Multi tool use

Need to create, use and store dynamic object names in Powershell

I am loading in a text file and looping through each line, and trying to print a checkbox, in a powershell form. However, the way below, all checkboxes have the same variable/object name, which makes it impossible to tell them apart.

I need a way to dynamically create $checkbox0 through $checkbox(# of lines in text file, which can change), and fill them in below, as well as store the names, so i can validate if they are clicked later

$pFile = Get-Content "C:results.txt"
$rowCounter = 0
foreach($line in $pFile){
$checkbox = New-Object System.Windows.Forms.CheckBox
$checkbox.UseVisualStyleBackColor = $True
$System_Drawing_Size = New-Object System.Drawing.Size
$checkbox.AutoSize = "true"
$checkbox.TabIndex = $rowCounter
$checkbox.Text = $line
$System_Drawing_Point = New-Object System.Drawing.Point
$System_Drawing_Point.X = 25
$yValue = (20 * $rowCounter)
$System_Drawing_Point.Y = $yValue
$checkbox.Location = $System_Drawing_Point
$checkbox.DataBindings.DefaultDataSourceUpdateMode = 0
$Form1.Controls.Add($checkbox)
$rowCounter = $rowCounter + 1
}


$checkbox0

$checkbox[0]

1 Answer
1

Control has Name property which is a string. Assigning a unique name to the control, you can find it later in the Controls collection of the parent control.

Control

Name

Controls

Also if you correctly assign an event handler to an event of the control, you can receive the control in the sender parameter of the event handler.

In the following code, I've created a list of CheckBox controls and handles their CheckedChanged event for them:

CheckBox

CheckedChanged

Add-Type -AssemblyName System.Windows.Forms
$form = New-Object System.Windows.Forms.Form
$flp = New-Object System.Windows.Forms.FlowLayoutPanel
$form.Controls.Add($flp)
#Let's say you read the following values from file
$array = ("Lorem", "Ipsum", "Dolor")
$i = 0
$array | % {
$checkBox = New-Object System.Windows.Forms.CheckBox
$checkBox.Text = $_
$checkBox.Name = "checkBox_$i"
$flp.Controls.Add($checkBox)
$checkBox.Add_CheckedChanged({
$index = $flp.Controls.IndexOf($this)
$name = $this.Name
$text = $this.Text
$value = $this.Checked
[System.Windows.Forms.MessageBox]::Show("Index: $index" +"`n" +
"Name: $name" + "`n" +
"Text: $text" + "`n" +
"Value: $value" + "`n")
})
$i++
}
$form.ShowDialog()
$form.Dispose()


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