Inline Editing doesn't work, field always resets after changing it.

[fes]

I am using the LGPL-Version of Smartclient 8.1 with Javascript and JSON.
I have a problem when I am trying to create a grid with editable lines. I can change the value, but when I click somewhere else, it always resets the field to the value it had before.

This is the Code for my grid:

egui.order_lines_order_lines_list_Grid = isc.ListGrid.create({
    ID: "order_lines_order_lines_list_Grid",
    alternateRecordStyles: true, 
    modalEditing: true, 
    autoFetchData: true, 
    width: 780, 
    height: 224, 
    position: "relative", 
    editEvent: "doubleClick",
    canEdit: true, 
    editByCell: true, 
    groupByField: "id", 
    groupStartOpen: "all", 
    showGroupSummary: true, 
    showGridSummary: false, 
    autoFetchData: true,
    dataSource: egui.order_lines_order_lines_list_Source,
        fields:[
            {name:"id", title:"ID",type:"text", required:false, editable:true, canEdit:false},
            {name:"name", title:"Name",type:"text", required:false, editable:true, canEdit:false},
            {name:"voucherdate", title:"Voucher Date",type:"date", required:false, editable:true , displayFormat:"toEuropeanShortDate", maskDateSeparator:".", textAlign:"left", useMask:true, cellChanged:function(record, newValue, oldValue, rowNum, colNum, grid){save_orderline(record, newValue, oldValue, rowNum, colNum, grid); return true;}},
         ],
});

Do you see anything in the code, that is preventing Smartclient from saving?

[Isomorphic]

See the FAQ about grids not updating.

[fes]

I can't find the FAQ. Could you please give me a link?