-
Data Grid
- Overview
-
Data Binding
-
Paging and Scrolling
-
Editing
-
Grouping
-
Filtering and Sorting
- Focused Row
-
Row Drag & Drop
-
Selection
-
Columns
- State Persistence
-
Appearance
-
Templates
-
Data Summaries
-
Master-Detail
-
Export to PDF
-
Export to Excel
-
Adaptability
- Keyboard Navigation
-
Pivot Grid
- Overview
-
Data Binding
-
Field Chooser
-
Features
-
Export to Excel
-
Tree List
- Overview
-
Data Binding
- Sorting
- Paging
-
Editing
- Node Drag & Drop
- Focused Row
-
Selection
-
Filtering
-
Column Customization
- State Persistence
- Adaptability
- Keyboard Navigation
-
Scheduler
- Overview
-
Data Binding
-
Views
-
Features
- Virtual Scrolling
-
Grouping
-
Customization
- Adaptability
-
Html Editor
-
Chat
-
Diagram
- Overview
-
Data Binding
-
Featured Shapes
-
Custom Shapes
-
Document Capabilities
-
User Interaction
- UI Customization
- Adaptability
-
Charts
- Overview
-
Data Binding
-
Area Charts
-
Bar Charts
- Bullet Charts
-
Doughnut Charts
-
Financial Charts
-
Line Charts
-
Pie Charts
-
Point Charts
-
Polar and Radar Charts
-
Range Charts
-
Sparkline Charts
-
Tree Map
-
Funnel and Pyramid Charts
- Sankey Chart
-
Combinations
-
More Features
-
Export
-
Selection
-
Tooltips
-
Zooming
-
-
Gantt
- Overview
-
Data
-
UI Customization
- Strip Lines
- Export to PDF
- Sorting
-
Filtering
-
Reporting
- AI-powered Extensions
-
Interaction
-
Report Types
-
Data binding
-
Real-life Reports
-
Layout Features
-
Report Controls
-
Web-specific Features
-
Rich Text Editor
- Overview
- Load/Save
- Document Protection
-
Templates
- Autocorrect
-
Customization
- Simple View
-
Spreadsheet
- Overview
-
Open a Document
- Export And Printing
-
Features
-
UI Customization
-
Gauges
- Overview
-
Data Binding
-
Bar Gauge
-
Circular Gauge
-
Linear Gauge
-
Navigation
- Overview
- Accordion
-
Menu
- Multi View
-
Drawer
-
Tab Panel
-
Tabs
-
Toolbar
- Pagination
-
Tree View
- Right-to-Left Support
-
Layout
-
Tile View
- Splitter
-
Gallery
- Scroll View
- Resizable
-
-
Editors
- Overview
- Autocomplete
-
Calendar
- Check Box
- Color Box
- Date Box
-
Date Range Box
-
Drop Down Box
-
Number Box
-
Select Box
- Switch
-
Tag Box
- Text Area
- Text Box
- Validation
- Custom Text Editor Buttons
- Right-to-Left Support
- Editor Appearance Variants
-
Forms and Multi-Purpose
- Overview
- Button Group
- Field Set
-
Filter Builder
-
Form
- Radio Group
-
Range Selector
- Numeric Scale (Lightweight)
- Numeric Scale
- Date-Time Scale (Lightweight)
- Date-Time Scale
- Logarithmic Scale
- Discrete scale
- Custom Formatting
- Use Range Selection for Calculation
- Use Range Selection for Filtering
- Image on Background
- Chart on Background
- Customized Chart on Background
- Chart on Background with Series Template
- Range Slider
- Slider
-
Sortable
-
File Management
-
File Manager
- Overview
-
File System Types
-
Customization
-
File Uploader
-
-
Actions and Lists
-
Maps
- Overview
-
Map
-
Vector Map
-
Dialogs and Notifications
-
Localization
Drop Down Button
DropDownButton is a button that opens a drop-down menu. The button displays a text and an icon.
