Powershell and XAML - Capture Checkbox event from listview

I'm working on a GUI interface for my collegue and I want to add a ListView with checkboxes and "make stuff" when the users are checking the checkbox.

I've done a lot of search on StackOverflow and Technet and so far, I only got some checkbox that I can set (with binding) like I want, but I'm unable to create or capture any event on the check event.

I've made a little GUI interface to do my trial and error. So my XAML code looks like this :

<Window
    xmlns="http://ift.tt/o66D3f"
    xmlns:x="http://ift.tt/mPTqtT"
    xmlns:d="http://ift.tt/pHvyf2"
    xmlns:mc="http://ift.tt/pzd6Lm"
    xmlns:local="clr-namespace:GUI_Techgenix"
    mc:Ignorable="d"
    Title="Powershell GUI Training" Height="250" Width="400">
    <Grid>
        <ListView x:Name="listSort" HorizontalAlignment="Left" Height="132" Margin="15,15,0,0" VerticalAlignment="Top" Width="350">
            <ListView.View>
                <GridView AllowsColumnReorder="true" ColumnHeaderToolTip="InfoPaquet">
                    <GridViewColumn Header="Play">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <CheckBox IsChecked="{Binding Play}"/>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                    <GridViewColumn DisplayMemberBinding="{Binding Path=PkgName}">
                        <GridViewColumnHeader>Package Name</GridViewColumnHeader>
                    </GridViewColumn>
                    <GridViewColumn DisplayMemberBinding="{Binding Path=ProgramName}">
                        <GridViewColumnHeader>Program Name</GridViewColumnHeader>
                    </GridViewColumn>
                    <GridViewColumn DisplayMemberBinding="{Binding Path=SequenceID}">
                        <GridViewColumnHeader>SequenceID</GridViewColumnHeader>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>
</Window>

And my Powershell code looks like this :

Set-Location $PSScriptRoot
#Loading modules
#Module to import XAML inspire by these nice walkthrough :
    - http://ift.tt/2y3PRr2
    - http://ift.tt/2ryVMWq
Import-Module .\XAML-Loader -ErrorAction Stop

$mainWindow = Open-XamlForm(".\FormTest.xaml")

$testobj = New-Object -TypeName PSObject
$testobj | Add-Member -MemberType NoteProperty -Name ("PkgName") -Value "Test"
$testobj | Add-Member -MemberType NoteProperty -Name ("ProgramName") -Value "Install"
$testobj | Add-Member -MemberType NoteProperty -Name ("Play") -Value "True"
$mainWindow.listSort.AddChild($testobj)

$testobj2 = New-Object -TypeName PSObject
$testobj2 | Add-Member -MemberType NoteProperty -Name ("PkgName") -Value "Test2"
$testobj2 | Add-Member -MemberType NoteProperty -Name ("ProgramName") -Value "Install Notes"
$testobj2 | Add-Member -MemberType NoteProperty -Name ("Play") -Value "False"
$mainWindow.listSort.AddChild($testobj2)

$mainWindow.listSort.add_MouseLeftButtonUp({
    Write-host "ClickThatUp!"
})

$mainWindow.XamGUI.ShowDialog() | Out-Null

The add_MouseLeftButtonUp works great everywhere in the listview, except the checkbox.

I've found a lot of help and solution for C#, but nothing seems to work in Powershell. So any suggestion or help would and will be appreciated.

Thanks!