String.Replace ignoring case

Question

I have a string called \"hello world\"

I need to replace the word \"world\" to \"csharp\"

for this I use:

string.Replace(\"World\", \"csharp\         


        

Answer 1

You could use a Regex and perform a case insensitive replace:

class Program
{
    static void Main()
    {
        string input = "hello WoRlD";
        string result = 
           Regex.Replace(input, "world", "csharp", RegexOptions.IgnoreCase);
        Console.WriteLine(result); // prints "hello csharp"
    }
}