window.onload = function() {
var activeProducts = ko.observableArray(),
allProducts = ko.observable(products);
function productsToValues() {
var data = [];
allProducts().forEach(function (item){
if(item.active)
data.push(item.count);
});
activeProducts(data);
}
var viewModel = {
allProducts: allProducts,
productsToValues: productsToValues,
barGaugeOptions: {
startValue: 0,
endValue: 50,
label: {
format: {
type: "fixedPoint",
precision: 0
}
},
onInitialized: productsToValues(),
values: activeProducts
}
};
ko.applyBindings(viewModel, $("#gauge-demo").get(0));
};
<!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/3.5.1/jquery.min.js"></script>
<script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/css/dx.light.css" />
<script src="https://cdn3.devexpress.com/jslib/20.2.6/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>Sampling by Goods</h3></div>
<div id="gauge-demo">
<div id="gauge" data-bind="dxBarGauge: barGaugeOptions"></div>
<div id="panel" data-bind="foreach: allProducts">
<div data-bind="dxCheckBox: {
text: $data.name,
value: $data.active,
onValueChanged: function(e) {
$data.active = e.value;
$parent.productsToValues();
}
}"></div>
</div>
</div>
</div>
</body>
</html>
#gauge-demo {
height: 440px;
width: 100%;
}
#gauge {
width: 80%;
height: 100%;
margin-top: 20px;
float: left;
}
#panel {
width: 150px;
text-align: left;
margin-top: 20px;
float: left;
}
.dx-checkbox {
margin-bottom: 10px;
display: block;
}
.long-title h3 {
font-weight: 200;
font-size: 28px;
text-align: center;
margin-bottom: 20px;
}
var products = [{
name: 'Hummers',
count: 41,
active: true
}, {
name: 'Shovers',
count: 32,
active: true
}, {
name: 'Ladders',
count: 13,
active: true
}, {
name: 'Watering cans',
count: 48,
active: true
}, {
name: 'Screwdrivers',
count: 24,
active: true
}, {
name: 'Nail pullers',
count: 8,
active: true
}, {
name: 'Drills',
count: 19,
active: true
}];