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  [Collapse]DevExpress.Web.Captcha
    CaptchaFontStyle Enumeration
   [Expand]CaptchaImageProperties Class
   [Expand]CaptchaStyles Class
   [Expand]CaptchaTextBoxProperties Class
   [Expand]CaptchaTextBoxStyle Class
   [Collapse]CaptchaValidationSettings Class
     CaptchaValidationSettings Members
    [Expand]CaptchaValidationSettings Constructor
    [Collapse]CaptchaValidationSettings Properties
      Display Property
      EnableValidation Property
      ErrorDisplayMode Property
      ErrorFrameStyle Property
      ErrorImage Property
      ErrorText Property
      RequiredField Property
      SetFocusOnError Property
      ValidationGroup Property
    [Expand]CaptchaValidationSettings Methods
   [Expand]ChallengeImageCustomRenderEventArgs Class
    ChallengeImageCustomRenderEventHandler Delegate
    ControlPosition Enumeration
   [Expand]RefreshButtonProperties Class
   [Expand]RefreshButtonStyle Class
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 End-User Documentation

CaptchaValidationSettings.EnableValidation Property

Gets or sets a value that specifies whether validation is performed when the editor is set to validate when a postback occurs.

Namespace:DevExpress.Web.Captcha
Assembly:DevExpress.Web.v17.2.dll

Expanded Syntax

Property value

Type: Boolean
true if validation is performed when the editor is set to validate when a postback occurs; otherwise, false.
The default is true.

Expanded Remarks

When the value of the EnableValidation property is set to true, you can also use the ValidationSettings.ValidationGroup property to specify the name of the validation group for which the editor is validated.

Expanded Example

The following part of the ASPxCaptcha - Custom Appearance online demo illustrates how to implement a captcha control with a custom appearance.

In this example, the control's Refresh Button.ASPxCaptcha and Text Box.ASPxCaptcha are hidden, and their functionaliry is implemented in a custom manner using separate controls (the IMG element, ASPxLabel, ASPxTextBox).

Expanded See Also

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