How can I check if a string is part of another string then replace it

Question

For example,string A = "your" string B ="YOU"

Result string A = "YOU YOUr".

I have no problem replacing the first word, but for the second word, i cant seem to get the "r" to append to the word.

var description = "you your" STRING[] keywords ={"YOU","a"}

return description.Split().Select(x => keywords.Contains(x) ? x.ToUpper() : x).ToString(" ");

so far, I can get "YOU your", but "YOU YOUr" is what I want.

Show what you have tried so far. Demonstrate that you have done your research before asking here. — rory.ap, Apr 26 '17 at 13:31
I don't even completely understand what the question is here. something that involves using IndexOf and Replace probably fixes whatever you're doing. — KSib, Apr 26 '17 at 16:40

score 0 · Accepted Answer · edited May 23 '17 at 12:10

If I undestand you correctly you could simply use string.Replace:

"you your".Replace("you", "YOU");

However, this is case sensitive. If you want to have it case insensitive, you could use regex:

string B = "YOU";
string A = "you your";
var regex = new Regex( B, RegexOptions.IgnoreCase );
var newA = regex.Replace( A, B);

If you want mulitple items to get replaced, simply do this for every replace item.

1 Answers1