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
}