Hello monks

Pls help me on this. I have a few of jobs whereby each of them will be triggered in sequential manner when a "RunAll" button is clicked. How do I set another "KillAll" button to kill all the invoked jobs in case I want to abort all the rest of jobs halfway?

Below is how I invoked my jobs (note: I'm using Tk::ExecuteCommand in my script). Each job is triggered successfully one after another but it only kill job1 in below code for sub KillAll

Code for "RunAll" button:-

sub RunAll{
    $run_job1_bttn->invoke();
    $run_job2_bttn->invoke();
    $run_job3_bttn->invoke();
}
[download]

Code for "KillAll" button:-

sub KillAll {
    my $msg = $mw->Dialog( -title   => "Warning",
        -buttons => [ "Yes",  "Cancel" ],
                );
    $msg->add("Label", -text => "Sure to kill all jobs?",
        -wraplength => '300',
        )->pack();

    my $killbutton = $msg->Show;

    if ($killbutton eq "Yes") {
        $ec_job1->kill_command;
        $ec_job2->kill_command;
        $ec_job3->kill_command;#each $ec_job is execute_command callin
+g an external script.
    }
}
[download]

Pls suggest a method so that I can kill all running jobs successfully without abort the window. Thank you!