Kendo grid column Combobox shows wrong text

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Kendo

Kendo grid has two kendo combo boxes as columns(editor control).. Second combo will be loaded based on first combo value selection. So my second combo datasources are dynamically changed when user selects first combo values..

Example :
Mode is First combo, Class is second combo.. Train mode has 3 class, First class(10), second class(20), sleeper class(30). Flight mode has 2 classes, Economic(10), Business(20).. () -> datavalue

When I add multiple rows, the last datasource loaded in second combo is shown in the entire second combo columns if values are matched. If values are not mached it shows it's actual value.

I need to show exact text of the second combo values in grid...