Capitalizing words in a string using c#

Question

I need to take a string, and capitalize words in it. Certain words (\"in\", \"at\", etc.), are not capitalized and are changed to lower case if encountered. The first word s

Answer 1

Why not use ToTitleCase() first and then keep a list of applicable words and Replace back to the all-lower-case version of those applicable words (provided that list is small).

The list of applicable words could be kept in a dictionary and looped through pretty efficiently, replacing with the .ToLower() equivalent.