title: PowerShell CheckedListBox only select one option at a time
body: <p>I Have a PowerShell form that contains a <code>'System.Windows.Forms.CheckedListBox'</code> object. Currently I am able to select more than one checkbox option at a time:</p>
  
  <p><img src="https://i.stack.imgur.com/aS73Q.png" alt="CheckedListBox with 2 selected"></p>
  
  <p>Is there a easy way of making the <code>CheckedListBox</code> only allow one selection?</p>
  
  <p><img src="https://i.stack.imgur.com/BV7LC.png" alt="CheckedListBox with 1 selected"></p>
  
  <p>or will I have to use some <code>'onClick'</code> event logic within my script? </p>
  
  <p><strong>CheckListBox Proteries:</strong></p>
  
  <pre><code>$checkedlistbox2.BackColor = 'Control'
  $checkedlistbox2.BorderStyle = 'None'
  $checkedlistbox2.CheckOnClick = $True
  $checkedlistbox2.ColumnWidth = 56
  $checkedlistbox2.FormattingEnabled = $True
  [void]$checkedlistbox2.Items.Add("W2K")
  [void]$checkedlistbox2.Items.Add("WXP")
  [void]$checkedlistbox2.Items.Add("WS7")
  $checkedlistbox2.Location = '107, 284'
  $checkedlistbox2.MultiColumn = $True
  $checkedlistbox2.Name = "checkedlistbox2"
  $checkedlistbox2.SelectionMode = 'None'
  $checkedlistbox2.Size = '192, 15'
  $checkedlistbox2.TabIndex = 66
  </code></pre>