Remove all items from indexPathsForSelectedItems, UICollectionView - iphone

Question

How to remove all the items from indexPathSelectdItems. Below is my code I am using to save values to array from indexPathSelectedITems, but need to clear the array when section changes and array should save value as a fresh. But indexPathForSelectedItems add previousSelectedValues also.
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
NSString *seatV;
int cs;
NSString *secVal = [arrSeatSel objectAtIndex:indexPath.section];
NSArray *arrSplit = [secVal componentsSeparatedByString:#":"];
seatV = [arrSplit objectAtIndex:1];
cs = [seatV integerValue];
int v;
NSString *cnt = [NSString stringWithFormat:#"%#",[arrTot objectAtIndex:indexPath.section]];
v = [cnt intValue];
NSString *sect = [NSString stringWithFormat:#"%d", indexPath.section];
if(indexPath.item < v)
{
if([sectionInfo count] < cs)
{
itemPaths = [self.collectionView indexPathsForSelectedItems];
//NSMutableArray *array = [NSMutableArray array];
//array = [self.collectionView indexPathsForSelectedItems];
//sectionInfo = [self.collectionView indexPathsForSelectedItems];
sectionInfo = [NSMutableArray arrayWithArray: [self.collectionView indexPathsForSelectedItems]];
//[sectionInfo addObject:[[self.collectionView indexPathsForSelectedItems] lastObject]];
[selectedItemsInfo setObject:sectionInfo forKey:sect];
cell=[self.collectionView cellForItemAtIndexPath:indexPath];
cell.contentView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"yellow_seat.png"]];
//sectionInfo1 = sectionInfo;
}
else
{
[self.collectionView deselectItemAtIndexPath:[NSIndexPath indexPathForItem:indexPath.row inSection:indexPath.section] animated:YES];
[sectionInfo1 addObject:[selectedItemsInfo objectForKey:sect]];
[selectedItemsInfo setObject:sectionInfo1 forKey:sect];
[sectionInfo removeAllObjects];
}
}
else
{
[self.collectionView deselectItemAtIndexPath:[NSIndexPath indexPathForItem:indexPath.row inSection:indexPath.section] animated:YES];
}
NSLog(#"section array:%#", sectionInfo);
NSLog(#"section array1:%#", sectionInfo1);
NSLog(#"selected seats dict:%#", selectedItemsInfo);
}
So, how to clear previous values indexPathSelectedItems so that it can hold new selected values only?

Answer 1

Try using this code as per your requirement.
[self deleteItemsFromDataSourceAtIndexPaths:selectedItemsIndexPaths];
OR
[self.collectionView deleteItemsAtIndexPaths:selectedItemsIndexPaths];