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Overview
Getting Started
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Overview
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Migrate to the New Version

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DevExpress Installation
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Common Tools

Project Converter
Assembly Deployment Tool
Localization Service

Quality Assurance and Productivity

CodeRush for Visual Studio (FREE)
TestCafe Studio

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
ASP.NET MVC Extensions
ASP.NET Core Controls
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DevExtreme
DevExtreme ASP.NET MVC Controls
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Tools

ASP.NET Theme Builder
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Mobile

Xamarin UI Controls (FREE)
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Enterprise and Analytic Tools

Reporting
Report and Dashboard Server
BI Dashboard
Office File API

End-User Documentation

Interface Elements for Desktop
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Dashboard for Desktop
Dashboard for Web

JavaScript/jQuery Tooltip - ShowingEvent

The type of the showing event handler's argument.

import { ShowingEvent } from "devextreme/ui/tooltip"
Type:

Object

Used in:

cancel

Specifies whether the event is cancelable.

Type:

Boolean

component

The UI component's instance.

Type:

Tooltip

element

The UI component's container.

Type:

HTMLElement | jQuery