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    <p>As Wubao mentioned, you have to use the <code>UIScrollViewDelegate</code>. But you have to check, which scrollView is dragging / active at the moment. Because else you will have the problem that you will get delegate callbacks from both scrollviews and they will give their change to each other at the same time resulting in an endless loop / in endless scrolling.</p> <p>In detail, you have to check: <code>- (void)scrollViewDidScroll:(UIScrollView *)scrollView</code></p> <p>But you have to remember the previous offset, so you do know the change of the value. (Or your views have the same height. Then you could just use <code>contentSize.height-offset</code> as the offset for the other view.</p> <p>I'll try to write it down a little bit (untested):</p> <pre><code>@interface ViewController () &lt;UITableViewDelegate,UIScrollViewDelegate&gt; // instances of your tableviews @property (nonatomic, strong) UITableView *tableLeft; @property (nonatomic, strong) UITableView *tableRight; // track active table @property (nonatomic, strong) UIScrollView* activeScrollView; // helpers for contentoffset tracking @property (nonatomic, assign) CGFloat lastOffsetLeft; @property (nonatomic, assign) CGFloat lastOffsetRight; @end @implementation ViewController - (void) viewDidLoad { [super viewDidLoad]; self.tableLeft.delegate = self; self.tableRight.delegate = self; } – (void) scrollViewWillBeginDragging: (UIScrollView*) scrollView { self.activeScrollView = scrollView; self.tableViewRight.userInterActionEnabled = (self.tableViewRight == scrollView); self.tableViewLeft.userInterActionEnabled = (self.tableViewLeft == scrollView); } - (void) scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate { if(!decelerate) { self.activeScrollView = nil; self.tableViewRight.userInterActionEnabled = YES; self.tableViewLeft.userInterActionEnabled = YES; } } - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { self.activeScrollView = nil; self.tableViewRight.userInterActionEnabled = YES; self.tableViewLeft.userInterActionEnabled = YES; } - (void) scrollViewDidScroll:(UIScrollView *)scrollView { if(self.activeScrollView == self.tableViewLeft) { CGFloat changeLeft = self.tableViewLeft.contentOffset.y - self.lastOffsetLeft; self.tableViewRight.contentOffset.y += changeLeft; } else if (self.activeScrollView == self.tableViewRight) { CGFloat changeRight = self.tableViewRight.contentOffset.y - self.lastOffsetRight; self.tableViewLeft.contentOffset.y += changeRight; } self.lastOffsetLeft = self.tableViewLeft.contentOffset.y; self.lastOffsetRight = self.tableViewRight.contentOffset.y; } @end </code></pre> <p>Thats it basically. It also locks the not active scrollview. Because scrolling both would result in ugly behaviour. Also <code>contentOffset.y += changeLeft;</code> wont work probably. You have to create a new CGPoint/CGSize.</p>
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    1. COcan you pls provide a bit of code..lil tough to grab..
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    2. COedited: added code example (untested)
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    3. COthanks jaydee...I try to implement it by my own..will notify you if I able to run it successfully.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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