Combobox virtualization

[Mahmut]

Hello,

I'm experiencing a problem with valuemapper:

var ds = {   pageSize: 20, 

                  transport: {

                             read: function (options) {

                                options.success(aLocalArrayWithGuidPrimaryKey);
                            }
                        }
                    };

$("#id").kendoComboBox({
                            ...
                            virtual: {
                                itemHeight: 26,
                                valueMapper: function(options) {
                                    options.success([options.value || 0]);// "Cannot read property '...' of undefined" error at this line
                                }
                            },
                            height: 200,
                            ...
                            dataSource: ds
                        })

I can't find any local data virtualization sample with Guid primary key.

Any recommendation?

Thank you very much.

Mahmut

 

[Mahmut]

Sorry for inadequate information,
This problem occurs when I use the valuemapper in a kendo-grid cell editor.
(2015 Q3 version)
Thanks...
Mahmut

[Kiril Nikolov]

Hello Mahmut,

The valueMapper is a function that should return the indexes of the items that were requested by the widget, but not available in the dataSource. In your case you are returning. In your case you need to provide the valid IDs in the response which I don't believe is the case. Please check the following documentation that would help you:

http://docs.telerik.com/kendo-ui/controls/editors/combobox/virtualization#configuration-valueMapper

Regards,
Kiril Nikolov
Telerik