Problem dragging from right tree to left

3 posts, 0 answers
  1. Jonathan
    Jonathan avatar
    15 posts
    Member since:
    Sep 2007

    Posted 09 Feb 2009 Link to this post

    I have two treeviews on a page within RadAjaxPanels (tried this with basic divs to the same result) and have found something a little odd that I could do with a fix for. If I drag an object from the right tree as soon as I enter the left panel I get an error on line 1911, char 1, Error '_145' is null or not an object. After doing some more research I discovered that this only happens when I drag something out of the left edge of RadAjaxPanel2 and into the right edge of RadAjaxPanel1.

    e.g. if I drag out of the bottom of RadAjaxPanel2 and onto RadAjaxPanel1 from the right it's fine, if I drag out of the left of RadAjaxPanel2 and into the top edge of RadAjaxPanel1 again it's fine, but if I drag from the left edge of RadAjaxPanel2 onto the right edge of RadAjaxPanel1 I get the error (needs IE to be setup to show all Javascript errors for the error to be obvious).

    As a temporary fix I can swap the trees round so that I am dragging from the left tree to the right tree, but this isn't an idea solution, has anyone encountered this before or got any ideas how I can solve this?



        <asp:UpdatePanel ID="UpdatePanel1" runat="server">  
                <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" BackColor="Aqua" CssClass="floatLeft">  
                    <telerik:RadTreeView ID="RadTreeGroups"  AllowNodeEditing="true" EnableDragAndDrop="true" EnableDragAndDropBetweenNodes="true" OnNodeDrop="RadTreeGroups_NodeDrop" OnNodeEdit="RadTreeGroups_NodeEdit" OnClientContextMenuItemClicked="onClientContextMenuItemClicked" OnContextMenuItemClick="RadTreeGroups_ContextMenuItemClick" runat="server">  
                <telerik:RadAjaxPanel ID="RadAjaxPanel2" runat="server" BackColor="Gray" CssClass="floatRight">  
                    <telerik:RadTreeView ID="RadTreeResources"  runat="server" EnableDragAndDrop="true" OnNodeDrop="RadTreeLessons_NodeDrop">  

  2. Fredrik
    Fredrik avatar
    57 posts
    Member since:
    Oct 2007

    Posted 11 Mar 2009 Link to this post

    Did you solve this problem? I have more or less exactly the same problem.

  3. Yana
    Yana avatar
    5037 posts

    Posted 12 Mar 2009 Link to this post

    Hi there,

    I wasn't able to reproduce this issue, could you please send us a working example where we can observe it? Also I don't understand why you're using RadAjaxPanel inside UpdatePanel.

    Best Regards,
    the Telerik team

    Instantly find answers to your questions on the new Telerik Support Portal.
    Check out the tips for optimizing your support resource searches.
Back to Top