scroll tableview programatically with custom cell - uitableview

Question

EDITED CODE..
Hello frds, i have one buttom in UIScrollview when i clicked on that button then i get btn.tag , so after that i want to scroll UITableView programatically.
Here is my Code.
//-- Custom Scrollview--//
- (void)loadscrollViews
{
int a =[DBConnection rowCountForTable:#"DD_Pic_Tags_Comments" where:[NSString stringWithFormat:#"img_Moment_id=%#",STR_Select_moment_id_for_timelinepage2]];
numofimageinscrollview=a;
int x=0;
for (int i = 0; i < a; i++)
{
UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];
btn.frame=CGRectMake(x, 0,scrollView.frame.size.height,scrollView.frame.size.height);
btn.tag=i;
UIImage *image = [UIImage imageWithContentsOfFile:[NSString stringWithFormat:#"%#/%#.jpg",Pathforimage,[[Array_result objectAtIndex:i] objectForKey:#"img_File_Name"]]];
[btn setImage:image forState:UIControlStateNormal];
[btn addTarget:self action:#selector(imageClick:) forControlEvents:UIControlEventTouchUpInside];
[scrollView addSubview:btn];
scrollView.contentSize=CGSizeMake((i+2)*scrollView.frame.size.height,scrollView.frame.size.height);
x+=scrollView.frame.size.height+5;
}
}
-(void)imageClick:(id)sender
{
UIButton *btn=(UIButton *)sender; //UIScrollView Button
int count = (int)btn.tag;
NSLog(#"click on small image in Scrollview>> count = %d",count);
NSIndexPath *indexpath=[NSIndexPath indexPathForRow:count inSection:0]; //Set Count For RoW
NSLog(#"%d %d",indexpath.row,indexpath.section);
[self.Table reloadData];
[self.Table scrollToRowAtIndexPath:indexpath
atScrollPosition:UITableViewScrollPositionTop
animated:NO];
}
Get Error like,
2014-08-25 16:34:27.757 Omoment[5163:60b] click on small image in Scrollview>> count = 2
2014-08-25 16:34:27.758 Omoment[5163:60b] 2 0
2014-08-25 16:34:27.761 Omoment[5163:60b] *** Terminating app due to uncaught exception 'NSRangeException', reason: '-[UITableView _contentOffsetForScrollingToRowAtIndexPath:atScrollPosition:]: row (2) beyond bounds (0) for section (0).'
*** First throw call stack:
libc++abi.dylib: terminating with uncaught exception of type NSException
but,
app crash , but when i set NSIndexPath *indexpath=[NSIndexPath indexPathForRow:1 inSection:0];
//at that time app does not crash, & there is no output in uitableview, & also scrollview did not scroll also..

Answer 1

I think you have not defined the tag for that image in cellforrowatindexpath. I have used a button instead of image.I hope it works for u.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"CustomCell";
CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[[NSBundle mainBundle] loadNibNamed:simpleTableIdentifier owner:self options:nil] objectAtIndex:0];
}
cell.txtlabel.text = [NSString stringWithFormat:#"Hello %d", indexPath.row];
[cell.btnnn addTarget:self action:#selector(btnPressed:) forControlEvents:UIControlEventTouchUpInside];
cell.btnnn.tag=indexPath.row;
return cell;
}
-(void)btnPressed:(id)sender{
UIButton *btn=(UIButton *)sender; //UIScrollView Button
int count = (int)btn.tag;
NSLog(#"click on small image in Scrollview>> count = %d",count);
NSIndexPath *indexpath=[NSIndexPath indexPathForRow:count inSection:0]; //Set Count For RoW
NSLog(#"%d %d",indexpath.row,indexpath.section);
// [self.tbl reloadData];
[self.tbl scrollToRowAtIndexPath:indexpath
atScrollPosition:UITableViewScrollPositionTop
animated:NO];
}

Answer 2

You need to scroll the Scrollview.
For this first calculate the CGPoint up to which you need to scroll.
Then use this:
- (void)setContentOffset:(CGPoint)contentOffset animated:(BOOL)animated
So your final code would be something like this:
-(void)btnPressed:(id)sender{
UIButton *btn=(UIButton *)sender; //UIScrollView Button
CGFloat y_point = btn.center.y; // Adjust the y point according to you
CGPoint thePoint = CGPointMake(0, y_point); // Assuming its a vertical scroll
[self.myScroll setContentOffset:thePoint animated:YES];
}