asp.net regular expression validator for decimal
<p>Am using the below expression to validate a textbox with decimal number. But it accept 12, -1.0,12.0,12.5,1.0 etc. But i want a regular expression like this "12.4". First two digit and decimal point and followed by a single digit. </p>

<pre><code>ValidationExpression="^-?[0-9]{0,2}(\.[0-5]{1,1})?$|^-?(100)(\.[0]{1,2})?$" 
</code></pre>
