多线程/进度条应用（progressbar）

 使用Control Sets 下的 ProgressBar - Responsive Loop控件

ProcessBar 或者 CancelBar 都可以被设置为 invisible

代码如下（分享自PowerShell群）：

$OnLoadFormEvent = {
    #TODO: Initialize Form Controls here
    
}


$buttonCancelProcess_Click = {
    $script:CancelLoop = $true
}

$buttonStartProcess_Click = {
    #Init CancelLoop
    $script:CancelLoop = $false
    $buttonCancelProcess.Enabled = $true
    #Disable the button so we don't trigger it again
    $this.Enabled = $false
    #Reset the Progress Bar
    $progressbar1.Value = 0
    
    for ($i = 0; $i -lt $progressbar1.Maximum; $i++)
    {
        #----------------------------------------
        #Place custom script here
        $richtextbox1.AppendText($i.ToString() + "`r`n")
        sleep -Seconds 1
        #----------------------------------------
        #process the pending message
        [System.Windows.Forms.Application]::DoEvents()
        
        if ($script:CancelLoop -eq $true)
        {
            #Clear the progress bar
            $progressbar1.Value = 0
            #Exit the loop
            break;
        }
        #Step the progress bar
        $progressbar1.PerformStep()
    }
    
    #Enable the button so we can click it again
    $this.Enabled = $true
    $buttonCancelProcess.Enabled = $false
}

$richtextbox1_TextChanged={
    #TODO: Place custom script here
    $richtextbox1.ScrollToCaret()
}

$buttonRunProcess_Click={
    $buttonRunProcess.Enabled = $false
    #TODO: Set the process path there    
    Add-ProcessTracker -FilePath "$env:windir/System32/notepad.exe" `
    -CompletedScript {
        $buttonRunProcess.Enabled = $true    
        $buttonRunProcess.ImageIndex = -1
    }`
    -UpdateScript {
        #Animate the Button
        if($buttonRunProcess.ImageList -ne $null)
        {
            if($buttonRunProcess.ImageIndex -lt $buttonRunProcess.ImageList.Images.Count - 1)
            {
                $buttonRunProcess.ImageIndex += 1
            }
            else
            {
                $buttonRunProcess.ImageIndex = 0        
            }
        }
    }
}

进度条显示代码（同样是使用Control Sets 下的 ProgressBar - Responsive Loop控件），代码如下：

for ($i = 0; $i -lt 100; $i++)
{
$progressbar1.Minimum = 0
$progressbar1.Maximum = 99
$progressbar1.Value = $i
#Start-Sleep 1
}