using System.Web.Mvc;

namespace WebApiExplorer.Controllers
{
    public partial class Wijmo5FlexChartController : Controller
    {
        public ActionResult TrendLine()
        {
            ViewBag.Options = _flexChartModel;
            return View();
        }
    }
}

@using WebApiExplorer.Models
@{
    ImageExportOptions optionsModel = ViewBag.Options;
    ViewBag.DemoSettings = true;
}

<div id="@(optionsModel.ControlId)"></div>
<select id="fitTypeMenu">
    <option value="0" selected="selected">Linear</option>
    <option value="1">Exponential</option>
    <option value="2">Logarithmic</option>
    <option value="3">Power</option>
    <option value="4">Fourier</option>
    <option value="5">Polynomial</option>
    <option value="6">MinX</option>
    <option value="7">MinY</option>
    <option value="8">MaxX</option>
    <option value="9">MaxY</option>
    <option value="10">AverageX</option>
    <option value="11">AverageY</option>
</select>

@section Settings{
    @Html.Partial("_ImageExportOptions", optionsModel)
}

<script>
    var trendLineChart = new wijmo.chart.FlexChart('#@(optionsModel.ControlId)'),
        fitTypeMenu = new wijmo.input.Menu('#fitTypeMenu'),
        trendLine;

    // initialize FlexChart's properties
    trendLineChart.initialize({
        itemsSource: appData,
        bindingX: 'x',
        series: [{
            name: 'Origin',
            binding: 'y',
            chartType: wijmo.chart.ChartType.Scatter
        }]
    });

    //create TrendLine
    trendLine = new wijmo.chart.analytics.TrendLine();
    trendLine.name = 'Trend Line';
    trendLine.binding = 'y';
    trendLine.sampleCount = 100;
    trendLineChart.series.push(trendLine);

    // update the menus' headers
    updateMenuHeader();

    fitTypeMenu.selectedIndexChanged.addHandler(function () {
        if (fitTypeMenu.selectedValue) {
            // update TrendLine's fitType
            trendLine.fitType = parseInt(fitTypeMenu.selectedValue);

            // update menu header
            updateMenuHeader();
        }
    });

    // helper function for Menu headers
    function updateMenuHeader() {
        fitTypeMenu.header = '<b>@(Resources.Wijmo5FlexChart.TrendLine_FitType)</b>: ' + fitTypeMenu.text;
    }
</script>

@section Description{
    @Html.Raw(Resources.Wijmo5FlexChart.TrendLine_Text0)
}