Hello Maria,

Sorry for causing confusion. I am creating a TreeView in WPF Grid.

I need to apply Drag-Drop and Edit features on all TreeViewItems. I should be able to Drag a child Item from one Parent and drop it into any of parent's sibling items.

I have 3 levels of items in my TreeView. And Drag-drop should be allowed only on same level.

Thanks,

Priya

Hello Priya,

I have created a sample project that shows how the Drag and Drop framework can be used to implement this functionality in the TreeView control. This logic is implemented for the root level of the tree and you could use this as basis to implement the functionality for the other levels too. When drag and drop channels are set the drag and drop actions are only available for elements within the same channel. In this case these are the items within the same level in the hierarchy. When the item is drop the source collection is modified to rearrange the items. I hope this is helpful for you. Please feel free to update the case if you have any other questions.

Sorry for picking up the thread. We are looking similar functionality with these two additional features in the sample project given in this thread.

1. If the tree nodes span more than one page, when I drag to move up or down, I need the vertical scroll bar to move up or move down automatically

2. When I drop a node on another node, if that node is collapsed, I want that node automatically expand. Because my tree structure to too deep with many parents.

Please let me know if you can provide the sample with these feature.

Thanks in Advance.

Thank you for your feedback Priya. I am glad that this approach helped you.

Hi Maria,

Drag-drop is working fine now.

Thank you for your help.

Regards,

Priya

Hello Priya,

I am just checking your progress on the issue.

If you have any other questions on the matter, please feel free to ask.

Hello Priya, 

The TreeView can be displayed in a XamDataGrid’s cell by modifying the default template of the cell for the field where you want the tree to be. I have created another sample for you that shows this approach. I hope it will be helpful for you.