How to serverside validation in CRUD DataGrid

[kg]

Hi All,

when I input student ID to CRUD DataGrid (add/update) record  studentID field.
how to serverside validation studentID field?

thank you very much!

[stworthy]

In your server side, return the error message with 'isError' set to true when validation fails.

Code:

//server side code
echo json_encode(array(
	'isError' => true,
	'msg' => 'error message.'
));