Drag&Drop CollectionView items

Hello everyone,

Please can you help me with any idea how to drag and drop items of a UICollectionView?

TableViewDataSource has a method like this: public override void MoveRow (UITableView tableView, NSIndexPath sourceIndexPath, NSIndexPath destinationIndexPath){}

I try to override a similar method like "MoveItem" inside DataSource of CollectionView, but doesn't exists.

Thanks in advance