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PODismiss a Powershell form controlled by a start-job task
 

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    <p>I've been tasked with building a powershell script with a GUI which enables users to install network printers. I've succesfully managed to do so, but I cannot meet the requirement that the user be shown a 'please wait' window whilst the printers install. If I switch to the window from the main thread, the GUI hangs. If I move showing the window to a seperate job, I'm never able to close the window again. Here's my attempt:</p> <pre><code>$waitForm = New-Object 'System.Windows.Forms.Form' $CloseButton_Click={ # open "please wait form" Start-Job -Name waitJob -ScriptBlock $callWork -ArgumentList $waitForm #perform long-running (duration unknown) task of adding several network printers here $max = 5 foreach ($i in $(1..$max)){ sleep 1 # lock up the thread for a second at a time } # close the wait form - doesn't work. neither does remove-job $waitForm.Close() Remove-Job -Name waitJob -Force } $callWork ={ param $waitForm [void][reflection.assembly]::Load("System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089") $waitForm = New-Object 'System.Windows.Forms.Form' $labelInstallingPrintersPl = New-Object 'System.Windows.Forms.Label' $waitForm.Controls.Add($labelInstallingPrintersPl) $waitForm.ClientSize = '502, 103' $labelInstallingPrintersPl.Location = '25, 28' $labelInstallingPrintersPl.Text = "Installing printers - please wait..." $waitForm.ShowDialog($this) } </code></pre> <p>Does anyone know how I can dismiss the $waitForm window when the long-running task has concluded?</p>
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    1. USMorten Nørgaard
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    1. CODoes it have to be a WinForm dialog? PowerShell 2.0 has the `Write-Progress` cmdlet that can be used to display a progress bar during a long running process.
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      1. PODismiss a Powershell form controlled by a start-job task
      1. USEnrico Campidoglio
    2. COIt would have to be a WinForm dialog, I'm afraid :-(
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      1. USMorten Nørgaard
 

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