GroupingElementValueEqualityComparer.equals Method
        
 Compares the grouping element coordinates for equality.
 
         
        Parameters
        
            - a
            
 
            - 
                
Type: GroupingElementValue
First grouping value to compare. 
            - b
            
 
            - 
                
Type: GroupingElementValue
Second grouping value to compare. 
        
        Return Value
        
Type: Boolean
        
True if the grouping values are the same; otherwise, false.