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Tree View

TreeView with Search Bar

To add a search bar to the TreeView and customize the search functionality, do the following:

  • Set the searchEnabled property to true.

  • Use the searchMode property to specify whether items should contain (default), start with, or match the search string. In this example, you can switch between search modes in the drop-down menu.

  • Configure the searchExpr property to specify custom search fields. The default search field is text.

The TreeView uses the TextBox component as a search bar. To customize it, specify TextBox properties in the searchEditorOptions object.

We do not recommend that you enable search if the TreeView uses virtual mode or custom logic to load data on demand. In these cases, the TreeView may not have the full dataset, and the search results include only loaded nodes.

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window.onload = function() { var searchMode = ko.observable("contains"); var viewModel = { treeViewOptions: { items: products, width: 500, searchEnabled: true, searchMode: searchMode }, searchModeOptions: { dataSource: ["contains", "startsWith"], value: searchMode } }; ko.applyBindings(viewModel); };
<!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/21.1.5/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.5/css/dx.light.css" /> <script src="https://cdn3.devexpress.com/jslib/21.1.5/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="treeview" data-bind="dxTreeView: treeViewOptions"></div> <div class="options"> <div class="caption">Options</div> <div class="option"> <span>Search mode</span> <div data-bind="dxSelectBox: searchModeOptions"></div> </div> </div> </div> </body> </html>
#treeview { height: 400px; } .options { padding: 20px; position: absolute; bottom: 0; right: 0; width: 260px; top: 0; background-color: #f5f5f5; } .caption { font-size: 18px; font-weight: 500; } .option { margin-top: 10px; } .option > .dx-selectbox { display: inline-block; vertical-align: middle; max-width: 350px; width: 100%; margin-top: 5px; }
var products = [{ id: "1", text: "Stores", expanded: true, items: [{ id: "1_1", text: "Super Mart of the West", expanded: true, items: [{ id: "1_1_1", text: "Video Players", items: [{ id: "1_1_1_1", text: "HD Video Player", price: 220 }, { id: "1_1_1_2", text: "SuperHD Video Player", price: 270 }] }, { id: "1_1_2", text: "Televisions", items: [{ id: "1_1_2_1", text: "SuperLCD 42", price: 1200 }, { id: "1_1_2_2", text: "SuperLED 42", price: 1450 }, { id: "1_1_2_3", text: "SuperLED 50", price: 1600 }, { id: "1_1_2_4", text: "SuperLCD 55", price: 1350 }, { id: "1_1_2_5", text: "SuperLCD 70", price: 4000 }] }, { id: "1_1_3", text: "Monitors", items: [{ id: "1_1_3_1", text: "19\"", items: [{ id: "1_1_3_1_1", text: "DesktopLCD 19", price: 160 }] }, { id: "1_1_3_2", text: "21\"", items: [{ id: "1_1_3_2_1", text: "DesktopLCD 21", price: 170 }, { id: "1_1_3_2_2", text: "DesktopLED 21", price: 175 }] }] }, { id: "1_1_4", text: "Projectors", items: [{ id: "1_1_4_1", text: "Projector Plus", price: 550 }, { id: "1_1_4_2", text: "Projector PlusHD", price: 750 }] }] }, { id: "1_2", text: "Braeburn", items: [{ id: "1_2_1", text: "Video Players", items: [{ id: "1_2_1_1", text: "HD Video Player", price: 240 }, { id: "1_2_1_2", text: "SuperHD Video Player", price: 300 }] }, { id: "1_2_2", text: "Televisions", items: [{ id: "1_2_2_1", text: "SuperPlasma 50", price: 1800 }, { id: "1_2_2_2", text: "SuperPlasma 65", price: 3500 }] }, { id: "1_2_3", text: "Monitors", items: [{ id: "1_2_3_1", text: "19\"", items: [{ id: "1_2_3_1_1", text: "DesktopLCD 19", price: 170 }] }, { id: "1_2_3_2", text: "21\"", items: [{ id: "1_2_3_2_1", text: "DesktopLCD 21", price: 180 }, { id: "1_2_3_2_2", text: "DesktopLED 21", price: 190 }] }] }] }, { id: "1_3", text: "E-Mart", items: [{ id: "1_3_1", text: "Video Players", items: [{ id: "1_3_1_1", text: "HD Video Player", price: 220 }, { id: "1_3_1_2", text: "SuperHD Video Player", price: 275 }] }, { id: "1_3_3", text: "Monitors", items: [{ id: "1_3_3_1", text: "19\"", items: [{ id: "1_3_3_1_1", text: "DesktopLCD 19", price: 165 }] }, { id: "1_3_3_2", text: "21\"", items: [{ id: "1_3_3_2_1", text: "DesktopLCD 21", price: 175 }] }] }] }, { id: "1_4", text: "Walters", items: [{ id: "1_4_1", text: "Video Players", items: [{ id: "1_4_1_1", text: "HD Video Player", price: 210 }, { id: "1_4_1_2", text: "SuperHD Video Player", price: 250 }] }, { id: "1_4_2", text: "Televisions", items: [{ id: "1_4_2_1", text: "SuperLCD 42", price: 1100 }, { id: "1_4_2_2", text: "SuperLED 42", price: 1400 }, { id: "1_4_2_3", text: "SuperLED 50", price: 1500 }, { id: "1_4_2_4", text: "SuperLCD 55", price: 1300 }, { id: "1_4_2_5", text: "SuperLCD 70", price: 4000 }, { id: "1_4_2_6", text: "SuperPlasma 50", price: 1700 }] }, { id: "1_4_3", text: "Monitors", items: [{ id: "1_4_3_1", text: "19\"", items: [{ id: "1_4_3_1_1", text: "DesktopLCD 19", price: 160 }] }, { id: "1_4_3_2", text: "21\"", items: [{ id: "1_4_3_2_1", text: "DesktopLCD 21", price: 170 }, { id: "1_4_3_2_2", text: "DesktopLED 21", price: 180 }] }] }, { id: "1_4_4", text: "Projectors", items: [{ id: "1_4_4_1", text: "Projector Plus", price: 550 }, { id: "1_4_4_2", text: "Projector PlusHD", price: 750 }] }] }] }];