Treeview Drag & Drop with constraint

[Sang]

Hi Expert,
We are looking to use the Treeview Drag & Drop but would like to add some constraint, I am wondering if the current Kendo UI support what we're try to accomlish.

• Can we limit the child level of the parent tree?  We want to only allow 1 child per parent?
• Can we restrict user from creating the Top Level? 

We we try to accomplish is that we have a static list from the left hand side and we have 2 static parent on the right.  User must drag fromof the parent from the left.  The only condition is each of the level can only have 1 child node.
e.g.
Allow:
A
|---B
    |---C
        |---D
It cannot be where C&D is a child of B.  Can we prevent this?  TIA
A
|---B
    |---C
    |---D

Kendow UI Tree View 

[Alex Gyoshev]

Hello Sang,

You can enforce these drag&drop constraints by handling the treeview drag&drop events, dragstart / drag / drop / dragend. See the example code for the drag event for more information.

All the best,
Alex Gyoshev
the Telerik team