Highlight Clicked Line Chart Segments
Environment
| Product Version | 2018.1 221 |
| Product | Progress® Kendo UI® Chart for jQuery |
Description
How can I highlight the clicked line in the Kendo UI Line Chart?
Solution
Handle the seriesClick event—in the event handler, add a custom style class to the desired HTML elements.
<style>
.myClass {
stroke: #08ffff;
stroke-width: 4;
}
</style>
<div id="example">
<div class="demo-section k-content wide">
<div id="chart" style="background: center no-repeat url('../content/shared/styles/world-map.png');"></div>
</div>
<script>
function createChart() {
$("#chart").kendoChart({
title: {
text: "Gross domestic product growth \n /GDP annual %/"
},
legend: {
position: "bottom"
},
chartArea: {
background: ""
},
seriesDefaults: {
type: "line",
style: "smooth"
},
series: [{
name: "India",
data: [3.907, 7.943, 7.848, 9.284, 9.263, 9.801, 3.890, 8.238, 9.552, 6.855]
}, {
name: "World",
data: [1.988, 2.733, 3.994, 3.464, 4.001, 3.939, 1.333, -2.245, 4.339, 2.727]
}, {
name: "Russian Federation",
data: [4.743, 7.295, 7.175, 6.376, 8.153, 8.535, 5.247, -7.832, 4.3, 4.3]
}, {
name: "Haiti",
data: [-0.253, 0.362, -3.519, 1.799, 2.252, 3.343, 0.843, 2.877, -5.416, 5.590]
}],
valueAxis: {
labels: {
format: "{0}%"
},
line: {
visible: false
},
axisCrossingValue: -10
},
categoryAxis: {
categories: [2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011],
majorGridLines: {
visible: false
},
labels: {
rotation: "auto"
}
},
tooltip: {
visible: true,
format: "{0}%",
template: "#= series.name #: #= value #"
},
seriesClick: function(e) {
$(".myClass").removeClass("myClass");
var color = $(e.element).attr("fill");
var path = $(e.element).siblings().find("path[stroke='" + color + "']");
path.addClass("myClass");
}
});
}
$(document).ready(createChart);
$(document).bind("kendo:skinChange", createChart);
</script>
</div>