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Overview
Getting Started
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Project Converter
Assembly Deployment Tool
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Desktop

Controls

WinForms
WPF
VCL
WinUI

Tools

WinForms Skin Editor
WPF Theme Designer
WPF Theme Editor (Legacy)
Coded UI Test Extension

Frameworks and Libraries

XAF - Cross-Platform .NET App UI
XPO - .NET ORM Library (FREE)
XPO Profiler
Core Libraries
Drawing Graphics Library
.NET App Security & Web API Service (FREE)

Web

Controls and Extensions

ASP.NET Web Forms Controls
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Report and Dashboard Server
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JavaScript/jQuery Tabs - SelectionChangingEvent

The type of the selectionChanging event handler's argument.

import { SelectionChangingEvent } from "devextreme/ui/tabs"
Type:

Object

Used in:

addedItems

Type:

Array<any>

cancel

Type:

Boolean

|

Promise<Boolean> (jQuery or native)

component

The UI component's instance.

Type:

Tabs

element

The UI component's container.

Type:

HTMLElement | jQuery

removedItems

Type:

Array<any>