title: asp.net textbox double (0,00) value validation
body: <p>I have a problem about validation controls. I have a textbox and I want to get amount value from this control. I use <code>RegularExpressionValidator</code> with this regex</p>
  
  <pre><code>^(\d+([\,]\d*)?)|(\d*([\,]\d+))$
  </code></pre>
  
  <p>and also I add <code>requiredfieldvalidator</code>. It is ok but I need one more control because I set the default text value <code>0,00</code> and I don't want to be able to pass with <code>0,00</code> it must be <code>&gt;0,00</code>.</p>
  
  <p>What can I do?</p>
  
  <p><code>RangeValidator</code> is useless in this situation because <code>0,00-x,xx</code> not acceptable for me. Please help.</p>