Using a recordset as a source to highlight days

Hey all,

I'm new to Telerik, can someone point me in a direction?  I'm trying to find a way to use a recordset of dates to highlight the cells of a calendar.  I know how to change the style of the cell, but I'm hoping I don't have to go one by one and loop thru them.  Ultimately, it would make sense to reload the calendar one month at a time, when a user changes it, but i'm not seeing anything out there like it.

 Also, is there a solid reference on the DayRenderEventArgs out there that i'm missing? 

Thanks.  I have a 2012.9 version I think.

~D