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Overview

The TagBox allows users to select multiple items from a drop-down list. This demo illustrates the following TagBox properties:

  • items
    An array of items displayed by the TagBox.

  • searchEnabled
    Specifies whether the search is enabled.

  • showSelectionControls
    Defines whether to display the selection controls.

  • applyValueMode
    Specifies whether selected values are applied instantly or when a user clicks the OK button.

  • hideSelectedItems
    Specifies whether the selected items are removed from the drop-down list.

  • multiline
    Displays selected items on single or multiple lines.

  • acceptCustomValue
    Specifies whether users can enter custom values. Requires that you also implement the onCustomItemCreating handler.

  • placeholder
    Customizes the TagBox placeholder.

  • value
    Specifies items the TagBox currently displays.

  • disabled
    Defines whether the component responds to user interaction.

  • dataSource
    Binds the TagBox to data. Unlike the items property, dataSource accepts the DataSource object that allows users to sort, filter, group, and shape data. Note that you cannot use items and dataSource simultaneously.

  • itemTemplate
    Allows you to customize the drop-down list items.

@model DevExtreme.MVC.Demos.ViewModels.TagBoxViewModel <div class="form"> <div class="dx-fieldset"> <div class="dx-field"> <div class="dx-field-label">Default mode</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Search mode</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) .SearchEnabled(true) ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Batch selection</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) .ShowSelectionControls(true) .ApplyValueMode(EditorApplyValueMode.UseButtons) ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Hide selected items</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) .HideSelectedItems(true) ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Single line mode</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) .Multiline(false) ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Add custom items</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) .AcceptCustomValue(true) .OnCustomItemCreating("customItem_creating") ) </div> </div> <div class="dx-field"> <div class="dx-field-label">With custom placeholder</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) .Placeholder("Choose Product...") ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Disabled</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .Items(Model.Items) .Value(new [] { Model.Items.First() }) .Disabled(true) ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Data source</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .DataSource(d => d.Mvc().LoadAction("GetProducts").Key("ID")) .DisplayExpr("Name") .ValueExpr("ID") ) </div> </div> <div class="dx-field"> <div class="dx-field-label">Custom template</div> <div class="dx-field-value"> @(Html.DevExtreme().TagBox() .DataSource(d => d.Mvc().LoadAction("GetProducts").Key("ID")) .DisplayExpr("Name") .ValueExpr("ID") .ItemTemplate(@<text> <div class="custom-item"> <img src="<%- ImageSrc %>" /> <div class="product-name"><%- Name %></div> </div> </text>) ) </div> </div> </div> </div> <script> function customItem_creating(args) { var newValue = args.text, component = args.component, currentItems = component.option("items"); currentItems.unshift(newValue); component.option("items", currentItems); args.customItem = newValue; } </script>
using DevExtreme.AspNet.Data; using DevExtreme.AspNet.Mvc; using DevExtreme.MVC.Demos.Models.SampleData; using DevExtreme.MVC.Demos.ViewModels; using Newtonsoft.Json; using System.Linq; using System.Web.Mvc; namespace DevExtreme.MVC.Demos.Controllers { public class TagBoxController : Controller { public ActionResult Overview() { return View(new TagBoxViewModel { Items = SampleData.Electronics.Select(i => i.Name) }); } [HttpGet] public ActionResult GetProducts(DataSourceLoadOptions loadOptions) { return Content(JsonConvert.SerializeObject(DataSourceLoader.Load(SampleData.Electronics, loadOptions)), "application/json"); } } }
using System; using System.Collections.Generic; namespace DevExtreme.MVC.Demos.Models.SampleData { public partial class SampleData { public static readonly IEnumerable<ElectronicsItem> Electronics = new[] { new ElectronicsItem { ID = 1, Name = "HD Video Player", Price = 330, CurrentInventory = 225, Backorder = 0, Manufacturing = 10, Category = "Video Players", ImageSrc = "../../Content/images/products/1-small.png", IconSrc = "../../Content/images/icons/video-player.svg" }, new ElectronicsItem { ID = 2, Name = "SuperHD Player", Price = 400, CurrentInventory = 150, Backorder = 0, Manufacturing = 25, Category = "Video Players", ImageSrc = "../../Content/images/products/2-small.png", IconSrc = "../../Content/images/icons/video-player.svg" }, new ElectronicsItem { ID = 3, Name = "SuperPlasma 50", Price = 2400, CurrentInventory = 0, Backorder = 0, Manufacturing = 