Pause script with progress bar

[Lery154]

I've been working with the progress bar overlay control. I've been able to get it to do what I need for about 95% of my script. I'm stuck on the following requirement. My form is made up of several functions. When an action is performed a function is usually called. Some of the functions have a requirement to pause for about 20 seconds. During the pause I would like the progress bar overlay to start progressing from left to right, completing when the 20 seconds are finished.

Can anyone provide an example on how to pause a script while keeping the progress bar moving for the 20 seconds? If the bar cannot animate, because the script is paused, I understand. In that case, what are my alternatives?

[jvierra]

Place the progressbar update in a loop.

1..20 | %{
update progress bar here
sleep 1
}

[Lery154]

Place the progressbar update in a loop.

1..20 | %{
update progress bar here
sleep 1
}

That did it. I had to change the step value to 5. Otherwise it was pausing for 20 seconds, but the progress bar was full within 10 seconds. Is that the correct approach?

[jvierra]

If the total is 20 and the increment is one (step 1) If the range is 100 then step 5 for 20 seconds (20 * 5 = 100)

[Lery154]

Ok I'm making progress, but I'm not able to get the textoverlay method to stick. I can get it to work in other functions in the form, just not this one. The progress bar text changing from the default Ready status to "Pausing for 20 seconds to allow start request to complete" and then does not go back to Ready. It's making me pull more of my hair out of my head Especially when it works just fine in other functions.


Here it is:

PowerShell Code

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button_Start_click{

$progressbaroverlay1.TextOverlay = "Pausing for 20 seconds to allow start request to complete..."
			1..20 | %{
					$service = get-service -ComputerName $ComputerName -servicename 'Bits'
	 				$startservice = Start-Service -InputObject $service
					$progressbaroverlay1.Step = 5
    				$progressbaroverlay1.PerformStep()
					start-Sleep 1			
					}
$progressbaroverlay1.Value = 0
$pregressbaroverlay1.textoverlay = "Ready"

}

[davidc]

Try this after setting the text:

PowerShell Code

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$progressbaroverlay1.Refresh()

David

[davidc]

Or set the value to 0 after changing the text. We will look at making sure the control refreshes after setting the text.

David

[jvierra]

Here is the whole thing including the math:

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$button_start_Click={
	$max=100
	$seconds=20
	$tlen=(20/100) * 1000 #milliseconds
	$progressbaroverlay1.Maximum=$max
	$progressbaroverlay1.Step=1
	$progressbaroverlay1.TextOverlay = "Pausing for 20 seconds to allow start request to complete..."
	1..$max | %{
			#$service = get-service -ComputerName $ComputerName -servicename 'Bits'
			#$startservice = Start-Service -InputObject $service
			$progressbaroverlay1.PerformStep()
			start-Sleep -Milliseconds $tlen
			}
	$progressbaroverlay1.TextOverlay='Ready'
	$progressbaroverlay1.Value=0
}

[Lery154]

Prior to posting I did try $progressbaroverlay1.Refresh() and $progressbaroverlay1.Value = 0 It did not work. Which I found odd, gave up and came here for help

jvierra's sample worked perfectly. I see no difference between what you did and I did. With the exception of the math, but I was going to fix that. Also, using your math it takes the progress roughly 50 seconds to fill. Instead of 20.

[Lery154]

The other crazy thing. Using the code posted by jvierra and simply adding $progressbaroverlay1.TextOverlay = "Stoping service..." Does not work.

Take this code, which works:

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$max=100
    	$seconds=20
    	$tlen=(20/100) * 1000 #milliseconds
    	$progressbaroverlay1.Maximum=$max
    	$progressbaroverlay1.Step=1
    	$progressbaroverlay1.TextOverlay = "Pausing for 20 seconds to allow start request to complete..."
    	1..$max | %{
            $service = get-service -ComputerName $ComputerName -servicename 'Bits'
            $startservice = Start-Service -InputObject $service
            $progressbaroverlay1.PerformStep()
            start-Sleep -Milliseconds $tlen
            }
    $progressbaroverlay1.TextOverlay='Ready'
    $progressbaroverlay1.Value=0

and change it to:

PowerShell Code

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$progressbaroverlay1.TextOverlay = "Starting service..."
		$max=100
    	$seconds=20
    	$tlen=(20/100) * 1000 #milliseconds
    	$progressbaroverlay1.Maximum=$max
    	$progressbaroverlay1.Step=1
    	$progressbaroverlay1.TextOverlay = "Pausing for 20 seconds to allow start request to complete..."
    	1..$max | %{
            $service = get-service -ComputerName $ComputerName -servicename 'Bits'
            $startservice = Start-Service -InputObject $service
            $progressbaroverlay1.PerformStep()
            start-Sleep -Milliseconds $tlen
            }
    $progressbaroverlay1.TextOverlay='Ready'
    $progressbaroverlay1.Value=0

$progressbaroverlay1.TextOverlay = "Starting service..." will not display. It just goes directly to $progressbaroverlay1.TextOverlay = "Pausing for 20 seconds to allow start request to complete..."