Doubt in String.Replace()

Question

halo guys i have a code like this String s=Deepak is working in ACSL; s.Replace(acslProdigy); when i execute the above code the ACSL in String s is not getting replaced with Prodigy.Only when i do like below it gets replaced. s.Replace(ACSLProdigy); Also s.Contains(AcSl) returns false But how to achieve the previous one. Kindlly help me in achieving this. All replies are appreciated

Johnny GC · Answer

hi string.Replace() is a function thus you must assign it back to s: String s=Deepak is working in ACSL; s = s.Replace(acslProdigy);

Jan Montano · Answer

It's because those functions are case sensitive. You could first convert the string s to upper case then enter a key/value which is in upper case also. s.ToUpper() returns a copy and it will not in anyway modify the current value of s. static void Test2() { string s = Deepak is working in ACSL; bool result = s.ToUpper().Contains(ACSL); // = true }