ios - UITableViewCell reusability issue. Modifying one cell is affecting others -

whenever cell section 3 selected. i'm updating datasource array, , cell's background color changing correctly.

however, whenever scroll start seeing random cells modified background color, knowing don't mention in cellforrowatindexpath method , each section in tableview populated separate datasource array/dictionary!

(i'm using storyboard handle ui setup)

here's code (focus on section 3)

- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {  ectextfieldtableviewcell *cell  = [tableview dequeuereusablecellwithidentifier:ksettingstextfieldcellreuseidentifier                                                                   forindexpath:indexpath];  if (indexpath.section == 0) {      cell.celltextfield.text = [self.personalinfodatasource valueforkey:kuservalueskey][indexpath.row];   } else if (indexpath.section == 1) {       cell.celltextfield.text = [self.contactinfodatasource valueforkey:kuservalueskey][indexpath.row];   } else if (indexpath.section == 2) {       cell.celltextfield.text = [self.professionaldetailsdatasource valueforkey:kuservalueskey][indexpath.row];   } else if (indexpath.section == 3) { //---- problems here        usermeta *metaobj = self.interestdatasource[indexpath.row];       cell.celltextfield.userinteractionenabled = no;      cell.celltextfield.text = metaobj;       if (self.user.interest.count > 0 && [self.user.interest contains:metaobj.name] ) {          cell.backgroundcolor = [uicolor redcolor];      }           }   return cell; } 

and here's i'm doing datasource modifications

- (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath {  if (indexpath.section == 0 && indexpath.row == 2) {      // stuff  } else if (indexpath.section == 3) { //---- problems here       ectextfieldtableviewcell *cell = [self.tableview cellforrowatindexpath:indexpath];      cell.backgroundcolor = [uicolor redcolor];      usermeta *metaobj = self.interestdatasource[indexpath.row];     [self.user.interest addobject:metaobj];  }   } 

as wrote, cells reused. cell displayed in section 3 reused in section 0.

therefore have make sure all parameters set defined state.

that means if set userinteractionenabled no , background color depending on condition red in section 3 have set userinteractionenabled yes , color default color in other sections. further have set color default color in section 3 if condition false.