Problem in selecting a line - UITableView

[Chailon]

good morning,
I have a problem in selecting items brought through the filter UISearchBar in a UITableView. When I select the item brought by query, the selected item appears with the name of 1º record. I using in a customization table that allows me to display multiple columns.
Table:

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 

    return 1; 
} 
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 

    return [searched count]; 
} 
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath (NSIndexPath *)indexPath { 

    NSString *MyIdentifier = [NSString stringWithFormat:@"MyIdentifier %i", indexPath.row]; 
    Grade *cell = (Grade *)[tableView dequeueReusableCellWithIdentifier:MyIdentifier]; 
    tv.autoresizesSubviews = YES; 

    if (cell == nil) { 

            cell = [[[Grade alloc] initWithFrame:CGRectZero reuseIdentifier:MyIdentifier] autorelease]; 
    } 

    UILabel *label = [[[UILabel alloc] initWithFrame:CGRectMake(0.0, 0, 80.0, tableView.rowHeight)] autorelease]; 

    [cell addColumn:100]; 
    label.tag = LABEL_TAG; 
    label.font = [UIFont systemFontOfSize:14.0]; 
    label.text = [searched objectAtIndex:indexPath.row]; 
    label.textAlignment = UITextAlignmentRight; 
    label.textColor = [UIColor blackColor]; 
    label.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleHeight; 
    [cell.contentView addSubview:label]; 

    label =  [[[UILabel alloc] initWithFrame:CGRectMake(110.0, 0, 80.0, tableView.rowHeight)] autorelease]; 
    [cell addColumn:170]; 
    label.tag = VALUE_TAG; 
    label.font = [UIFont systemFontOfSize:14.0]; 
    label.text = [searched objectAtIndex:indexPath.row]; 
    label.textAlignment = UITextAlignmentRight; 
    label.textColor = [UIColor blackColor]; 
    label.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleHeight; 
    [cell.contentView addSubview:label]; 

    return cell; 
}

Search:

- (void) search:(NSString *) matchString {

    NSString *upString = [matchString uppercaseString];

    if (searched) {

        [searched release];
    }

    searched = [[NSMutableArray alloc] init];

    for (NSString *line in itemsList) {

        if ([matchString length] == 0) {

            [searched addObject:line];
            continue;
        }

        NSRange range = [[line uppercaseString] rangeOfString:upString];

        if (range.location != NSNotFound) {

            [searched addObject:line];
        }
    }

    [tv reloadData];
}

#pragma mark UISearchBarDelegate

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {

    [self search:searchText];
}

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {

    [searchBar resignFirstResponder];
}

- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {

    [searchBar resignFirstResponder];
}

Grid:

- (id)initWithFrame:(CGRect)frame reuseIdentifier:(NSString *)reuseIdentifier {

    if (self == [super initWithFrame:frame reuseIdentifier:reuseIdentifier]) {

        // Initialization code
        columns = [NSMutableArray arrayWithCapacity:5];
        [columns retain];
    }

    return self;
}

- (void)addColumn:(CGFloat)position {

    [columns addObject:[NSNumber numberWithFloat:position]];
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {

    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}

- (void)drawRect:(CGRect)rect { 

    CGContextRef ctx = UIGraphicsGetCurrentContext();

    // just match the color and size of the horizontal line
    CGContextSetRGBStrokeColor(ctx, 0.5, 0.5, 0.5, 1.0); 
    CGContextSetLineWidth(ctx, 0.25);

    for (int i = 0; i < [columns count]; i++) {

        // get the position for the vertical line
        CGFloat f = [((NSNumber*) [columns objectAtIndex:i]) floatValue];
        CGContextMoveToPoint(ctx, f, 0);
        CGContextAddLineToPoint(ctx, f, self.bounds.size.height);
    }

    CGContextStrokePath(ctx);

    [super drawRect:rect];
} 

- (void)dealloc {

    [super dealloc];
    [columns dealloc];
}

I need a suggestion on how to solve this problem.