This article provides a C# example of how to copy the RVF attribute value of a specific item and add it to the item's Description, overwriting any existing Description content. 


var item = broker.GetItem(SWHandleUtility.ToHandle("x0400000000000B32"));

var rvfAttributeSid = "DRTR";
var attribute = item.FindAttributeWithSID(rvfAttributeSid);
var descr = SWDescription.MakeDescription(attribute.ValueData);
item.Description = descr;