Rearrange collection view cells within it's section

Unless I miss something, you want to authorise change only within the same section. So, you should change line 6 as:

Code Block 
        if (sourceSection == destSection) {

With your code, you could move from section 0 to section 1.

In the else { }, you could just emit a beep, to let user know something wrong occurred.

Or even better, create a counter of mismoves:

Code Block 
var counter = 0

In else, increment counter and trigger alert only if count is 3

Code Block 
} else {
  count += 1
  if count >= 3 {
    // display alert
    count = 0  // Then reset count to 0
  } else {
    // play a beep
  }
}

If that solves the problem, don't forget to close the thread by marking correct answer.
Otherwise, please give details on errors:

I am using following code but It is giving me errors...

I used your suggestion of 'if (sourceSection == destSection)' but user is able to still drag from section 1 to 0...

Also used your code for else statement but it never gets called.

I think answer should be Collection View 'Section' Specific.

As per requirement user should be able to only move cells within sections i.e. Section 1 cells should be rearranged within section 1 only..

I was able to solve it myself...

Thanks Again...

Have you tried implementing collectionView(_:targetIndexPathForMoveFromItemAt:toProposedIndexPath:)?
collectionView(_:targetIndexPathForMoveFromItemAt:toProposedIndexPath:)

Code Block 
    func collectionView(_ collectionView: UICollectionView, targetIndexPathForMoveFromItemAt originalIndexPath: IndexPath, toProposedIndexPath proposedIndexPath: IndexPath) -> IndexPath {
        if originalIndexPath.section == proposedIndexPath.section {
            return proposedIndexPath //Accept moving to the proposedIndexPath
        } else {
            return originalIndexPath //Keep staying at the originalIndexPath
        }
    }

@elitedeveloper 

I was able to solve it myself...

It would be kind to explain how. And don't forget to close the thread.

@Claude31

I used solution similar to OOPer has given above and it solved the problem...

Yes, that's a clean way to do it with func collectionView(_ collectionView: UICollectionView, targetIndexPathForMoveFromItemAt originalIndexPath: IndexPath, toProposedIndexPath proposedIndexPath: IndexPath) -> IndexPath

And gives equivalent result to what I proposed.

Note: for user experience, alerting (as I explained) why he cannot move would be useful.