Initializing RadTreeNodes to expanded

4 posts, 0 answers
  1. Kevin Meyer
    Kevin Meyer avatar
    36 posts
    Member since:
    Dec 2007

    Posted 29 Apr 2008 Link to this post

    What's the recommended solution for expanding a tree view when bound to an object data source.  The created nodes are collapsed by default and I don't see a way to change the default behavior, nor do I see any events indicating when a node is added
  2. Kiril
    Kiril avatar
    158 posts

    Posted 01 May 2008 Link to this post

    Hi Kevin Meyer,

    Thank you for writing.

    Currently, there's no way to achieve this behavior. However, our plans for Q2 2008 include making the RadTreeNodeCollection observable, so you'll be able to expand a node just after it is added. For the time being, you can traverse the tree view structure after it has been bound and expand the desired nodes.

    If you have any further questions, please contact us.

    Kind regards,
    the Telerik team

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  4. MNP
    MNP avatar
    40 posts
    Member since:
    Apr 2008

    Posted 13 Nov 2009 Link to this post


    Has there been any change to this? I'm currently databinding and it seems that I can't expand the tree to say the 2nd level. The only thing that seems to work is the ExpandAll.


  5. Victor
    Victor avatar
    1349 posts

    Posted 18 Nov 2009 Link to this post

    Hi Matt,

    Thank you for the question.

    If you are looking for a way to expand nodes on a particular level you can use the commands that RadTreeView provides. You should use the NodeExpandCollapseCommand in particular.
    I am afraid that we have not yet added the ability to react on a node being added directly to the Nodes collection.

    Please write again if you need further assistance.

    Best wishes,
    the Telerik team

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