Need help in creating PowerShell form for customized reboot notification

Question

I am in mid of creating a powershell GUI for system reboot, which has dropdown(Reboot now, in 30 minutes)
Based on selection from the dropdown, it has to display the countdown timer in the GUI itself.

I have used System.Windows.Forms.Timer to show the timer, but the countdown is not updating in the GUI, please help.
initially i have set $label.Text = '00:00:00'

and below is the code used for timer:

$1second=[timespan]'0:0:0:1'
$timer1_Tick={
$script:ts1=$ts1.Subtract($1second)
Write-Host $ts1
$label.Text = $ts1.ToString('hh:mm:ss')
if($ts1.Ticks -le 0){
$timer1.Stop()

Answer 1

Hi，

Please see if this works for you

$1second=[timespan]'0:0:0:1'  
$ts1=[timespan]'0:0:30:0'  
$label.Text = $ts1.ToString('hh\:mm\:ss')  
$timer1 = New-Object system.Windows.Forms.timer  
$timer1.Interval = 1000  
$timer1.add_tick({  
    $script:ts1=$ts1.Subtract($1second)  
    $label.Text = $ts1.ToString('hh\:mm\:ss')  
    if($ts1.Ticks -le 0){  
        $timer1.Stop()  
    }  
})  
$timer1.Start()  

Best Regards，
Ian

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