Update Bar Gauge Data at Runtime
Documentation
This demo illustrates how to bind an array of values to the BarGauge. Since an array can not be bound to a field as a regular value, it is bound as a computed one.
jQuery
AngularJS
Angular
ASP.NET MVC
ASP.NET Core
$(function(){
function getBasicColors(value) {
var code = Number("0x" + value.slice(1));
$(".color-box").css("background-color", value);
return [
(code >> 16) & 0xff,
(code >> 8) & 0xff,
code & 0xff
];
}
var gauge = $("#gauge").dxBarGauge({
startValue: 0,
endValue: 255,
palette: ["#ff0000", "#00ff00", "#0000ff"],
label: {
visible: false
},
values: getBasicColors(colors[0].code)
}).dxBarGauge("instance");
$("#select-color").dxSelectBox({
width: 150,
dataSource: colors,
displayExpr: 'name',
value: colors[0],
onSelectionChanged: function(e) {
gauge.option("values", getBasicColors(e.selectedItem.code));
}
});
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/18.1.6/css/dx.common.css" />
<link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/18.1.6/css/dx.light.css" />
<script src="https://cdn3.devexpress.com/jslib/18.1.6/js/dx.all.js"></script>
<script src="data.js"></script>
<link rel="stylesheet" type ="text/css" href ="styles.css" />
<script src="index.js"></script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div class="long-title"><h3>Colors Representation via Basic Colors</h3></div>
<div id="gauge-demo">
<div id="gauge"></div>
<div class="action-container">
<div id="select-color"></div>
<div class="color-box"></div>
</div>
</div>
</div>
</body>
</html>
#gauge-demo {
height: 440px;
width: 100%;
}
#gauge {
width: 80%;
height: 100%;
margin-top: 20px;
float: left;
}
.action-container {
width: 20%;
text-align: left;
margin-top: 20px;
float: left;
}
.color-box {
width: 40px;
height: 40px;
margin-top: 20px;
}
.long-title h3 {
font-weight: 200;
font-size: 28px;
text-align: center;
margin-bottom: 20px;
}
var colors = [{
name: 'Amaranth',
code: '#e52b50'
}, {
name: 'Amethyst',
code: '#9966cc'
}, {
name: 'Ash grey',
code: '#b2beb5'
}, {
name: 'Barn red',
code: '#7c0a02'
}, {
name: 'Imperial',
code: '#602f6b'
}, {
name: 'Lemon lime',
code: '#e3ff00'
}, {
name: 'Mountain Meadow',
code: '#30ba8f'
}, {
name: 'Outer Space',
code: '#414a4c'
}, {
name: 'Persian plum',
code: '#701c1c'
}, {
name: 'Seal brown',
code: '#321414'
}, {
name: 'Twilight lavender',
code: '#8a496b'
}, {
name: 'Umber',
code: '#635147'
}];