I am trying to get igTreeGrid working with LoadOnDemand, and it isn't working very good at all.  I use TreeHierarchicalDataSource because I want to use customEncodeUrlFunc to add some attributes, but my customEncodeUrlFunc never gets called.  The ajax call will get made when the grid is initially loaded, but after it loads the top level clicking the + just makes it starts spinning with no ajax call actually made.  I've tried all kinds of things to make it work, but nothing does.  Below is the current state of my code.

HTML:

          <table id="treeItems">table>

BLOCKED SCRIPT

          var dsOptions = {

                primaryKey: "key",

                dataSource: getDataUrl,

                type: "remoteUrl",

                treeDS: {

                    dataSourceUrl: getDataUrl,

                    childDataKey: "items",

                    enableRemoteLoadOnDemand: true,

                    customEncodeUrlFunc: function (data, expand) {

                        return getDataUrl + "?targetDate=" + encodeURIComponent($("#targetDate").val());

                    }

                }

            };

            var ds = new $.ig.TreeHierarchicalDataSource(dsOptions);

            var options = {

                width: "100%",

                //primaryKey: "key",

                childDataKey: "items",

                autoGenerateColumns: false,

                dataSource: ds,

                enableRemoteLoadOnDemand: true,

                //dataSourceType: "json",

                //dataSourceUrl: myParam.getDataUrl,

                //initialExpandDepth: 1,

                columns: [

                    { headerText: "Column 1", key: "column1", dataType: "string" },

                    { headerText: "Column 2", key: "column2", dataType: "number", width: "*", template: "$${column2}" },

                    { headerText: "Column 3", key: "column3", dataType: "number", width: "*", template: "$${column3}" },

                    { headerText: "Column 4", key: "column4", dataType: "number", width: "*", template: "$${column4}" },

                ],

            };

            $("#treeItems").igTreeGrid(options);