title: Listbox in Excel - How to determine no selection
body: <p>I have an Excel spreadsheet with a listbox on sheet1 that populates from a named group on sheet2. There are 4 entries in this named group.</p>
  
  <p>I want the user to make a selection from this listbox (1 column) before they do anything else. I'm trying to code to check for a valid selection from the listbox but, TopIndex = 0, and .Value, .Selection, .Selected either don't work or they return 0 but 0 is the index for the first entry in the listbox so it's like I always make a selection.</p>
  
  <p>If I check for Listbox.value &lt;> "" it returns null whether or not I make a selection.</p>
  
  <p>I've searched the internet all night looking for a solution and keep coming up empty handed.</p>
  
  <p>I'm stuck. Looking for suggestions.</p>