jQuery UI Widgets Forums ASP .NET MVC Update Chart from Controller

This topic contains 1 reply, has 2 voices, and was last updated by  Hristo 2 years, 9 months ago.

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  • Update Chart from Controller #100296



    I have a view with a chart and a DropDown control; the first time, the controller send a model with a ChartItem data list to the chart;
    every time I change the selected value from the dropdown control, I want to use the controller to query some new data for the viewmodel.
    now, I struggle to update the chart.
    I tried to use the $(‘#chart’).jqxChart(‘refresh’); but nothing changes.
    The only way I found is kind of heavy
    I had to create a new source in the Javascript to make it work.

    ` var source = {
    datatype: “json”,
    datafields: [
    { name: ‘Day’ },
    { name: ‘SmsCount’ }
    async: false,
    record: ‘Array’,
    url: ‘@Url.Action(“GetSmsInfoStats”, “Sms”)’+”?monthOffset=”+value

    it’s working but it’s kind of stupid because the viewmodel contains already the new data and been forced to query the data in another function is sort kind of duplicate way-

    Can you help me to simplify the concept ?
    thanks in advance

    Update Chart from Controller #100316


    Hello vince,

    You could try to update only the URL of the source – source.url = newurl
    After that just update the DataAdapter with dataAdapter.dataBind() method and set it into the source of the Chart:

    source.url = newurl;
    $('#jqxChart').jqxChart({ source: dataAdapter });

    Also, I would like to suggest you look at this article:

    Best Regards,
    Hristo Hristov

    jQWidgets team

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