I have a table column, where data should be entered through a dropbox. Depending on selection an additional value should be asked.
What is the best way to display this value in the table?
I'd leave some space out for it:
(Balsamiq didn't want to catch the € sign for some reasons...)
This way the size of the grid doesn't change, and even without an additional label it's obvious what's the input is for (esp. if you add a currency sign at the end)