aspnet-devexpress-dot-web-dot-aspxcaptcha-dot-underscore-events.md
A control used for the challenge-response authentication.
| Name | Description |
|---|---|
| CallbackError static | Allows you to handle any server exception that might occur during server-side processing of a callback sent by a DevExpress web control. Inherited from ASPxWebControl. |
| ChallengeImageCustomRender | Enables you to implement custom logic for rendering the ASPxCaptcha’s challenge image. |
| DataBinding | Occurs when the server control binds to a data source. Inherited from Control. |
| Disposed | Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested. Inherited from Control. |
| Init | Occurs when the server control is initialized, which is the first step in its lifecycle. Inherited from Control. |
| Load | Occurs when the server control is loaded into the Page object. Inherited from Control. |
| PreRender | Occurs after the Control object is loaded but prior to rendering. Inherited from Control. |
| Unload | Occurs when the server control is unloaded from memory. Inherited from Control. |
See Also