Powershell Example Parallel Forms

[reflection.assembly]::LoadWithPartialName( "System.Windows.Forms")

$Global:tableRun = [System.Collections.Generic.List[PSCustomObject]]::new()

function Get-CheckTableRun
{
    param(
       $tableRun = $tableRun
    )
    $objectsToRemove = [System.Collections.Generic.List[PSCustomObject]]::new()
    foreach ($item in $tableRun)
    {
        if ($item.handle.IsCompleted) {
            $objectsToRemove.Add($item)
            $item.Label.Text = 'Ok'
            $result = $item.powershell.EndInvoke($item.handle)
            $Global:Result = $result
            $item.powershell.Stop()
            $item.Button.Enabled = $true
            foreach ($resultObject in $result) {
                Write-Host -f Yellow "$($resultObject.TaskGuid)`t$($resultObject.Value)"
            }
        }
        $form.Refresh()
    }

    foreach ($item in $objectsToRemove) {
        $tableRun.Remove($item)
    }
    $objectsToRemove.Clear()
}

function Get-RunClick
{
    param(
        $Label,
        $Button,
        $NameRunJob = 'Task1'
    )

    $hash = [hashtable]::Synchronized(@{})
    $hash.value = 1

    $runspace = [runspacefactory]::CreateRunspace()
    $runspace.Open()
    $runspace.SessionStateProxy.SetVariable('Hash',$hash)
    $runspace.SessionStateProxy.SetVariable('Label',$Label)
    $powershell = [powershell]::Create()
    $powershell.Runspace = $runspace

    $powershell.AddScript(
    {
        $guid = [Guid]::NewGuid()
        for ($i = 1; $i -lt 100; $i++)
        {
            $hash.value = $i
            Start-Sleep -Milliseconds 50
            $Label.Text = $i
            Write-Output( [PSCustomObject]@{TaskGuid=$guid; Value=$i})
        }
    }) | Out-Null

    $handle = $powershell.BeginInvoke()
    $Button.Enabled = $false
    $Global:tableRun.Add([pscustomobject]@{
        handle = $handle
        JobName = "Task1"
        Label = $Label
        Powershell = $powershell
        Button = $Button
        #JobScriptPath = $jibFilePath
    })

}


$form = New-Object Windows.Forms.Form

$timer = New-Object System.Windows.Forms.Timer
$timer.Interval = 10

$button1 = New-Object Windows.Forms.Button
$button1.text = "button1"
$button1.Location = New-Object System.Drawing.Size(10,5)

$button1.add_click({Get-RunClick -Label $Label1 -Button $button1})

$form.controls.add($button1)

$Label1 = New-Object Windows.Forms.Label
$Label1.text = "Status"
$Label1.Location = New-Object System.Drawing.Size(100,8)
$Form.Controls.Add($Label1)


$button2 = New-Object Windows.Forms.Button
$button2.text = "button2"
$button2.Location = New-Object System.Drawing.Size(10,30)

$button2.add_click({Get-RunClick  -Label $Label2 -Button $button2})

$form.controls.add($button2)

$Label2 = New-Object Windows.Forms.Label
$Label2.text = "Status"
$Label2.Location = New-Object System.Drawing.Size(100,38)
$Form.Controls.Add($Label2)


$timer.add_Tick({Get-CheckTableRun $tableRun})
$timer.Enabled = $true

$form.ShowDialog()