title: Powershell Windows Forms onClick event
body: <p>I have a Windows forms (in PowerShell), and the form has a button with onclick event but the command in the onclick isn't run. I don't know why, because it can be run sepratley. My sciptblock is here:</p>
  
  <pre><code>[void][reflection.assembly]::loadwithpartialname("System.Windows.Forms")
  $form = New-Object System.Windows.Forms.Form
  $form.Width = 500
  $form.Height = 200
  $form.formborderstyle = 3
  $form.StartPosition = "CenterScreen"
  
  $button1 = New-Object System.Windows.Forms.Button
  $button1.Text = "Search"
  $button1.Height = 25
  $button1.Width = 85
  $button1.Top = 100
  $button1.Left = 25
  $button1_OnClick = 
      {
          Get-EventLog -LogName Security -After $a2.Value.Date | Where-Object 
  {$_.EventID -eq "4800" -or $_.EventID -eq "4801"} | Format-Table
      }
  $button1.add_Click($button1_OnClick)
  $form.Controls.Add($button1)
  
  $form.ShowDialog()
  </code></pre>
  
  <p>Please help to resolv my problem. 
  Thanks advance!</p>