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Data Grids / Data Management
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Data Grid
- Overview
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Data Binding
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Filtering
- Sorting
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Editing
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Grouping
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Selection
- Focused Row
- Paging
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Scrolling
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Columns
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Master-Detail
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Data Summaries
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Drag & Drop
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Export to PDF
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Export to Excel
- Appearance
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Customization
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Adaptability
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Keyboard Navigation
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Tree List
- Overview
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Data Binding
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Filtering
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Editing
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Selection
- Focused Row
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Columns
- Drag & Drop
- State Persistence
- Adaptability
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Keyboard Navigation
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Card View
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Pivot Grid
- Overview
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Data Binding
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Field Management
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Data Summaries
- Drill Down
- Filtering
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Scrolling
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Export to Excel
- Chart Integration
- Customization
- State Persistence
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Filter Builder
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Data Visualization
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Charts
- Overview
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Data Binding
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Common Concepts
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Axis
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Aggregation
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Tooltips
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Selection
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Customization
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Zooming
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Export
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Area Charts
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Bar Charts
- Bullet Charts
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Doughnut Charts
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Financial Charts
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Funnel and Pyramid Charts
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Line Charts
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Pie Charts
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Point Charts
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Polar and Radar Charts
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Range Charts
- Sankey Chart
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Sparkline Charts
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Tree Map
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Gauges
- Overview
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Runtime update
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Bar Gauge
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Circular Gauge
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Linear Gauge
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Diagram
- Overview
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Data Binding
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Featured Shapes
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Custom Shapes
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Document Capabilities
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User Interaction
- UI Customization
- Adaptability
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Scheduling / Planning
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Scheduler
- Overview
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Data Binding
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Views
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Appointments
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Timetable
- Editing
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Grouping
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Customization
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Gantt
- Overview
- Data Binding
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Filtering
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- Export to PDF
- Validation
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Customization
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Reporting
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AI-powered Extensions
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Interaction
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Report Types
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Data binding
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Real-life Reports
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Layout Features
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Report Controls
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Web-specific Features
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Rich Text Editor
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Templates
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Customization
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Spreadsheet
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Open a Document
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Features
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UI Customization
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Messaging
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WYSIWYG Editor
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Forms
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Data Editors
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Common Concepts
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Calendar
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Date Range Box
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Number Box
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Range Selector
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Drop-Downs
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Drop Down Box
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Select Box
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Tag Box
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Lookup
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Buttons
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File Upload / File Management
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File Manager
- Overview
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File System Types
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Customization
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File Uploader
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Popup and Notifications
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Navigation
- Overview
- Accordion
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Context Menu
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Menu
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Drawer
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Tab Panel
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Tabs
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Toolbar
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Stepper
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List
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Tree View
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Layout
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Tile View
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Gallery
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Interactive Wrappers
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Sortable
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Progress Indicators
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Maps
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Map
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Vector Map
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Data Binding
- Multiple Layers
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Markers
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Zooming and Panning
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Customization
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Localization
Related Demos:
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Rich Edit - Context Menu
The contextMenu property allows you to customize the DevExpress ASP.NET Core Rich Text Editor's context menu. You can handle the contextMenuShowing event to additionally modify the menu before it is displayed.
In this demo, the contextMenu.items collection is customized on the Init event. The ContextMenuShowing event is handled to modify the collection based on the current selection.
Click on a custom menu item raises the CustomCommandExecuted event. The event handler identifies the clicked item by its name (the e.commandName property) and processes the item click (search the selected text in Google).
Backend API
<script src="~/DemosScripts/contextMenuCustomization.js"></script>
@(Html.DevExpress().RichEdit("DemoRichEdit")
.Open("Documents/ContextMenu.docx")
.OnInit("onInit")
.OnCustomCommandExecuted("onCustomCommandExecuted")
.OnContextMenuShowing("onContextMenuShowing")
.Height(600)
.ConfirmOnLosingChanges(c => c.Enabled(false))
)
using Microsoft.AspNetCore.Mvc;
namespace AspNetCoreDemos.RichEdit {
[Route("[action]")]
public class RichEditController : Controller {
public IActionResult ContextMenuCustomization() {
return View();
}
}
}
var customizedOnEventItemId = 'customizedOnEventId';
var googleSearchId = 'googleSearchId';
// icons: https://js.devexpress.com/Documentation/Guide/Themes_and_Styles/Icons/#Built-In_Icon_Library
function onInit(s) {
s.contextMenu.insertItem(new DevExpress.RichEdit.ContextMenuItem(customizedOnEventItemId, {
icon: 'coffee', beginGroup: true, text: 'Customized on event', visible: false, disabled: true
}), 0);
s.contextMenu.insertItem(new DevExpress.RichEdit.ContextMenuItem(googleSearchId, {
icon: 'search', beginGroup: true, text: 'Google Search...'
}), 1);
s.contextMenu.removeItem(DevExpress.RichEdit.ContextMenuCommandId.DecreaseParagraphIndent);
s.contextMenu.removeItem(DevExpress.RichEdit.ContextMenuCommandId.IncreaseParagraphIndent);
s.contextMenu.insertItem(new DevExpress.RichEdit.ContextMenuItem(DevExpress.RichEdit.MailMergeTabCommandId.CreateDateField, {
icon: 'clock', text: 'Insert Date Field'
}), 1);
}
function onContextMenuShowing(s, e) {
var characterProperties = s.selection.activeSubDocument.getCharacterProperties(s.selection.intervals[0]);
if (characterProperties.bold === true || characterProperties.bold === undefined) {
e.contextMenu.removeItem(DevExpress.RichEdit.ContextMenuCommandId.Copy);
e.contextMenu.removeItem(DevExpress.RichEdit.ContextMenuCommandId.Paste);
e.contextMenu.removeItem(DevExpress.RichEdit.ContextMenuCommandId.Cut);
e.contextMenu.getItem(customizedOnEventItemId).visible = true;
e.contextMenu.items[0].beginGroup = true;
e.contextMenu.insertItem(new DevExpress.RichEdit.ContextMenuItem('CutCopy', {
icon: 'close', text: 'Copy Paste Disabled', disabled: true
}), 1);
}
};
function onCustomCommandExecuted(s, e) {
switch (e.commandName) {
case googleSearchId:
var selectedText = s.selection.activeSubDocument.getText(s.selection.intervals[0]);
window.open("https://www.google.com/search?q=" + selectedText, "_blank");
break;
}
}