UItableview scrollsToTop is not working when click on button ios - ios

Question

I am having uicollection scrolling in horizontal direction , inside the collection view cell i have two table view - one _tablewView
-another _tblnoti , i have added a button for collapsing the order card , on click of that i want to scroll _tableView to the top , but its not working
on click of drop downbutton i m reloading the table view inside that
- (IBAction)btnDropdownclick:(UIButton*)sender
{
NSIndexPath *indesss = [NSIndexPath indexPathForItem:sender.tag-300 inSection:0];
CollectionViewCell *cell = (CollectionViewCell*) [_InnercollectionView cellForItemAtIndexPath:indesss];
_flag =indesss.item;
shouldCellBeExpanded = !shouldCellBeExpanded;
if(shouldCellBeExpanded)
{
[sender setImage:[UIImage imageNamed:#"uparrow.png"] forState:UIControlStateNormal];
}
else
{
[sender setImage:[UIImage imageNamed:#"downarrow.png"] forState:UIControlStateNormal];
}
cell.shouldCellBeExpanded = !cell.shouldCellBeExpanded ;
[_InnercollectionView performBatchUpdates:^{
[cell.tabelView reloadData];
} completion:^(BOOL finished) {
}];
}
below is code in cell class
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if(_shouldCellBeExpanded){
_heightcheckview.constant = _tabelView.contentSize.height+120;
_tblheight.constant = _tabelView.contentSize.height+20;
}
else
{
_tabelView.scrollsToTop = YES;
_heightcheckview.constant = 195;
_tblheight.constant = 105;
}
if (tableView == _tblNoti) {
static NSString *MyIdentifier = #"noticell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
// self.tblheight .constant = tableView.contentSize.height;
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:MyIdentifier] ;
}
// FoodDescModalClass *orderDataTypess;
if(!(self.arrayforNoti.count == 0))
{
NSDictionary *diction = [self.arrayforNoti objectAtIndex:indexPath.row];
UILabel *lbl = (UILabel*)[cell.contentView viewWithTag:2345];
lbl.text = [diction valueForKey:#"data"];
}
return cell;
}
else if (tableView == _tabelView){
static NSString *MyIdentifier = #"maineecell";
CollTableViewCell *cells = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
// self.tblheight .constant = tableView.contentSize.height;
if (cells == nil)
{
cells = [[CollTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:MyIdentifier] ;
}
if(_havecomment)
{
if(indexPath.row == self.arrayforitems.count)
{
UITableViewCell* celld = [tableView dequeueReusableCellWithIdentifier:#"commentcell"];
UILabel *lblcomment = [celld.contentView viewWithTag:4545];
lblcomment.text = _finalcomment;
lblcomment.layer.borderWidth = 1.0f ;
lblcomment.layer.cornerRadius = 4.0f ;
lblcomment.layer.masksToBounds = YES;
return celld;
}else{
NSDictionary*dict = [self.arrayforitems objectAtIndex:indexPath.row];
cells.lblName.text= [dict valueForKey:#"item"];
cells.lblPrice.text = [dict valueForKey:#"price"];
cells.lblquantity.text = [dict valueForKey:#"qty"];
NSString*type = [dict valueForKey:#"type"];
if([type isEqualToString:#"1"])
{
cells.imgveg.image=[UIImage imageNamed:#"veg"];
}
else if([type isEqualToString:#"2"])
{
cells.imgveg.image=[UIImage imageNamed:#"nonveg"];
}
else
{
cells.imgveg.image=[UIImage imageNamed:#"drink.png"];
}
cells.lblquantity.layer.borderWidth = 1.0f ;
cells.lblquantity.layer.cornerRadius = 4.0f ;
cells.lblquantity.layer.masksToBounds = YES;
}
}
else{
NSDictionary*dict = [self.arrayforitems objectAtIndex:indexPath.row];
cells.lblName.text= [dict valueForKey:#"item"];
cells.lblPrice.text = [dict valueForKey:#"price"];
cells.lblquantity.text = [dict valueForKey:#"qty"];
NSString*type = [dict valueForKey:#"type"];
if([type isEqualToString:#"1"])
{
cells.imgveg.image=[UIImage imageNamed:#"veg"];
}
else if([type isEqualToString:#"2"])
{
cells.imgveg.image=[UIImage imageNamed:#"nonveg"];
}
else
{
cells.imgveg.image=[UIImage imageNamed:#"drink.png"];
}
cells.lblquantity.layer.borderWidth = 1.0f ;
cells.lblquantity.layer.cornerRadius = 4.0f ;
cells.lblquantity.layer.masksToBounds = YES;
}
return cells;
}
else
{
return nil;
}}
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