问Powershell将textbox作为函数参数传递

EN

#Set click event to button:
function Set-FileDialogButton($button, $inputTextBox){
    $button.Add_Click(
        {
            $FileBrowser = New-Object System.Windows.Forms.OpenFileDialog -Property @{ InitialDirectory = $loadpath}
            $fileBrowserReturned = $FileBrowser.ShowDialog()
            if($fileBrowserReturned -eq "OK"){
                $inputTextBox.Text = $FileBrowser.FileName
                $inputTextBox.SelectionStart = $inputTextBox.Text.Length;
            }                   
        }.GetNewClosure()
    )
}

Add-Type -assembly System.Windows.Forms
$main_form = New-Object System.Windows.Forms.Form
$main_form.Text ='AP209 Converter GUI'

$main_form.Width = 300
$main_form.Height = 200
$main_form.AutoSize = $true

#Creates a label and text box:
function New-TextBox($labelText, $x, $y, $w){
    $label = New-Object System.Windows.Forms.Label
    $label.Text = $labelText
    $label.Location  = New-Object System.Drawing.Point($x, $y)
    $label.AutoSize = $true
    $main_form.Controls.Add($label)

    $textbox            = New-Object system.Windows.Forms.TextBox
    $textbox.multiline  = $false
    $textbox.width      = $w
    $textbox.height     = 20
    $textbox.location   = New-Object System.Drawing.Point(($x + 50), $y)
    $main_form.Controls.Add($textbox)

    return $textbox
}
#Creates a button with $text as label:
function New-Button($text, $x, $y, $w, $h){
    $button = New-Object System.Windows.Forms.Button
    $button.Location = New-Object System.Drawing.Size($x, $y)
    $button.Size = New-Object System.Drawing.Size($w, $h)
    $button.Text = $text
    $main_form.Controls.Add($button)
    return $button
}

$textBoxW = 100
$labelX = 0
$buttonX = $x + 155

$y = 10
$dy = 30

$buttonW = 25
$buttonH = 20

#Create 3 text boxes and buttons:
$textbox1 = New-TextBox "File 1" $labelX  $y $textBoxW
$textbox1.Name = 'textbox1'
$button1  = New-Button  "..."    $buttonX $y $buttonW $buttonH
$button1.Name = 'button1'
$y = $y + $dy
$textbox2 = New-TextBox "File 2" $labelX  $y $textBoxW
$textbox2.Name = 'textbox2'
$button2  = New-Button  "..."    $buttonX $y $buttonW $buttonH
$button2.Name = 'button2'
$y = $y + $dy
$textbox3 = New-TextBox "File 3" $labelX  $y $textBoxW
$textbox3.Name = 'textbox3'
$button3  = New-Button  "..."    $buttonX $y $buttonW $buttonH
$button3.Name = 'button3'


foreach( $control in $main_form.Controls ) {

    if( $control.Name -like 'button*' ) {
        $control.Add_Click(
            {
                $FileBrowser = New-Object System.Windows.Forms.OpenFileDialog -Property @{ InitialDirectory = $loadpath}
                $fileBrowserReturned = $FileBrowser.ShowDialog()
                if($fileBrowserReturned -eq [System.Windows.Forms.DialogResult]::OK ) {
                    $controlNumber = $this.Name -replace '^\D+(\d+)$', '$1'
                    $textboxName   = 'textbox' + $controlNumber
                    foreach( $control in $this.parent.Controls ) {
                        if( $control.Name -eq $textboxName ) {
                            $control.Text = $FileBrowser.FileName 
                            $control.SelectionStart = $control.Text.Length
                        }
                    }
                }
            } )

    }

}


$main_form.ShowDialog()