title: ajax calendar date validation
body: <p>i want to validate my ajax calendar so that it can only be set for a minimum of three months from the current days date. </p>
  
  <p>Using asp.net with c# so curious as to how it works. </p>
  
  <p>Here is my code so far:</p>
  
  <pre><code>        &lt;asp:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="WarrantyTB" Format="dd/MM/yyyy" PopupButtonID="WarrantyCal"&gt;&lt;/asp:CalendarExtender&gt;
              &lt;asp:TextBox ID="WarrantyTB" runat="server" MaxLength="10" Width="100%"&gt;&lt;/asp:TextBox&gt;
  </code></pre>