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Create Dynamic Plot Bands in Charts

Environment

Product Progress Kendo UI Chart for jQuery
Operating System Windows 10 64bit
Visual Studio version Visual Studio 2017
Preferred Language JavaScript

Description

How can I highlight data in a Kendo UI Chart by using dynamic plot bands?

Solution

The following example demonstrates how to achieve this behavior.

   <div id="chart"></div>
   <button>Change plot band</button>

    <script>
      $("#chart").kendoChart({
        categoryAxis: {
          type: "date",
          categories: [new Date("2014/01/01"), new Date("2014/01/02"), new Date("2014/01/31")],
          plotBands: [{
            from: new Date("2014/01/02"),
            to: new Date("2014/01/02"),
            color: "red"
          }]
        }
      });

      function showPlotBand(element, band) {
        var plotBands = [ band ];
        var axisNames = ["valueAxis", "xAxis", "categoryAxis"];
        var options = {};

        for (var i = 0; i < axisNames.length; i++) {
          options[axisNames[i]] = { plotBands: plotBands };
        }

        var chart = $(element).data("kendoChart");
        chart.setOptions(options);
      }

      $("button").click(function(){
        // shows a random plot band
        var start = new Date(2014, 0, 1 + Math.floor(Math.random() * 30));
        var end = new Date(start.getTime() + 1000 * 3600 * 24); // 24 hours after start

        showPlotBand("#chart", {
            from: start,
            to: end,
            color: "green"
        });
      });
    </script>

See Also

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