-
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
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).
Was this demo helpful?
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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;
}
}