Grouped Items
Documentation
The SelectBox widget allows you to group items within the drop-down list. This demo illustrates how to enable grouping and how to define a custom template for groups.
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window.onload = function() {
var products = new DevExpress.data.DataSource({
store: productsData,
key: "id",
group: "Category"
});
var viewModel = {
selectBoxOptions: {
dataSource: products,
valueExpr: "ID",
value: productsData[16].ID,
grouped: true,
displayExpr: "Name"
},
searchSelectBoxOptions: {
dataSource: products,
valueExpr: "ID",
value: productsData[17].ID,
searchEnabled: true,
grouped: true,
displayExpr: "Name"
},
templateSelectBoxOptions: {
dataSource: products,
valueExpr: "ID",
value: productsData[18].ID,
grouped: true,
groupTemplate: "group",
displayExpr: "Name"
}
};
ko.applyBindings(viewModel, document.getElementById("select-box-demo"));
};
<!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>
<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/18.2.7/css/dx.common.css" />
<link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/18.2.7/css/dx.light.css" />
<link rel="dx-theme" data-theme="android5.light" href="https://cdn3.devexpress.com/jslib/18.2.7/css/dx.android5.light.css" />
<link rel="dx-theme" data-theme="ios7.default" href="https://cdn3.devexpress.com/jslib/18.2.7/css/dx.ios7.default.css" />
<link rel="dx-theme" data-theme="win10.black" href="https://cdn3.devexpress.com/jslib/18.2.7/css/dx.win10.black.css" />
<link rel="dx-theme" data-theme="win10.white" href="https://cdn3.devexpress.com/jslib/18.2.7/css/dx.win10.white.css" />
<script src="https://cdn3.devexpress.com/jslib/18.2.7/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 id="select-box-demo">
<div class="dx-fieldset">
<div class="dx-field">
<div class="dx-field-label">Grouped items</div>
<div class="dx-field-value">
<div data-bind="dxSelectBox: selectBoxOptions"></div>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Grouped items with search enabled</div>
<div class="dx-field-value">
<div data-bind="dxSelectBox: searchSelectBoxOptions"></div>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Grouped items with a custom group template</div>
<div class="dx-field-value">
<div data-bind="dxSelectBox: templateSelectBoxOptions">
<div data-options="dxTemplate: {name: 'group'}">
<div class='custom-icon'>
<span class='dx-icon-box icon'></span>
<span data-bind="text: key"></span>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
.custom-icon .icon {
font-size: 17px;
color: #f05b41;
margin-right: 2px;
}
var productsData = [{
"ID": 1,
"Name": "HD Video Player",
"Category": "Video Players"
}, {
"ID": 2,
"Name": "SuperHD Player",
"Category": "Video Players"
}, {
"ID": 3,
"Name": "SuperPlasma 50",
"Category": "Televisions"
}, {
"ID": 4,
"Name": "SuperLED 50",
"Category": "Televisions"
}, {
"ID": 5,
"Name": "SuperLED 42",
"Category": "Televisions"
}, {
"ID": 6,
"Name": "SuperLCD 55",
"Category": "Televisions"
}, {
"ID": 7,
"Name": "SuperLCD 42",
"Category": "Televisions"
}, {
"ID": 8,
"Name": "SuperPlasma 65",
"Category": "Televisions"
}, {
"ID": 9,
"Name": "SuperLCD 70",
"Category": "Televisions"
}, {
"ID": 10,
"Name": "DesktopLED 21",
"Category": "Monitors"
}, {
"ID": 11,
"Name": "DesktopLED 19",
"Category": "Monitors"
}, {
"ID": 12,
"Name": "DesktopLCD 21",
"Category": "Monitors"
}, {
"ID": 13,
"Name": "DesktopLCD 19",
"Category": "Monitors"
}, {
"ID": 14,
"Name": "Projector Plus",
"Category": "Projectors"
}, {
"ID": 15,
"Name": "Projector PlusHD",
"Category": "Projectors"
}, {
"ID": 16,
"Name": "Projector PlusHT",
"Category": "Projectors"
}, {
"ID": 17,
"Name": "ExcelRemote IR",
"Category": "Automation"
}, {
"ID": 18,
"Name": "ExcelRemote BT",
"Category": "Automation"
}, {
"ID": 19,
"Name": "ExcelRemote IP",
"Category": "Automation"
}];