Problem retrieving item collection

[iao93Participant]

Hi,

Am having an issue with retrieving the child nodes of my tree-view. I’m thinking there might be something wrong with the JSON string format that I’m returning from the server.

Code:

var source =
                {
                    datatype: "json",
                    async: false,
                    datafields: [
                        { name: 'id' },
                        { name: 'parentid' },
                        { name: 'label' }

                    ],
                    items: [
                        { name: 'id' },
                        { name: 'parentid' },
                        { name: 'label' }

                    ],
                    id: 'id',
                    url: 'Charts.aspx?callback=GetTreeData'
                };

            var dataAdapter = new $.jqx.dataAdapter(source);
            dataAdapter.dataBind();
            var records = dataAdapter.getRecordsHierarchy("id", "parentid", "items");
            $('#jqxWidget').jqxTree({ source: records, width: '300px' });

This is the JSON string I’m receiving from the server:

[{“id”:”178″,”parentid”:”-1″,”label”:”Parent Item 1″,”value”:null,”icon”:null,”items”:[{“id”:”78″,”parentid”:”178″,”label”:”Child Item 1″,”value”:null,”icon”:null,”items”:null},{“id”:”79″,”parentid”:”178″,”label”:”Child Item 2″,”value”:null,”icon”:null,”items”:null} …… and so on…

My tree view is only displaying the root nodes but not any child nodes.

Kindly advise me on what I’m doing wrong.
Thank you in Advance,
AJ

[DimitarParticipant]

Hello AJ,

In the demo JSON Tree you can see what your JSON source should look like to successfully create a tree. The main difference from your approach is not having “items” but only a reference to the parent: “parentid”.

Best Regards,
Dimitar

jQWidgets team
http://www.jqwidgets.com/

[iao93Participant]

Thank you Dimitar,

Got it working now!

Warmest,
AJ

[Author]

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