1.8 KiB
PowerShell
Raw Normal View History

function Initialize-InstallAppArea {
<#
.SYNOPSIS
Creates a [Windows.Controls.ScrollViewer] containing a [Windows.Controls.ItemsControl] which is setup to use Virtualization to only load the visible elements for performance reasons.
This is used as the parent object for all category and app entries on the install tab
Used to as part of the Install Tab UI generation
.PARAMETER TargetElement
The element to which the AppArea shoud be added
#>
param($TargetElement)
$scrollViewer = New-Object Windows.Controls.ScrollViewer
$scrollViewer.VerticalScrollBarVisibility = 'Auto'
$scrollViewer.HorizontalAlignment = 'Stretch'
$scrollViewer.VerticalAlignment = 'Stretch'
$scrollViewer.CanContentScroll = $true
$itemsControl = New-Object Windows.Controls.ItemsControl
$itemsControl.HorizontalAlignment = 'Stretch'
$itemsControl.VerticalAlignment = 'Stretch'
$itemsPanelTemplate = New-Object Windows.Controls.ItemsPanelTemplate
$factory = New-Object Windows.FrameworkElementFactory ([Windows.Controls.VirtualizingStackPanel])
$itemsPanelTemplate.VisualTree = $factory
$itemsControl.ItemsPanel = $itemsPanelTemplate
$itemsControl.SetValue([Windows.Controls.VirtualizingStackPanel]::IsVirtualizingProperty, $true)
$itemsControl.SetValue([Windows.Controls.VirtualizingStackPanel]::VirtualizationModeProperty, [Windows.Controls.VirtualizationMode]::Recycling)
$scrollViewer.Content = $itemsControl
[Windows.Controls.DockPanel]::SetDock($scrollViewer, [Windows.Controls.Dock]::Bottom)
$null = $TargetElement.Children.Add($scrollViewer)
return $itemsControl
}