title: ZK binding string value to datebox
body: <p>I have created a <strong>Listbox</strong> in which one column can contain different components like <strong>Combobox</strong>, <strong>Datebox</strong>, <strong>Decimal box</strong> etc. In One column I have to display <strong>Datebox</strong> or <strong>Decimalbox</strong>   on some condition so i bind <strong>Datebox</strong> and <strong>Decimalbox</strong> inside this column with <strong>String</strong> value. I am getting exception when I bind string value to <strong>datebox</strong> and try to enter the date using popup calender.</p>
  
  <pre><code>    &lt;datebox value="@bind(data.prodValue)" width="250px"&gt;&lt;/datebox&gt;
  
  private String prodValue;
  </code></pre>
  
  <p><strong>prodValue</strong> is of <strong>String</strong> type.When I enter the date in <strong>Datebox</strong>, I am getting exception.
  Can anybody tell me how to use <strong>Datebox</strong> with string binding value?</p>