Compare char case insensitive - CSharp System

CSharp examples for System:String Case

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Description

Compare char case insensitive

Demo Code


using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.Collections.Specialized;
using System.Collections;
using System.Text;
using System;/*from   w w w . j a  va2s.co  m*/

public class Main{
        /// <summary>
		/// Compare char case insensitive
		/// </summary>
		/// <param name="c1">C 1</param>
		/// <param name="c2">C 2</param>
		/// <returns>Bool</returns>
		public static bool CompareCharCaseInsensitive(char c1, char c2)
		{
			return char.ToLower(c1) == char.ToLower(c2);
			// Another way (slower):
			// return String.Compare("" + c1, "" + c2, true) == 0;
		} // CompareCharCaseInsensitive(c1, c2)
        /// <summary>
		/// Helper function to convert letter to lowercase. Could someone
		/// tell me the reason why there is no function for that in char?
		/// </summary>
		public static char ToLower(char letter)
		{
			return (char)letter.ToString().ToLower(
				CultureInfo.InvariantCulture)[0];
		} // ToLower(letter)
}

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