To get started with the DevExtreme DropDownButton component, refer to the following tutorial for step-by-step instructions: Getting Started with DropDownButton.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
@model DevExtreme.NETCore.Demos.ViewModels.DropDownButtonViewModel
<div class="dx-fieldset">
<div class="dx-fieldset-header">Standalone button</div>
<div class="dx-field">
<div class="dx-field-label">
Text and icon
</div>
<div class="dx-field-value">
@(Html.DevExtreme().DropDownButton()
.Text("Download Trial")
.Icon("save")
.DropDownOptions(options => options.Width(230))
.DataSource(Model.Downloads)
.OnItemClick("downloadButton_click")
)
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">
Custom template and actions
</div>
<div class="dx-field-value">
@(Html.DevExtreme().DropDownButton()
.ID("custom-template")
.SplitButton(true)
.DisplayExpr("Text")
.KeyExpr("Value")
.UseSelectMode(false)
.DataSource(Model.ProfileSettings)
.OnButtonClick("profileButton_click")
.OnItemClick("profileItem_click")
.Template(@<text>
<div class="button-img-container">
<div class="button-img-indicator"></div>
<img class="button-img" src="@Url.Content("~/images/employees/51.png")" alt="employee" />
</div>
<div class="text-container">
<div class="button-title">Olivia Peyton</div>
<div class="button-row">IT Manager</div>
</div>
</text>)
)
</div>
</div>
</div>
<div class="dx-fieldset">
<div class="dx-fieldset-header">Embedded in a Toolbar</div>
<div class="dx-field">
@(Html.DevExtreme().Toolbar()
.Items(items => {
items.Add()
.Widget(w => w.DropDownButton()
.DataSource(Model.Alignments)
.DisplayExpr("Text")
.KeyExpr("Value")
.SelectedItemKey("justify")
.Width(125)
.StylingMode(ButtonStylingMode.Text)
.UseSelectMode(true)
.OnSelectionChanged("change_alignment")
)
.Location(ToolbarItemLocation.Before);
items.Add()
.Widget(w => w.DropDownButton()
.DataSource(Model.Colors)
.StylingMode(ButtonStylingMode.Text)
.Icon("square")
.DropDownOptions(o => o.Width("auto"))
.OnInitialized("init_colorpicker")
.DropDownContentTemplate(new TemplateName("colorpicker-template"))
)
.Location(ToolbarItemLocation.Before);
items.Add()
.Widget(w => w.DropDownButton()
.DisplayExpr("Text")
.KeyExpr("Value")
.SelectedItemKey("14")
.StylingMode(ButtonStylingMode.Text)
.UseSelectMode(true)
.DataSource(Model.FontSizes)
.OnSelectionChanged("change_size")
.ItemTemplate(@<text>
<div style="font-size: <%- Text %>;"><%- Text %></div>
</text>)
)
.Location(ToolbarItemLocation.Before);
items.Add()
.Widget(w => w.DropDownButton()
.DisplayExpr("Text")
.KeyExpr("Value")
.SelectedItemKey("1.35")
.StylingMode(ButtonStylingMode.Text)
.UseSelectMode(true)
.DataSource(Model.LineHeights)
.Icon("indent")
.OnSelectionChanged("change_lineHeight")
)
.Location(ToolbarItemLocation.Before);
})
)
</div>
<div class="dx-field">
<p id="text">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
</div>
</div>
@using (Html.DevExtreme().NamedTemplate("colorpicker-template")) {
<div class="custom-color-picker">
@foreach (var color in Model.Colors)
{<i style="color: @color" class="color dx-icon dx-icon-square" onclick="onColorClick('@color')"></i>}
</div>
}
<script>
function downloadButton_click(e) {
DevExpress.ui.notify("Download " + e.itemData, "success", 600);
}
function profileButton_click(e) {
DevExpress.ui.notify("Go to " + $(e.element).find('.button-title').text() + "'s profile", "success", 600);
}
function profileItem_click(e) {
DevExpress.ui.notify(e.itemData.Text, "success", 600);
}
function change_alignment(e) {
$("#text").css("text-align", e.item.Value);
}
function change_size(e) {
$("#text").css("font-size", e.item.Text);
}
function change_lineHeight(e) {
$("#text").css("line-height", e.item.Value);
}
var dropDownButton;
function init_colorpicker(e) {
dropDownButton = e.component;
}
function onColorClick(color) {
var $colorIcon = dropDownButton.$element().find(".dx-dropdownbutton-action .dx-icon").first();
applyColor($("#text"), color);
applyColor($colorIcon, color);
dropDownButton.close();
}
function applyColor($element, color) {
if (color) {
$element.css("color", color);
} else {
$element.css("color", "");
}
}
</script>
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Menu items can be specified in the items or dataSource properties. Use dataSource if data is remote or should be processed.
DropDownButton stores the most recent selected menu item if you set the useSelectMode property to true
. In this case, the button uses the selected item's text and icon.
To customize DropDownButton, specify the the following options:
-
itemTemplate
Customizes menu items. -
template
Customizes a base button. -
dropDownContentTemplate
Replaces the drop-down menu with custom content.
To track and handle events, use the onButtonClick, onItemClick, and onSelectionChanged event handlers.