title: Regular Expression to accept decimal numbers but not single 0
body: <p>I am using <code>ASP.NET Regular Expression Validator</code> to validate a <code>textbox</code>.</p>
  
  <p><strong>Valid Samples:</strong></p>
  
  <pre><code>1
  
  1.1
  
  11.1
  
  11.12
  
  0.1
  
  
  0.12
  </code></pre>
  
  <p><strong>Invalid Samples:</strong></p>
  
  <pre><code>0
  
  1.123
  </code></pre>
  
  <p>As you can see I don't want the input to contain only <code>0</code>.</p>
  
  <p>Currently I have this expression which is allowing <code>0</code>.</p>
  
  <pre><code>^[0-9]{1,2}([/.][0-9]{1,2})?$
  </code></pre>
  
  <p>What can I do to prevent a single 0?</p>
  
  <p>Any help is much appreciated.</p>