Cancel preremove event

alexsch

Hi all,

I want to cancel a preremove event in case an integrity check fails.

Following the approach described in https://datatables.net/forums/discussion/43689 I tried to return false to cancel the preRemove event but it does not work:

Editor.on('preRemove', function (e, json) {
            let canContinue = true;
            $.each(data, function(index, rowId) {
                canContinue = checkCanContinue(rowId);
            });
            if(!canContinue) {
                alert('In Use.')
                return false;
            }
        });

Any ideas?

tangerine

Your alert statement needs a semi-colon.

alexsch

Sorry, the semi-colon missed the copy & paste somehow. Nevertheless the event does not get cancelled and the row is removed.

alexsch

Seems that not all pre* events can be cancelled by returning false.

This works:

editor.on('preOpen', function (e, mode, action) {
            if(action == 'remove') {
                let canContinue = true;

                table.rows( { selected: true } ).ids().each(function(rowId) {
                    if(false == doIntegrityCheck(rowId)) {
                        canContinue = false;
                        ingredientsTable.buttons.info(
                            'Warning',
                            'Cannot delete row',
                            3000
                        );
                        return;
                    }
                });

                return canContinue;
            }
        });