我发现,将数组转换为JSON
时,会有多余的方括号阻止数据被解析。
我进行一个AJAX
调用,以准备数据服务器端。 C#
处理数据并将其转换为数组以供Google图表处理。
这都是动态的,所以我不知道会有多少个数组,因此我无法对这些数组进行硬编码,并且由于性能令人震惊,因此无法循环客户端。
我认为JSON
中的JavaScript
解析器不是问题,而是我编写的C#
中的问题。
我添加了两个JSON
链接,一个是输出,另一个是预期的输出。
我的C#是:
public List<object[]> CreateJsonMultiChartData(string serial, string guid, string datefrom, string dateto)
{
var serials = _context.RawData.Where(x => x.ProjectGuid == guid).Select(x => x.SerialNumber).Distinct().ToList();
var projectUid = guid;
var from = datefrom;
var to = dateto;
//Method to return data
var g = new GetChartDataSprocs(_context, _configuration);
List<object> chartData = new List<object>();
var arrays = new List<object[]>();
foreach (var s in serials)
{
var data = g.GetChartDataFromSqlServer(s, projectUid, from, to);
foreach (var item in data)
{
var year = Convert.ToDateTime(item.ReadingDate).Year;
var month = Convert.ToDateTime(item.ReadingDate).Month;
var day = Convert.ToDateTime(item.ReadingDate).Day;
var hour = Convert.ToDateTime(item.ReadingDate).Hour;
var minute = Convert.ToDateTime(item.ReadingDate).Minute;
var second = Convert.ToDateTime(item.ReadingDate).Second;
var date = "new Date(" + year + "," + month + "," + day + "," + hour + "," + minute + "," + second + ")";
chartData.Add(
new ChartTestModel
{
ReadingDate = date,
ReadingValue = item.ReadingValue
});
};
arrays.Add(new[] { chartData });
}
return arrays;
}
我的AJAX响应是:
public JsonResult GetMultiChartData(string serial, string uid, string from, string to)
{
var dateFrom = Convert.ToDateTime(from).ToString("yyyy-MM-dd HH:mm:ss");
var dateTo = Convert.ToDateTime(to).AddMinutes(1).ToString("yyyy-MM-dd HH:mm:ss");
var g = new GetChartData(_context, _configuration);
var items = g.CreateJsonMultiChartData(serial, uid, dateFrom, dateTo);
//var dsItems = JsonConvert.DeserializeObject(items);
// return items;
return Json(JsonConvert.SerializeObject(items, Formatting.Indented));
}
我的AJAX呼叫是:
$.ajax({
url: 'ProjectCharts/GetMultiChartData',
datatype: 'json',
type: 'get',
async: false,
data: { section: section, uid: uid, from: from, to: to },
contentType: 'application/json; charset=utf-8',
success: function (d) {
parsedData = $.parseJSON(d);
var data = new google.visualization.arrayToDataTable([
{ label: 'Date', id: 'ReadingDate', type: 'date' }, // Use object notation to explicitly specify the data type.
{ label: 'Data', id: 'ReadingValue', type: 'number' }, [parsedData]]);
var chart = new google.visualization.LineChart(document.getElementById('chart'));
var options = multiLineChartOptions();
chart.draw(data, options);
},
error: function () {
alert("Error");
}
});
输出在:
预期输出为: Expected JSON Output