Hello, 

I'm trying to rerun task-sequences on multiple computers from a Drop-Down list that contains the task-sequences names, and a computer list is loaded via a text file.

I tryed 2 diferent functions, $Install_OnClick and $Install_OnClick2,  but the action isn't being triggered, no errors or output from ISE, i'm using a Powershell GUi with a Combobox/Drop-Down List 

How can i achieve this?

Thank you 

TaskSequences
$W10_PRELOAD_1809 = "W10_PRELOAD_1809"
$W10_UPG_1809 = "W10_UPG_1809"
$W10_UPG_1809_FORCE = "W10_UPG_1809_FORCE"

$Browse_OnClick = {
    $FileName = Select-FileDialog
    $Computers = Get-Content $FileName
    $Install.enabled = $true
}

$TaskSequence = "$W10_PRELOAD_1809", "$W10_UPG_1809", "$W10_UPG_1809_FORCE", "$W7_CHECK_PRELOAD", "$W7_1809_PRELOAD", "$W7_UPG_1809", "$W7_UPG_1809_FORCE"
$TaskSequence | % { $ListApps.Items.Add($_) }

$Install_OnClick = {
    if (!$ListApps.SelectedItem) {
        [System.Windows.Forms.MessageBox]::Show("Please select a Task-Sequence from the drop down menu")
    }
    else {
        $TaskSequence = $ListApps.SelectedItem.ToString()

        foreach ($Computer in $Computers) {
            if ($TaskSequence -eq "W10_PRELOAD_1809") {
                ([wmiclass]"\\$Computer\ROOT\ccm:SMS_Client").TriggerSchedule('PIC22459--PIC00024-6F6BCC28')
            }

            if ($TaskSequence -eq "W10_UPG_1809") {
                ([wmiclass]"\\$Computer\ROOT\ccm:SMS_Client").TriggerSchedule('PIC22505-PIC00026-6F6BCC28')
            }

            if ($TaskSequence -eq "W10_UPG_1809_FORCE") {
                ([wmiclass]"\\$Computer\ROOT\ccm:SMS_Client").TriggerSchedule('PIC22458-PIC00026-6F6BCC28')
            }
        }
    } 
}

$Install_OnClick2 = {
    foreach ($Computer in $Computers) {
        foreach ($TaskSequence in $ListApps.SelectedItems) {   
            if ($TaskSequence -eq "W10_PRELOAD_1809") {
                ([wmiclass]"\\$Computer\ROOT\ccm:SMS_Client").TriggerSchedule('PIC22459--PIC00024-6F6BCC28')
            }

            if ($TaskSequence -eq "W10_UPG_1809") {
                ([wmiclass]"\\$Computer\ROOT\ccm:SMS_Client").TriggerSchedule('PIC22505-PIC00026-6F6BCC28')
            }

            if ($TaskSequence -eq "W10_UPG_1809_FORCE") {
                ([wmiclass]"\\$Computer\ROOT\ccm:SMS_Client").TriggerSchedule('PIC22458-PIC00026-6F6BCC28')
            }
        }
    } 
}