How to sort object with property in NSArray.

@interface Person : NSObject
@property (nonatomic, retain) NSString *Name;
@property (nonatomic, retain) NSString *City;
@property (nonatomic, retain) NSString *Country;
@end

Person *p1=[Person alloc]init];
p1.Name=@“Anil”;
p1.City=@“Uttarpradesh”;
p1.Country=@“India”;

Person *p2=[Person alloc]init];
p2.Name=@“Rakesh”;
p2.City=@“Uttarpradesh”;
p2.Country=@“India”;

Person *p3=[Person alloc]init];
p3.Name=@“Mayank”;
p3.City=@“Uttarpradesh”;
p3.Country=@“India”;

NSArray*UnSortedArray=[NSArray arrayWithObjects:p1,p2,p3, nil];

   NSArray *sortedArray=nil;
   Bool isUseCaseInsensitiveCompare=false;
    @try
    {
    NSSortDescriptor*valueDescriptor = nil;
    if(isUseCaseInsensitiveCompare)
    {
valueDescriptor=[[NSSortDescriptor alloc] initWithKey:@”Name” ascending:YES selector:@selector(caseInsensitiveCompare:)];
    }
    else{
       valueDescriptor=[[NSSortDescriptor alloc] initWithKey:@”Name” ascending:YES];
    }
    NSMutableArray * descriptors= [NSMutableArray arrayWithObject:valueDescriptor];
    sortedArray =[UnSortedArray sortedArrayUsingDescriptors:descriptors ];
    }
    @catch (NSException*ex) {
        NSLog(@"%@",ex.reason);
    }

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How to sort object with property in NSArray.

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