Convert String To camelCase from TitleCase C#

Question

I have a string that I converted to a TextInfo.ToTitleCase and removed the underscores and joined the string together. Now I need to change the first and only the first charact

Answer 1

Adapted from Leonardo's answer:

static string PascalCase(string str) {
  TextInfo cultInfo = new CultureInfo("en-US", false).TextInfo;
  str = Regex.Replace(str, "([A-Z]+)", " $1");
  str = cultInfo.ToTitleCase(str);
  str = str.Replace(" ", "");
  return str;
}

Converts to PascalCase by first adding a space before any group of capitals, and then converting to title case before removing all the spaces.