This my current code which works fine for set the dates but I want to set the current date as default how can I get this value? It's possibly to use system.DateTime.Now as a class of an object for get it?
<object type="Date" singleton="false">
<property name="StartDate" value="2000-01-01" />
</object>
You can use the expression language (SpEL) inside the xml instead of value to call system types.