title: Regex excluding all numbers
body: <p>Hello I'm trying to search all the matching expressions in a file through a Regex in VB.NET 
  I have the function:</p>
  
  <pre><code>Dim written As MatchCollection = Regex.Matches(ToTreat, "\bGlobalIndexImage = \'(?![0-9])([A-Za-z])\w+\'")
  For Each writ As Match In written
      For Each w As Capture In writ.Captures
          MsgBox(w.Value.ToString)
      Next
  Next
  </code></pre>
  
  <p>I have this Regex now:</p>
  
  <pre><code>\bGlobalIndexImage = \'(?![0-9])([A-Za-z])\w+\'
  </code></pre>
  
  <p>I'm trying to match all occurrences under this form:</p>
  
  <pre><code>GlobalIndexImage = 'images'
  GlobalIndexImage = 'Search'
  </code></pre>
  
  <p>But I also get values like this which I don't want to match:</p>
  
  <pre><code>GlobalIndexImage = 'Z0003_S16G2'
  </code></pre>
  
  <p>So I wanted in my Regex to simply exclude a match if it contains numbers.</p>