Hi Christophe Weibel,

The methods which you used does not refresh the data source. They refresh the HTML Elements used in the grid i.e re-create them, update the layout, etc.

Here is an example which shows how to use the onRowUpdate

window.Smart('#grid', class {
    get properties() {
        return {
            dataSource: new window.Smart.DataAdapter({
                dataSource: window.generateData(100),
                dataFields: [
                    'id: number',
                    'firstName: string',
                    'lastName: string',
                    'productName: string',
                    'available: bool',
                    'quantity: number',
                    'price: number',
                    'total: number'
                ]
            }),
            editing: {
                enabled: true,
                mode: 'row'
            },
            onRowUpdate(index, row, oldValue, value, confirm) {
                if (value.firstName === 'Test') {
				   confirm(true);
                }
                else {
                    confirm(false);
                }
            },
            selection: {
                enabled: true,
                allowCellSelection: true,
                allowRowHeaderSelection: true,
                allowColumnHeaderSelection: true,
                mode: 'extended'
            },
            columns: [
                {
                    label: 'First Name', dataField: 'firstName'
                },
                { label: 'Last Name', dataField: 'lastName' },
                { label: 'Product', dataField: 'productName' },
                { label: 'Available', dataField: 'available', template: 'checkBox', editor: 'checkBox' },
                { label: 'Quantity', dataField: 'quantity', editor: 'numberInput' },
                { label: 'Unit Price', dataField: 'price', editor: 'numberInput', cellsFormat: 'c2' }
            ]
        };
    }
});

In the above code, when the firstName column’s value is ‘Test’, changes are saved, otherwise they are not.

Best regards,
Peter Stoev

Smart UI Team
https://www.htmlelements.com/