jqPlot Pie chart data label does not show

Question

I have such pie chart
which has data labels with values ["", 20, 1, 3, "", "", "", "", 4, 6, 6], it shows all values without any problem, except that it doesn't show value 1. How can i fix it or is it jqPlot bug?

My code is:

function getPieChart(res) {
    var data = [];
    $.each(res, function (ind, resData) {
        data.push([resData.Stage, resData.Count]);
    });
    var dataLbl = [];
    for (var i = 0; i < data.length; i++) {
        if (data[i][1] != 0) {
            dataLbl.push(data[i][1]);
        }
        else {
            dataLbl.push('');
        }
    }
    var piePlot = jQuery.jqplot('pie-chart', [data],
      {
          seriesDefaults: {
              renderer: jQuery.jqplot.PieRenderer,
              rendererOptions: {
                  showDataLabels: true,
                  dataLabels: dataLbl,
                  diameter: 250,
                  dataLabelPositionFactor: 0.5,
                  sliceMargin: 3,
                  color: '#DCDCDC'
              },
              shadow: false
          }
      }
    );
}

Answer 1

i dont know whether you could solve this yet, but the problem is the dataLabelThreshold setting

by default its value is 3, so nothing below this value will be shown

try setting its value to zero (range is 0-100) like this

rendererOptions: { 
   dataLabelThreshold: 0, 
   showDataLabels: true, 
   dataLabels: labels, 
   dataLabelFormatString: "%s" 
}