function Set-CategoryVisibility { <# .SYNOPSIS Used to expand or collapse categories and corresponding apps on the install tab .PARAMETER Category Can eigther be a specific category name like "Browsers" OR "*" to affect all categories at once .PARAMETER overrideState "Expand" => expands the corresponding elements "Collapse" => collapses the corresponding elements N/A => if compactView is active expand, otherwise collapse elements #> param( [Parameter(Mandatory=$true)] [string]$Category, [ValidateSet("Expand", "Collapse")] [string]$overrideState ) switch ($overrideState){ "Expand" {$state = $true} "Collapse" {$state = $false} default {$state = $sync.CompactView} } # If all the Categories are affected, update the Checked state of the ToggleButtons. # Otherwise, the state is not synced when toggling between the display modes if ($category -eq "*") { $items = $sync.ItemsControl.Items | Where-Object {($_.Tag -like "CategoryWrapPanel_*")} $sync.ItemsControl.Items | Where-Object {($_.Tag -eq "CategoryToggleButton")} | Foreach-Object { $_.Visibility = [Windows.Visibility]::Visible; $_.IsChecked = $state } } else { $items = $sync.ItemsControl.Items | Where-Object {($_.Tag -eq "CategoryWrapPanel_$Category")} } $elementVisibility = if ($state -eq $true) {[Windows.Visibility]::Visible} else {[Windows.Visibility]::Collapsed} $items | ForEach-Object { $_.Visibility = $elementVisibility } $items.Children | ForEach-Object { $_.Visibility = $elementVisibility } }