The ASPxValidationSummary allows you to easily validate DevExpress editors within the form, and to display validation errors grouped in a single panel.

The manner in which validation error texts are presented within the ASPxValidationSummary's panel can be controlled using the RenderMode property. They can be displayed as a table, or as a bulleted or ordered list.

Validation error texts can also serve as links, if the ShowErrorAsLink property is set to true. Clicking a link in this case moves focus to the corresponding invalid editor.

If the ValidateOnLeave property is set to true, DevExpress editors are validated on the fly (on changing value), without the necessity of a Submit button click. Using the SetFocusOnError property, input focus can be forcibly moved to an invalid editor when clicking the Submit button.