Powershell计时器-更新GUI

我创建了一个Powershell计时器，每隔1秒钟，我想运行一个函数来执行或将文本发布到界面上的文本框日志中。

运行以下内容。单击“开始”时，每隔1秒钟，日志文本区域应显示“每1秒钟发布一次，而不是成批记录”。但是，当您单击“停止”时，此消息只会一次全部显示为批处理。

互联网上似乎没有回答这个问题!

代码:

$global:timer = New-Object System.Timers.Timer
$global:timer.Interval = 1000


function AddToLog($logtext)
{
    $txtLog.Text = $txtLog.Text + "`r`n" + $logtext
    $txtLog.ScrolltoCaret
}

function startTimer() {
    Register-ObjectEvent -InputObject $global:timer -EventName Elapsed -SourceIdentifier theTimer -Action {AddToLog('Post to log every 1 second, not as a batch') }
    $global:timer.start()
    Write-Host "Start Timer"
}

function stopTimer() {
    $global:timer.stop()
    Write-Host "Close Function"
    Unregister-Event theTimer
}


########################
# Setup User Interface
########################

[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")

$objForm = New-Object System.Windows.Forms.Form
$objForm.Text = "Timer Example"
$objForm.Size = New-Object System.Drawing.Size(330,380)
$objForm.StartPosition = "CenterScreen"


#Start Button
$btnStart = New-Object System.Windows.Forms.Button
$btnStart.Location = New-Object System.Drawing.Size(10,190)
$btnStart.Size = New-Object System.Drawing.Size(140,35)
$btnStart.Text = "Start"

$btnStart.Add_Click({StartTimer; })
$objForm.Controls.Add($btnStart)

#Stop Button
$btnStop = New-Object System.Windows.Forms.Button
$btnStop.Location = New-Object System.Drawing.Size(150,190)
$btnStop.Size = New-Object System.Drawing.Size(140,35)
$btnStop.Text = "Stop"
$btnStop.Add_Click({StopTimer; })
$objForm.Controls.Add($btnStop)
$btnStop.Enabled  = $true

#Log Area
$lblLog = New-Object System.Windows.Forms.Label
$lblLog.Location = New-Object System.Drawing.Size(10,230)
$lblLog.Size = New-Object System.Drawing.Size(80,20)
$lblLog.Text = "Event Log:"
$objForm.Controls.Add($lblLog)

$txtLog = New-Object System.Windows.Forms.Textbox
$txtLog.Location = New-Object System.Drawing.Size(10,250)
$txtLog.Size = New-Object System.Drawing.Size(290,90)
$txtLog.Multiline = $True
$txtLog.Scrollbars = "vertical"

$txtLog.Add_Click({$txtLog.SelectAll(); $txtLog.Copy()})
$objForm.Controls.Add($txtLog)

$objForm.Add_Shown({$objForm.Activate()})
[void] $objForm.ShowDialog()

感谢您的高级帮助。

-R

最佳答案

我拿走了你拥有的东西，然后看了看这个egg_timer项目，并提出了以下内容:

  $timer = New-Object System.Windows.Forms.Timer
  $timer.Interval = 1000
  $timer.add_tick({AddToLog 'Post to log every 1 second, not as a batch'})



function AddToLog($logtext)
{
    $txtLog.Text = $txtLog.Text + "`r`n" + $logtext
    $txtLog.ScrolltoCaret
}

function startTimer() {

   $timer.start()

}

function stopTimer() {

    $timer.Enabled = $false
    Write-Host "Close Function"

}


########################
# Setup User Interface
########################

[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
[void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")

$objForm = New-Object System.Windows.Forms.Form
$objForm.Text = "Timer Example"
$objForm.Size = New-Object System.Drawing.Size(330,380)
$objForm.StartPosition = "CenterScreen"


#Start Button
$btnStart = New-Object System.Windows.Forms.Button
$btnStart.Location = New-Object System.Drawing.Size(10,190)
$btnStart.Size = New-Object System.Drawing.Size(140,35)
$btnStart.Text = "Start"

$btnStart.Add_Click({StartTimer; })
$objForm.Controls.Add($btnStart)

#Stop Button
$btnStop = New-Object System.Windows.Forms.Button
$btnStop.Location = New-Object System.Drawing.Size(150,190)
$btnStop.Size = New-Object System.Drawing.Size(140,35)
$btnStop.Text = "Stop"
$btnStop.Add_Click({StopTimer; })
$objForm.Controls.Add($btnStop)
$btnStop.Enabled  = $true

#Log Area
$lblLog = New-Object System.Windows.Forms.Label
$lblLog.Location = New-Object System.Drawing.Size(10,230)
$lblLog.Size = New-Object System.Drawing.Size(80,20)
$lblLog.Text = "Event Log:"
$objForm.Controls.Add($lblLog)

$txtLog = New-Object System.Windows.Forms.Textbox
$txtLog.Location = New-Object System.Drawing.Size(10,250)
$txtLog.Size = New-Object System.Drawing.Size(290,90)
$txtLog.Multiline = $True
$txtLog.Scrollbars = "vertical"

$txtLog.Add_Click({$txtLog.SelectAll(); $txtLog.Copy()})
$objForm.Controls.Add($txtLog)


$objForm.Add_Shown({$objForm.Activate()})
[void] $objForm.ShowDialog()

关于Powershell计时器-更新GUI，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20233540/