Use | to combine different case : Regular Expression : Development Class C# Source Code

Use | to combine different case

    
 

using System;
using System.Text.RegularExpressions;


class RXOptionsApp {
    static void Main(string[] args) {
        Regex r = new Regex("in|In|IN|iN");
        string s = "The KING Was In His Counting House";
        MatchCollection mc = r.Matches(s);
        for (int i = 0; i < mc.Count; i++) {
            Console.WriteLine("Found '{0}' at position {1}",mc[i].Value, mc[i].Index);
        }
    }
}

 
    
   
  
   

Related in same category :
• Multiple different delimiters
• Single space split
• Multiple spaces, using \"[\\s]+\"
• Single spaces, using ()
• Single spaces, using new Regex("( )")
• Position and index
• Regex and letter case
• ((an)|(in)|(on))
• Gr(a|e)y
• Define groups 'ing', 'in', 'n'
• Leading space
• Proper case match
• IP address
• Multiple spaces, using \" \"
• Use regular expression to replace chars
• Use regular to replace strings
• Use regular to replace word
• Use regular expression to replace first 3 digits
• Use regular to split string
• Validate first name and last name
• Validate address