javascript – 从highcharts.js中的控制器获取json数据
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内容图文
我正在尝试制作一个高清图,它应该显示每种类型的预留房间数量：
这是我的GetHighChart方法的控制器：
public JsonResult GetHighChart()
{
var viewModel = Reservation.RoomTypeByDate(5);
var result = new JsonResult { Data = viewModel};
return result;
}
Reservetion.RoomTypeByDate看起来像这样：
public static List<dynamic> RoomTypeByDate(int? LunaDorita)
{
var result=DBContext.Current.ExecuteProcedure("RoomtypeCountbydate",
new QueryParam<int>("@p_ID", LunaDorita.Value)).Map();
return result;
这是我的存储过程：
SELECT Room_Type, COUNT(*) AS NumarRezervari
FROM dbo.Reservation re
JOIN dbo.Room ro ON ro.RoomID = re.Room_ID
JOIN dbo.Room_Type rt ON rt.RoomType_ID = ro.Room_Type_ID
WHERE MONTH(re.Data_Check_in)=@p_ID
GROUP BY Room_Type
我的Json结果是：
[[{"Key":"Room_Type","Value":"Double"},{"Key":"NumarRezervari","Value":2}], [{"Key":"Room_Type","Value":"LUXURY"},{"Key":"NumarRezervari","Value":1}],[{"Key":"Room_Type","Value":"Triple"},{"Key":"NumarRezervari","Value":1}]]
我应该如何修改这个javascript文件,以便代替下面的系列从myReports controler获取我的GetHighChart方法的数据.所以我想让我的RoomType为Double而不是数据来拥有我自己的数据[ 2,5 ….]
$(function () {
var chart;
$(document).ready(function () {
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'line'
},
title: {
text: 'Monthly Average Temperature'
},
subtitle: {
text: 'Source: WorldClimate.com'
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
yAxis: {
title: {
text: 'Temperature (°C)'
}
},
tooltip: {
enabled: false,
formatter: function () {
return '<b>' + this.series.name + '</b><br/>' +
this.x + ': ' + this.y + '°C';
}
},
plotOptions: {
line: {
dataLabels: {
enabled: true
},
enableMouseTracking: false
}
},
series: [{
name: 'Tokyo',
data: [7.0, 6.9, 9.5, 14.5, 18.4, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
}, {
name: 'London',
data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
}]
});
});
});
解决方法:
如果您使用的是Visual Studio,则可以使用DotNet.Highcharts更轻松地构建高图对象.通过这样做,您可以直接使用Series和Data对象,然后将它们传递给Highcharts.它需要创建JavaScript.下面是我如何在MVC 3中创建图表的示例.如您所见,我正在使用LINQ to SQL来收集图表所需的数据.我正在创建一个系列列表来保存数据.这是动态完成的,因此我可以根据需要为图表添加尽可能多的系列,而无需事先知道将有多少.然后我创建图表并将系列列表传递给它.
public ActionResult CombinerBarToday(DateTime? utcStartingDate = null,
DateTime? utcEndingDate = null)
{
//GET THE GENERATED POWER READINGS FOR THE SPECIFIED DATETIME
var firstQ = from s in db.PowerCombinerHistorys
join u in db.PowerCombiners on s.combiner_id equals u.id
where s.recordTime >= utcStartingDate
where s.recordTime <= utcEndingDate
select new
{
CombinerID = u.name,
Current = s.current,
RecordTime = s.recordTime,
Voltage = s.voltage,
Watts = (s.current * s.voltage)
};
//GET A LIST OF THE COMBINERS CONTAINED IN THE QUERY
var secondQ = (from s in firstQ
select new
{
Combiner = s.CombinerID
}).Distinct();
/* THIS LIST OF SERIES WILL BE USED TO DYNAMICALLY ADD AS MANY SERIES
* TO THE HIGHCHARTS AS NEEDED WITHOUT HAVING TO CREATE EACH SERIES INDIVIUALY */
List<Series> allSeries = new List<Series>();
TimeZoneInfo easternZone = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");
//LOOP THROUGH EACH COMBINER AND CREATE SERIES
foreach (var distinctCombiner in secondQ)
{
var combinerDetail = from s in db2.PowerCombinerHistorys
join u in db2.PowerCombiners on s.combiner_id equals u.id
where u.name == distinctCombiner.Combiner
where s.recordTime >= utcStartingDate
where s.recordTime <= utcEndingDate
select new
{
CombinerID = u.name,
Current = s.current,
RecordTime = s.recordTime,
Voltage = s.voltage,
Watts = (s.current * s.voltage) / 1000d
};
var results = new List<object[]>();
foreach (var detailCombiner in combinerDetail)
{
results.Add(new object[] {
TimeZoneInfo.ConvertTimeFromUtc(detailCombiner.RecordTime, easternZone),
detailCombiner.Watts });
}
allSeries.Add(new Series
{
Name = distinctCombiner.Combiner,
//Data = new Data(myData)
Data = new Data(results.ToArray())
});
}
Highcharts chart = new Highcharts("chart")
.InitChart(new Chart { DefaultSeriesType = ChartTypes.Spline, ZoomType = ZoomTypes.X})
.SetTitle(new Title { Text = "Combiner History" })
.SetSubtitle(new Subtitle { Text = "Click and drag in the plot area to zoom in" })
.SetOptions(new GlobalOptions { Global = new Global { UseUTC = false } })
.SetPlotOptions(new PlotOptions
{
Spline = new PlotOptionsSpline
{
LineWidth = 2,
States = new PlotOptionsSplineStates { Hover = new PlotOptionsSplineStatesHover { LineWidth = 3 } },
Marker = new PlotOptionsSplineMarker
{
Enabled = false,
States = new PlotOptionsSplineMarkerStates
{
Hover = new PlotOptionsSplineMarkerStatesHover
{
Enabled = true,
Radius = 5,
LineWidth = 1
}
}
}
}
})
.SetXAxis(new XAxis
{
Type = AxisTypes.Datetime,
Labels = new XAxisLabels
{
Rotation = -45,
Align = HorizontalAligns.Right,
Style = "font: 'normal 10px Verdana, sans-serif'"
},
Title = new XAxisTitle { Text = "Time(Hour)" },
})
.SetYAxis(new YAxis
{
Title = new YAxisTitle { Text = "Kilowatt" }
})
.SetSeries(allSeries.Select(s => new Series {Name = s.Name, Data = s.Data }).ToArray());
return PartialView(chart);
}
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