ios - Not sure how to set up a UITableViewController -

i created detailviewcontroller .h , .m files. created uitableviewcontroller in storyboard , connected files made.

then added code detailviewcontroller.m file:

#import "masterviewcontroller.h" #import "detailviewcontroller.h"  // 1 #import "rageiaphelper.h" #import <storekit/storekit.h>  // 2 @interface masterviewcontroller () {     nsarray *_products; } @end  @implementation masterviewcontroller  // 3 - (void)viewdidload {     [super viewdidload];      self.title = @"in app rage";      self.refreshcontrol = [[uirefreshcontrol alloc] init];     [self.refreshcontrol addtarget:self action:@selector(reload) forcontrolevents:uicontroleventvaluechanged];     [self reload];     [self.refreshcontrol beginrefreshing];  }  // 4 - (void)reload {     _products = nil;     [self.tableview reloaddata];     [[rageiaphelper sharedinstance] requestproductswithcompletionhandler:^(bool success, nsarray *products) {         if (success) {             _products = products;             [self.tableview reloaddata];         }         [self.refreshcontrol endrefreshing];     }]; }  #pragma mark - table view  - (nsinteger)numberofsectionsintableview:(uitableview *)tableview {     return 1; }  // 5 - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section {     return _products.count; }  - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {     uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:@"cell" forindexpath:indexpath];      skproduct * product = (skproduct *) _products[indexpath.row];     cell.textlabel.text = product.localizedtitle;      return cell; }  @end 

but compile errors on lines this:

self.refreshcontrol = [[uirefreshcontrol alloc] init]; 

saying self.refreshcontrol not recognized. how can if file uitableview file?

edit:

this .h

// //  detailviewcontroller.h //  entrepreneur // //  created macoslion on 8/7/13. //  copyright (c) 2013 macoslion. rights reserved. //  #import <uikit/uikit.h>   @interface detailviewcontroller : uitableviewcontroller  @end 

i think have mistake somewhere...

see, show implementation of :

@implementation masterviewcontroller 

but definition of :

@interface detailviewcontroller : uitableviewcontroller 

that's why, of course, can't find refreshcontrol in masterviewcontroller : property of uitableviewcontroller, of detailviewcontroller.

please tell me if it's not clear you.