title: Double quotes in regular expression control
body: <p>In my below mentioned reqular expression, how can i add double quotes ?</p>
  
  <pre><code> &lt;asp:RegularExpressionValidator SetFocusOnError="true" ID="rev" runat="server"
                                  Display="None" ValidationGroup="question" ErrorMessage="" ControlToValidate="txtQuestion"
                                  ValidationExpression="^[0-9a-zA-Z-/'? ]+$"&gt; &lt;/asp:RegularExpressionValidator&gt;
  </code></pre>