ios - heightForRowAtIndexPath setting height for wrong row -

i have weird problem heightforrowatindexpath function. need height 3rd row higher, sets height next (in case 4the) row.

i'll explain:

- (cgfloat)tableview:(uitableview *)tableview heightforrowatindexpath:(nsindexpath *)indexpath {   int height = 40;   if(indexpath.row == 3) height = 120;   nslog(@"cell %i [height = %i]", indexpath.row, height);   return height; } 

it logs this: (seems good)

       cell 0 [height = 40]        cell 1 [height = 40]        cell 2 [height = 40]        cell 3 [height = 120]        cell 4 [height = 40]        cell 5 [height = 40]        ... 

and looks this:

** (to clear: gray row not section different cell style.)

am missing badly or wrong? thanks!

as requested, added cellforrowatindexpath code.

- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {   static nsstring *cellidentifier = @"frontendcell";   int celltype = [[self.celltypes objectatindex:indexpath.row] integervalue];   uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:cellidentifier];    switch (celltype) {     case frontend_cell_type_detail:{         cell = [[frontenddetailtableviewcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:cellidentifier];         cell.title.text = [self.titles objectatindex:indexpath.row];         cell.description.text = [self.descriptions objectatindex:indexpath.row];         cell.price.text = [self.details objectatindex:indexpath.row];         cell.price.text = [self.details objectatindex:indexpath.row];     }break; } 

maybe, works fine not presented expect.

i mean height set 120 row3 design shifted looks next cell has 120 height. please try select cells, maybe selection background informative. try play cell design clarify that