Invoking a scriptblock when clicking a radio button - sql-server

Question

I want my GUI to be able to dynamically produce an event based on the user clicking either Radio Button 1 or Radio Button 2.
I have seen some good tutorials on this but its called during a click on a button. I want to call it OnClick of the radio button.
Here is the code I have so far:
#Load Assemblies
[System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
[System.Reflection.Assembly]::LoadWithPartialName("System.Drawing") | Out-Null
$net = New-Object -ComObject Wscript.Network
Add-Type -AssemblyName System.Windows.Forms
#Create the Form
#Draw form
function SQLDoTasks{
$Form = New-Object System.Windows.Forms.Form
$Form.width = 800
$Form.height = 600
$Form.BackColor = "lightblue"
$Form.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::Fixed3D
$Form.Text = "Daily DBA Tasks"
$Form.maximumsize = New-Object System.Drawing.Size(525,350)
$Form.startposition = "centerscreen"
$Form.KeyPreview = $True
$Form.Add_KeyDown({if ($_.KeyCode -eq "Enter") {}})
$Form.Add_KeyDown({if ($_.KeyCode -eq "Escape")
{$Form.Close()}})
# Create a group that will contain your radio buttons
$MyGroupBox = New-Object System.Windows.Forms.GroupBox
$MyGroupBox.Location = '40,30'
$MyGroupBox.size = '400,150'
$MyGroupBox.text = "Specify the Sql environment?"
#Declare option buttons to allow user to select Dev or System Test
$RadioButton1 = New-Object System.Windows.Forms.RadioButton #create the radio button
$RadioButton1.Location = '20,40'
$RadioButton1.size = '350,20'
$RadioButton1.Checked = $false #is checked by default
$RadioButton1.Text = "Dev" #labeling the radio button
$RadioButton1.Checked($event)
#Declare option buttons to allow user to select Dev OR System Test
$RadioButton2 = New-Object System.Windows.Forms.RadioButton #create the radio button
$RadioButton2.Location = '20,70'
$RadioButton2.size = '350,20'
#$RadioButton2.Location = new-object System.Drawing.Point(10,40) #location of the radio button(px) in relation to the group box's edges (length, height)
#$RadioButton2.size = New-Object System.Drawing.Size(80,20) #the size in px of the radio button (length, height)
$RadioButton2.Checked = $false #is checked by default
$RadioButton2.Text = "System test" #labeling the radio button
$RadioButton2.Checked($event)
$event={
if ($RadioButton1.Checked){
[System.Windows.Forms.MessageBox]::Show("You select Dev")}
elseif ($RadioButton2.Checked){
[System.Windows.Forms.MessageBox]::Show("You Selected System Test")}
}
#Create List Box
$ListBox1 = New-Object System.Windows.Forms.ListBox
$ListBox1.Location = New-Object System.Drawing.Size(20,200)
$ListBox1.Size = New-Object System.Drawing.Size(260,20)
$ListBox1.Height = 80
#POPULATE WHAT IT WILL HOLD
$Servers = get-content -path "xxxx.csv"
write-host $Servers
ForEach ($Server in $Servers){
#$NL = "`r`n"
[void] $ListBox1.Items.Add($Server)
}
#Create the Form
# Add all the GroupBox controls on one line
$Form.Controls.Add($ListBox1)
$form.Controls.AddRange(#($MyGroupBox))
$MyGroupBox.Controls.AddRange(#($Radiobutton1,$RadioButton2))
$Form.Add_Shown({$Form.Activate()})
$dialogResult =$Form.ShowDialog()
}
SQLDoTasks

Answer 1

First, you have to declare the $event scriptblock before you add the event handler. So I would define both buttons, then the scriptblock and then add the handlers. Also, you probably should use the Add_Click callback:
#....
$RadioButton2 = New-Object System.Windows.Forms.RadioButton #create the radio button
$RadioButton2.Location = '20,70'
$RadioButton2.size = '350,20'
#$RadioButton2.Location = new-object System.Drawing.Point(10,40) #location of the radio button(px) in relation to the group box's edges (length, height)
#$RadioButton2.size = New-Object System.Drawing.Size(80,20) #the size in px of the radio button (length, height)
$RadioButton2.Checked = $false #is checked by default
$RadioButton2.Text = "System test" #labeling the radio button
$event={
if ($RadioButton1.Checked){
[System.Windows.Forms.MessageBox]::Show("You select Dev")}
elseif ($RadioButton2.Checked){
[System.Windows.Forms.MessageBox]::Show("You Selected System Test")}
}
$RadioButton1.Add_Click($event)
$RadioButton2.Add_Click($event)