Hi

This is my Treeview with the tree_drop method..

When I debug it never enters the tree_drop method...

WHy??? Would apreciate any answer. I'm using vs2010 can that be the problem?

<liquidTreeView:Tree x:Name="officeTree"

                                     HorizontalAlignment="Stretch"

                                     EnableCheckboxes="False"

                                     EnableDragAndDrop="True"

                                     Drop="Tree_Drop"

                                     Populate="officeTree_Populate"

                                     Width="200"

                                     VerticalAlignment="Stretch"

                                     Height="400"

                                     Canvas.Top="295"

                                     Canvas.Left="200"

                                    >

                </liquidTreeView:Tree>

        private void Tree_Drop(object sender, TreeEventArgs e)

        {

            e.DropAction = Tree.DropActions.InsertAfter;

            Node nodeToMove = e.Source;

            Node parentNodeSource = e.Source.ParentNode;

            Node nodeTarget = e.Target;

            Item itmTarget = (Item)e.Target.LiquidTag;

            if(itmTarget.TypeName == "Page" || itmTarget.TypeName == "FlowContainer")

            {

                parentNodeSource.Nodes.Remove(nodeToMove);

                nodeToMove.ParentNode = null;

                nodeTarget.Nodes.Add(nodeToMove);

            }

        }

Hi,

I'm trying to replicate your problem without success.  I have taken your example XAML and code and added some child nodes.  When running and dragging and dropping a node the Drop event fires okay and my breakpoint is hit.  How are you populating your nodes?  Also its important to note that you cannot drag and drop nodes at the root level.

Thanks!

I am having the same problem. In fact the drag and drop example is not working either. I'm using VS2010 and SL4. A solution would be much appreciated.

Thanks.

Hi,

I have updated the drag and drop sample to VS2010 and have tested it and a breakpoint placed on the drop event handler is hit.

Thanks!

Hello,

Drag and drop works fine inside the tree, but if I want to do drag and drop some elements from outside the tree then drop is not triggered. Could you, please, give some examples for a drag and drop from two side-by-side trees, or from a listview to a tree?

P.S.

I know that in toolkit we have new faclilities like DragDropTreeView, or DragDropListView, yet I would like to use Liquid tree because it offers a lot more functionality.

P.P.S.

I apreciate a lot your work and I know it takes a lot of time to implement a library like this, Thank you!

Hi,

Unfortunately the Liquid Treeview only allows dragging and dropping within the same tree instance and not across multiple treeviews.  It is something we hope to implement in the next version.

Thanks!