Highcharts series data from JSON object - json

Question

I am new to JSON and mvc so here is my issue. I am currently working on graphs using highcharts. I have a controller which returns a JSON object.
public JsonResult _GetChart_TrendPublicationTypeDetailed_Data(int
yearToDisplay)
{
//Types of publications to be considered
string[] publication_types = new string[] { "article", "book", "book_section", "conference_proceedings" };
//Get the list of outputs with usp authors
var uspPubs = _uspAuthoredPublications();
//List of years for which to display the data
List<int> yearRange = _getListOfYears(yearToDisplay, yearRangeFactor_10);
//Get the data
var data = from eprint_summary in localDB.Summary
where
eprint_summary.Year > (yearToDisplay - yearRangeFactor_10)
&& eprint_summary.Year <= yearToDisplay
&& publication_types.Contains(eprint_summary.TypeCode)
&& uspPubs.Contains(eprint_summary.EprintId)
//&& eprint_summary.refereed == "TRUE" //TODO: Confirm whether we need this filter in our counts
group eprint_summary by new { eprint_summary.Year, eprint_summary.TypeDesc } into typeTrend
orderby typeTrend.Key.Year, typeTrend.Key.TypeDesc
select new
{
Year = typeTrend.Key.Year,
Type = typeTrend.Key.TypeDesc,
Count = typeTrend.Count()
};
//Extract the series data
List<object> countData = new List<object>();
foreach (var item in data.ToList().Select(y => y.Type).Distinct().OrderBy(y => y))
{
List<int> yearlyData = new List<int>();
foreach (var year in yearRange)
{
var rec = data
.Where(y => y.Type == item)
.Where(y => y.Year == year)
.Select(y => y.Count).ToArray();
yearlyData.Add(
rec == null || rec.Length == 0 ? 0 : rec[0]
);
}
countData.Add(
new
{
name = item, //Name of the series
data = yearlyData.ToArray() //Array of data
}
);
}
//Form the json object using the series data and labels
return Json(
new
{
labels = yearRange.ToArray(),
series = countData
},
JsonRequestBehavior.AllowGet
);
}
The above is my JSON in controller.
I have my view as below where I am getting the JSON object but I do not know how to append to my graph as series. How would I convert the JSON object to something that the series accepts.
var seriesData = ' ';
var test = ' ';
function ajaxCall() {
$.ajax({
type: "post",
datatype: "Json",
async: true,
url: '#Url.Action("_GetChart_TrendPublicationTypeDetailed_Data", "ResearchCharts")',
data: { yearToDisplay: '#(DateTime.Now.AddYears(-1).Year.ToString())' },
success: function (data) {
seriesData = data;
test = seriesData.series;
//bindChart(test);
//alert(JSON.stringify(seriesData));
alert(JSON.stringify(test));
},
error: function () {
alert("An error occurred.");
}
});
}
//functions call
ajaxCall();
bindChart(test);
function bindChart(test) {
var test2 = [{ "name": "Book", "data": [14, 17, 9, 10, 6, 19, 6, 8, 0, 4] }, { "name": "Book Chapter", "data": [65, 74, 44, 66, 9, 23, 36, 51, 53, 36] }, { "name": "Conference Proceedings", "data": [15, 17, 27, 30, 28, 54, 35, 43, 50, 35] }, { "name": "Journal Article", "data": [178, 162, 133, 139, 133, 191, 160, 194, 149, 169] }];
$('#chartTrendsPublicationTypeDetailed').highcharts({
chart: {
type: 'line'
},
title: {
text: 'My data'
},
xAxis: {
categories: ['2007', '2008', '2009', '2010', '2011', '2012', '2013', '2014', '2015', '2016']
},
series: test2//[{ "name": "Book", "data": [14, 17, 9, 10, 6, 19, 6, 8, 0, 4] }, { "name": "Book Chapter", "data": [65, 74, 44, 66, 9, 23, 36, 51, 53, 36] }, { "name": "Conference Proceedings", "data": [15, 17, 27, 30, 28, 54, 35, 43, 50, 35] }, { "name": "Journal Article", "data": [178, 162, 133, 139, 133, 191, 160, 194, 149, 169] }]
});
Please help, just need to somehow pass the data to highcharts.
in the picture, I have added the series manually and it works, but I need to pass in a variable which the series property accepts.

Answer 1

Old Highcharts rendering code:
$('#chartTrendsPublicationRankDetailed').highcharts({
chart: {
type: 'line'
},
title: {
text: 'My data'
},
xAxis: {
categories: labels
},
series: seriesData
});
New Highcharts rendering code. This accepts my JSON objects successfully and renders the graphs.
function bindChartItemType(seriesData, labels) {
var chart = new Highcharts.Chart({
chart: {
renderTo: 'chartTrendsPublicationTypeDetailed',
type: 'line',
height: 500,
width: 500
},
credits: {
enabled: false
},
title: {
text: 'Trend of Publications by Item Type'
},
xAxis: {
categories: labels,
title: {
text: '<b>Year</b>'
}
},
yAxis: {
min:0,
title: {
text: '<b># of publications</b>'
}
},
series: seriesData
});
}
Feel free to add anything you like in the comments.
Regards
Shafraz Buksh