Newbie Question

[WigginstParticipant]

I’m trying to create a Listbox using a DataAdapter as my source. I have it working, however, the page is making two ajax calls. The first call is when I set my DataAdapter and the second call is when I add my source to my listBox. The problem is that I’m using displayMember and valueMember. I’ve tried all sorts of different methods to parse the JSON into a javascript array and to use that as my source, but I’ve been unsuccessful. Could someone please point me in the right direction.

Here’s my code.

var sourceSchool = { datatype: "json", datafields: [ { name: 'ProfileSchools', type: 'string' }, { name: 'numberSchools', type: 'string' } ], url: 'profile_data.asp', data: { action: 'School' } };
var adapterSchool = new $.jqx.dataAdapter(sourceSchool, { async: false, autoBind: true, loadError: function (xhr, status, error) { alert('Error loading "' + sourceSchool.url + '" : ' + error); }});
$("#allSchoolsBox").jqxListBox({ source: adapterSchool, selectedIndex: 0, displayMember: "ProfileSchools", valueMember: "numberSchools", filterable: true, theme: 'berkeley', allowDrag: false, allowDrop: false, width: '80%'});

Thanks

[ChristopherParticipant]

Hi Wigginst,

The page is making two Ajax calls because you are using the autoBind: true property on the dataAdapter and then you are setting the dataAdapter again to the jqxListBox. You should remove the autobind from the jqxDataAdapter because it’s unnecessary. Please provide some data so we can test you code and see if there’s a problem. It shouldn’t be a problem to load the data using displayMember and valueMember from a JSON object. It doesn’t have to be a JavaScript array to do that.

Best Regards,
Christopher

jQWidgets Team
http://www.jqwidgets.com

[WigginstParticipant]

Christopher,

Thanks a million. Worked great.

Wigginst

[Author]

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