Hello,
I found that when you set a column's formatter property to “select” and recieve a NULL value from the server, it displays “undefined“. There should be an option to set what to display in those cases, because in my case, what I want it to display is just an empty string.
By the way, I can't set an option like this (which I use to set a NULL value) if I try to pass the “editoptions”:”value” parameter like an object:
I think the drop-down list should automatically display an empty option as above when the “editrules”:”required” option is false.
—EDIT—
I thought another possibility. Maybe adding an afterFormat event, which fires after aplying the formatter to the grid. This way I can change whatever I don't like.
Thanks, see you 
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