>>Combo in grid does not work too good in some situations, though simple task can be performed easily enough. I used to replace combo with textbox+button container in case of something more complicated.
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>I didn't say it can't be done, I just said that it is a PITA (or at least that was my intention) :-)

Sometimes, it's convenient. For example, user wants to change 1 field (picking from the short list) in 5 records. Is it always reasonable to force him editing each record separately?
For example, I have startup configuration screen in most applications. User may setup which page should open first in each application module (every module is a multi-page form).