Nitobi

In the stock components you can do things like this from the handlers:

Classic ASP: EBAGetHandler_SetErrorMessage(ErrorMessage?) and EBASaveHandler_SetErrorMessage(ErrorMessage?)
PHP: EBAGetHandler::setErrorMessage($message) and EBASaveHandler::setErrorMessage($message)
JSP: GetHandler?.setErrorMessage(String message) and SaveHandler?.setErrorMessage(String message)
… and then retrieve them via JS like so:

var dataSource = nitobi.getGrid('gridID').getDataSource(); var errorMessage = dataSource.getHandlerError();

Need to add support for this in .NET land.