[Solved] Load On Demand - Hierarchical Data, multiple data sources

[Jason]

Hi,
I'm using the treeview, highly customized and am trying to get set the databound event on the child node.  You'll understand better after seeing my code.

// in my partial view

@(Html.Telerik().TreeView()
    .Name("OperationBrowserTree")
    .ClientEvents( events => events
                .OnSelect( "OperationBrowserTree_click" ) )
    .BindTo(Model, (item, operation) =>
    {

        // bind initial data - can be omitted if there is none
            item.Text = string.Format( HTML BLOCK HERE );
        item.Value = 'O' + operation.ID.ToString();
        item.LoadOnDemand = operation.Steps.Count() > 0;
        item.Encoded = false;
        })

    .DataBinding(dataBinding => dataBinding
        .Ajax().Enabled( true ).Select( "GetOperationBrowserSteps" , "ShopFloor" )
        )
    )

// in my controller
public ActionResult GetOperationBrowserSteps( TreeViewItem node )
        {
            int operationID = Convert.ToInt32( node.Value.Substring(1) );

            using( var ctx = ErpContextFactory.Create() )
            {
                var steps = ctx.Steps
                    .IncludeRelation( "TestPlanResults/TestPlan" )
                    .Where( st => st.OperationID == operationID ).OrderBy( st => st.StepNumber ).ToArray().Select(
                    st => new TreeViewItemModel
                    {
                        Text = string.Format( HTML BLOCK HERE),

                        Value = "S" + st.ID.ToString(),
                        Enabled = true,
                        Encoded = false,
                        LoadOnDemand = st.TestPlanResults.Count > 0
                    }
                    ).ToArray();
                return new JsonResult { Data = steps };
            }
        }

this works great and gives me a tree with parent of operations and child of steps.  but now, i need to add a second child of tests on those steps.  Can I add something like :

.DataBinding(dataBinding => dataBinding
        .Ajax().Enabled( true ).Select( "GetOperationBrowserSteps" , "ShopFloor" )
        )

to the TreeViewItemModel in the controller, where I can call a second controller method?

Thanks! Jason