[Expand]General Information
[Expand]WinForms Controls
[Collapse]ASP.NET Controls and MVC Extensions
 [Expand]Prerequisites
 [Expand]What's Installed
 [Expand]Common Concepts
 [Collapse]ASP.NET WebForms Controls
   Getting Started
  [Expand]Grid View
  [Expand]Tree List
  [Expand]Card View
  [Expand]Reporting
  [Expand]Chart Control
  [Expand]Pivot Grid
  [Expand]Spreadsheet
  [Expand]Rich Text Editor
  [Expand]Scheduler
  [Expand]Site Navigation and Layout
  [Expand]HTML Editor
  [Expand]Gauges
  [Expand]Vertical Grid
  [Expand]Data Editors
  [Expand]Docking and Popups
  [Expand]File Management
  [Expand]Data and Image Navigation
  [Collapse]Multi-Use Site Controls
   [Expand]Product Information
   [Expand]Callback Control
   [Expand]Callback Panel
   [Collapse]Captcha Control
     ASPxCaptcha Overview
    [Collapse]Visual Elements
      Refresh Button
      Challenge Image
      Text Box
      Loading Panel
   [Expand]HiddenField
   [Expand]ObjectContainer
   [Expand]Rating Control
   [Expand]RoundPanel
   [Expand]Timer Control
  [Expand]Spell Checker
  [Expand]Query Builder
 [Expand]ASP.NET MVC Extensions
 [Expand]Localization
 [Expand]Redistribution and Deployment
  Get More Help
 [Expand]API Reference
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Office File API
[Expand]Reporting
[Expand]Report and Dashboard Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]eXpress Persistent Objects
[Expand]CodeRush
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation
ASP.NET Controls and MVC Extensions > ASP.NET WebForms Controls > Multi-Use Site Controls > Captcha Control > Visual Elements > Challenge Image
View this topic on docs.devexpress.com (Learn more)

Challenge Image

The challenge image is used to displayed the code.

The table below lists the main members which affect the element's appearance and functionality:

Characteristics Members
Animation ASPxCaptcha.EnableCallbackAnimation
Settings ASPxCaptcha.ChallengeImage
Localization ASPxEditorsStringId.Captcha_DefaultImageAlternateText

Is this topic helpful?​​​​​​​
Copyright (c) 1998-2018 Developer Express Inc. All rights reserved.