0, Category = "Televisions", ImageSrc = "../../Content/images/products/3-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 4, Name = "SuperLED 50", Price = 1600, CurrentInventory = 77, Backorder = 0, Manufacturing = 55, Category = "Televisions", ImageSrc = "../../Content/images/products/4-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 5, Name = "SuperLED 42", Price = 1450, CurrentInventory = 445, Backorder = 0, Manufacturing = 0, Category = "Televisions", ImageSrc = "../../Content/images/products/5-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 6, Name = "SuperLED 55", Price = 1350, CurrentInventory = 345, Backorder = 0, Manufacturing = 5, Category = "Televisions", ImageSrc = "../../Content/images/products/6-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 7, Name = "SuperLCD 42", Price = 1200, CurrentInventory = 210, Backorder = 0, Manufacturing = 20, Category = "Televisions", ImageSrc = "../../Content/images/products/7-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 8, Name = "SuperPlasma 65", Price = 3500, CurrentInventory = 0, Backorder = 0, Manufacturing = 0, Category = "Televisions", ImageSrc = "../../Content/images/products/8-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 9, Name = "SuperLCD 70", Price = 4000, CurrentInventory = 95, Backorder = 0, Manufacturing = 5, Category = "Televisions", ImageSrc = "../../Content/images/products/9-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 10, Name = "DesktopLED 21", Price = 175, CurrentInventory = 0, Backorder = 425, Manufacturing = 75, Category = "Monitors", ImageSrc = "../../Content/images/products/10-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 11, Name = "DesktopLED 19", Price = 165, CurrentInventory = 425, Backorder = 0, Manufacturing = 110, Category = "Monitors", ImageSrc = "../../Content/images/products/11-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 12, Name = "DesktopLCD 21", Price = 170, CurrentInventory = 210, Backorder = 0, Manufacturing = 60, Category = "Monitors", ImageSrc = "../../Content/images/products/12-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 13, Name = "DesktopLCD 19", Price = 160, CurrentInventory = 150, Backorder = 0, Manufacturing = 210, Category = "Monitors", ImageSrc = "../../Content/images/products/13-small.png", IconSrc = "../../Content/images/icons/tv.svg" }, new ElectronicsItem { ID = 14, Name = "Projector Plus", Price = 550, CurrentInventory = 0, Backorder = 55, Manufacturing = 10, Category = "Monitors", ImageSrc = "../../Content/images/products/14-small.png", IconSrc = "../../Content/images/icons/video-player.svg" }, new ElectronicsItem { ID = 15, Name = "Projector PlusHD", Price = 750, CurrentInventory = 110, Backorder = 0, Manufacturing = 90, Category = "Projectors", ImageSrc = "../../Content/images/products/15-small.png", IconSrc = "../../Content/images/icons/video-player.svg" }, new ElectronicsItem { ID = 16, Name = "Projector PlusHT", Price = 1050, CurrentInventory = 0, Backorder = 75, Manufacturing = 57, Category = "Projectors", ImageSrc = "../../Content/images/products/16-small.png", IconSrc = "../../Content/images/icons/video-player.svg" }, new ElectronicsItem { ID = 17, Name = "ExcelRemote IR", Price = 150, CurrentInventory = 650, Backorder = 0, Manufacturing = 190, Category = "Automation", ImageSrc = "../../Content/images/products/17-small.png", IconSrc = "../../Content/images/icons/video-player.svg" }, new ElectronicsItem { ID = 18, Name = "ExcelRemote BT", Price = 180, CurrentInventory = 310, Backorder = 0, Manufacturing = 0, Category = "Automation", ImageSrc = "../../Content/images/products/18-small.png", IconSrc = "../../Content/images/icons/video-player.svg" }, new ElectronicsItem { ID = 19, Name = "ExcelRemote IP", Price = 200, CurrentInventory = 0, Backorder = 325, Manufacturing = 225, Category = "Automation", ImageSrc = "../../Content/images/products/19-small.png", IconSrc = "../../Content/images/icons/video-player.svg" } }; } }
using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace DevExtreme.MVC.Demos.Models { public class ElectronicsItem { public int ID { get; set; } public string Category { get; set; } public string Name { get; set; } public int CurrentInventory { get; set; } public int Backorder { get; set; } public int Manufacturing { get; set; } public int Price { get; set; } public string ImageSrc { get; set; } public string IconSrc { get; set; } } }
using System; using System.Collections.Generic; using System.Linq; namespace DevExtreme.MVC.Demos.ViewModels { public class TagBoxViewModel { public IEnumerable<string> Items { get; set; } } }
body .custom-item { padding-left: 7px; padding-right: 7px; } .custom-item > img { height: 30px; width: 40px; float: left; margin-top: 2px; } .custom-item > div.product-name { margin-left: 40px; line-height: 34px; font-size: 14px; } body .custom-item input { background-color: transparent; } body .dx-popup-content .custom-item { padding-top: 7px; padding-bottom: 8px; } .dx-popup-content .custom-item > div { padding-left: 8px; text-indent: 0; text-overflow: ellipsis; overflow: hidden; }