ASPxHtmlEditor provides a built-in means to perform powerful validation of its content, both on the client and server. Different validation settings are available for customization via the editor's ASPxHtmlEditor.SettingsValidation property.
To define editor validation logic, use the following methods (which can be combined together if required).
An editor's server validation is always performed while processing an external postback, if the editor's content has been changed. The server validation can also be initiated programmatically via the editor's ASPxHtmlEditor.Validate server method call, or the ASPxEdit.ValidateEditorsInContainer static server method.