C#

arkiboys wrote:

How do I change my existing code to firstchild?
foreach (XmlNode valueNode in doc.ChildNodes[0].ChildNodes[0].ChildNodes)

String oldString = "I have a Computer Box on my desk";
String searchTerm = "computer box";
String replacement = "Computer System";
// case insensitive search
int idx = oldString.IndexOf(searchTerm, StringComparison.CurrentCultureIgnoreCase);
if (idx != -1) {
  // split to remove the undesired substring
  String frontEnd = oldString.Substring(0, idx);
  String backEnd = oldString.Substring(idx + searchTerm.Length);
  // recombine with the replacement string
  String newString = frontEnd + replacement + backEnd;
  Console.WriteLine(oldString);
  Console.WriteLine(newString);
} else {
  Console.WriteLine("Search term not found: {0}", searchTerm);
}