I am using igTree with LoadOnDemand is set to true.

I have a WCF REST Service which giving me data to populate in igTree.

Please find the sample code..

$.ajax(

            {

                type: "GET",

                url: "AssessmentProcWCFService.svc/GetAllEntities",

               contentType: "application/json; charset=utf-8",

                dataType: 'json',

                data: '{}',

                cache: false,

                success: OnGetAllEntitiesSuccess,

                error: OnGetAllEntitiesFailure

            });

==================================================

function OnGetAllEntitiesSuccess(categoryList) {

   $("#APTreeView").igTree({

                    animationDuration: 0,

                    dataSourceType: 'json',

                    dataSource: categoryList.d,

                    initialExpandDepth: false,

                    loadOnDemand: true,

                    dataSourceUrl: "AssessmentProcWCFService.svc/GetAllCategories?EntityID=primaryKey:id",

                    bindings: {

                        textKey: 'text',

                        valueKey: 'id',

                        primaryKey: 'id',

                        expanded: 'expanded',

                        childDataProperty: 'children'

                    }

                });

            }

=========================================================

Questions:-

1.  How could I send the selected node ID to the Service when any node of the tree is expanding?

The way I am sending in the above example it is not working when I am retrieving it in the service “public List<APEntityTree> GetAllCategories()” like

“string entityID = HttpContext.Current.Request.QueryString["EntityID"];”

I am getting entity id as null.

2.  How the tree get rendered when any node get expanded if LoadOnDemand is true?

Please help me on this I have spend lot of time in it.