Batch edit "preloaded" items

[Ezequiel]

I have a detail grid where I want to display a specified number of items.
My master grid item have a Quantity columns that is 6, for example. And for detail items, in database, is set that I need to have 4 of type A, and 2 of type B.
and the user *MUST* fill all the 6 lines.

in controller I add 6 items to the list, 4 for type A, 2 for type B, for each type, while needed:

list.Add(new Editable
                    {
                        Id = -1,
                        MasterId = masterId,
                        Type = TypeCode
                    });

but when I try to save it, I got this error in jquery.min.js:

Unhandled exception at line 3, column 5099 in http://localhost:60455/Scripts/kendo/jquery.min.js

0x800a138f - Microsoft JScript runtime error: 'length' is null or not an object

Is there a way to work this out?

Thanks,
Ezequiel

[Daniel]

Hello Ezequiel,

I am not sure if I understand the exact scenario. Could you provide the full code you are using so I can check the setup?

Kind regards,
Daniel
the Telerik team