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DHTMLXTree ot of things to take care in drag n drop there can be a possibility that a node can have more than one parent. While performaing drag n drop i have to consider the following cases.... 1. A node cannot be dropped into itself (since a node can have more than one parent this case is possible at different level of tree) 2. A node cannot be dropped into any of its child node ( this case occurs bcos a node can have more than one parent at diffrent levels), 3. When a node A is dropped on a node B, the childs of node A shud not be there at parent levels of node A need help in handling these cases thanks in advance Answer posted by Alex (support) on Aug 27, 2009 08:23 points 1 and 2 are correct and can not be changed. And parent is always dragged with its child. If you want to change something in drag-n-drop logic, you can deny this operation using onDrag event and control tree nodes as you need (you can use insertNewItem and deleteItem methods): tree.attachEvent("onDrag",function(sourceId,targetId){ /*some other code here*/ return false }) |
