Duplicate keys

hminhduc

When create new row data, sometime input a existing key data and i want add a custom message for check that.
So how can do check duplicate keys and raise error before submit action on client site.

rf1234

Do an ajax call and check for duplicate key on the server. You can use an event handler for that, e.g. initSubmit

https://editor.datatables.net/reference/event/initSubmit