adds a new sorting rule to collection
<cfset sort.add("name","type")>
Parameters:
clears collection (deletes all specified sorting rules).
<cfset sort.clear()>
Parameters:
check if there are some rules in collection for the specified field and returns related hash.
<cfset index = sort.index("name")>
Parameters:
name - name of the field Returns:
true - if collection contains rule(s) for the specified field.
array of all specified sorting rules.
<cfset name = sort.rules[1]["name"]>
<cfset sort.rules[1]["direction"]="DESC">
Properties: