RepeaterGroupInstance.getItem Method
        
 Gets the item with the specified columnOrdinal and rowOrdinal.
 
         
        Parameters
        
            - columnOrdinal
            
 
            - 
                
Type: Number (Integer)
The repeater column tuple ordinal. 
            - rowOrdinal
            
 
            - 
                
Type: Number (Integer)
The repeater row tuple ordinal. 
        
        Return Value
        
Type: RepeaterGroupItem - May be null
Returns the item for the coordinate specified, or null if the item does not exist.