DataSource correct usage

[cuthbe]

All

Is this the correct way to use the DataSource object for inserting and updating objects.

if(this.ListGrid().getDataAsRecordList().contains(record)) {
   this.DataSource().updateData(record);
} else {
   this.DataSource().addData(record);
}

And the ListGrid is setup as follows

this.ListGrid.setDataSource(datasource);