Hi All!

I use igniteui igTreeGrid component (enableRemoteLoadOnDemand: true) with angular2.

import { Component } from '@angular/core';
import { RoutingComponent } from '../navigation/route.decorator';

declare var $: any;

const dataUrl = '/nodes.json';

@Component({          
    templateUrl: `<ig-tree-grid [(widgetId)]='id' [options]="tgridOptions"></ig-tree-grid>`
})
@RoutingComponent()
export class UsersTreeView {

    private id: string = 'tgrid';
    private tgridOptions: any;

    constructor() {
        
        this.tgridOptions = {                        
            autoCommit: true,            
            autoGenerateColumns: false,
            dataSource: [],
            dataSourceUrl: dataUrl,                        
            enableRemoteLoadOnDemand: true,
            features: [
                { name: 'Resizing' },
                //{ name: 'RowSelectors', rowSelectorNumberingMode: 'sequential' },
                //{ name: 'Selection' }
            ],
            initialExpandDepth: 0,
            primaryKey: "id",
            childDataKey: "objects",
            renderExpansionIndicatorColumn: true,
            height: "400px",
            width: "100%",
            columns: [
                { key: "id", headerText: "id" },
                { key: "name", headerText: "name" },
                { key: "description", headerText: "description" }                
            ]
        };
    }
}

And here's nodes.json structure

[
  {
    "id": 0,
    "name": "Project Plan",
    "description": "6/2/2014",
    "objects": []
  },
  {
    "id": 1,
    "name": "Project Plan",
    "description": "6/2/2014",
    "objects": [
      {
        "id": 3,
        "objects": [ { "id":  4} ],
        "name": "3"
      }
    ]
  }
]

1. First node ({
    "id": 0,
    "name": "Project Plan",
    "description": "6/2/2014",
    "objects": []
  })

is not expanding instead of havingobjects(this is childkey) field array.

2. If treegrid options doesn't have dataSource (I'm using RemoteLoadOnDemand mode) property component gets error -Cannot read property 'length' of undefined

What settings I have lost to include into igTreeGrid to resolve such behaviour?

Thanks.