OnClick not fired with Entity/LINQ DataSource

3 posts, 0 answers
  1. Lone
    Lone avatar
    6 posts
    Member since:
    Nov 2009

    Posted 23 Feb 2011 Link to this post

    Hey Telerik

    I have big problems using my Entity datasource with my TreeView.
    Everything is shown just fine, but can't get OnNodeClick event to fire.

    Please advise !!

    Thanks
    Jan

    <telerik:RadTreeView runat="Server" ID="BookGroupTreeView" DataFieldID="Hierarchy_id"
        DataFieldParentID="Parent_Hierarchy_id" DataTextField="Name" DataValueField="Hierarchy_id"
        Skin="Vista" EnableTheming="True" RegisterWithScriptManager="true" OnNodeClick="BookGroupTreeView_NodeClick">
    </telerik:RadTreeView>

    protected void Page_Load(object sender, EventArgs e)
     {
         List<DB.Hierarchy> bookHierarchy = new List<DB.Hierarchy>();
         bookHierarchy = DB.HierarchyService.HierarchyFullListFromParentPath("Root");
     
         BookGroupTreeView.DataSource = bookHierarchy;
         BookGroupTreeView.DataBind();
         BookGroupTreeView.ExpandAllNodes();
     }
  2.
  3. Kate
    Admin
    Kate avatar
    1898 posts

    Posted 25 Feb 2011 Link to this post

    Hi Jan Hjørdie,

    Here is a sample page with two treeview controls - one linked to an entity datasource, the other one linked to a linq datasource. I attached an event handler on both trees and it behaves as it should - the event is fired.

    Best wishes,
    Kate
    the Telerik team
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  5. Lone
    Lone avatar
    6 posts
    Member since:
    Nov 2009

    Posted 25 Feb 2011 Link to this post

    Hey Kate
    Thanks for your example.
    My data is not presentet the way you suggest. I have my data layer in a seperate project. My DB project, where I ex. have a Hierachy Service, that return a List<Hierachy>.

    So what should I do then ? Do I need the LinqDataSource ? I just thought setting the treeview datasource to bookHierachy was enough ?
    My treeview is rendered just fine, it's just my OnNodeClick event that don't fire ?

     <asp:LinqDataSource ID="LinqDataSource1" runat="server" EntityTypeName="" ContextTypeName="DataClassesDataContext"

               TableName="Links">

     </asp:LinqDataSource>


    List<DB.Hierarchy> bookHierarchy = new List<DB.Hierarchy>();

    bookHierarchy = DB.HierarchyService.HierarchyFullListFromParentPath("Emner");

     
    Thanks
    Jan
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