MultiSelect without $checked Property

The MultiSelect control requires a data member to determine whether items are selected. If one is not provided, the control adds a $checked property to the data items. You can prevent this by creating a dedicated itemsSource that contains objects with two properties: the original item and the checked member.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import * as input from '@grapecity/wijmo.input'; import { getData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { var theMultiSelect = new input.MultiSelect('#theMultiSelect', { placeholder: 'Devices', displayMemberPath: 'item.name', checkedMemberPath: 'checked', itemsSource: getCheckableData(), checkedItemsChanged: (sender) => { let checkedItems = sender.checkedItems.map(checkableItem => checkableItem.item); document.querySelector('#checkedItems').textContent = checkedItems.length ? JSON.stringify(checkedItems) : ''; } }); // // create a data source with items and an extra checkable member function getCheckableData() { return getData().map(item => ({ item: item, checked: false })); } }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity MultiSelect - no $checked property</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <div class="row"> <div class="col-xs-5"> <div id="theMultiSelect"></div> </div> <div class="col-xs-7"> <p> <b>Checked Items:</b> </p> <p id="checkedItems"></p> </div> </div> </div> </body> </html>
// list of country GDP and populations // https://en.wikipedia.org/wiki/List_of_IMF_ranked_countries_by_GDP export function getData() { return [ { "specific_type": "3067VIP10G-3G", "name": "My Crazy VIP", "generic_type": "vip10g", "id": 2, "model": "3067VIP10G-3G", "properties": { "ndisplays": 1, "addr2": { "ip": null, "port": 9700 }, "snmp_monitor_port": 161, "nvidinputs": 36, "addr1": { "ip": "127.0.0.12", "port": 9700 } } }, { "specific_type": "EXE", "name": "My Crazy EXE", "generic_type": "exe", "id": 3, "model": "EXE", "properties": { "nports": 1152, "addr2": { "ip": null, "port": 9671 }, "snmp_monitor_port": 161, "addr1": { "ip": "127.0.0.1", "port": 9671 } } }, { "specific_type": "3067VIP10G-3G", "name": "Another VIP", "generic_type": "vip10g", "id": 4, "model": "3067VIP10G-3G", "properties": { "ndisplays": 1, "addr2": { "ip": null, "port": 9700 }, "snmp_monitor_port": 161, "nvidinputs": 36, "addr1": { "ip": "127.0.0.1", "port": 9700 } } }, { "specific_type": "570IPG-3G18-SFPP12", "name": "My Crazy IPG", "generic_type": "ipg", "id": 1, "model": "570IPG-3G18-SFPP12", "properties": { "in_band_control": { "ibctrl1": { "tally_port": 6578, "sfp": 1, "src_ip": null, "netmask": "255.255.255.0", "tally_ip": null, "dest_ip": null, "dest_port": 6577 }, "enabled": false, "ibctrl2": { "tally_port": 6578, "sfp": 3, "src_ip": null, "netmask": "255.255.255.0", "tally_ip": null, "dest_ip": null, "dest_port": 6577 } }, "port_properties": { "sdi8": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi9": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi6": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi7": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi4": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi5": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi2": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi3": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi1": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi14": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi15": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi16": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi17": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi10": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi11": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi12": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi13": { "rx_sfp": "Dynamic", "direction": "In" }, "sdi18": { "rx_sfp": "Dynamic", "direction": "In" } }, "addr2": { "ip": null, "port": 161 }, "snmp_monitor_port": 161, "addr1": { "ip": "127.0.0.1", "port": 161 } } } ]; }
body { margin-bottom: 24pt; }
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