Is a char in a range: Case Insensitive

   
using System;
using System.Data;
using System.Text.RegularExpressions;
using System.Text;
class Class1{
        static void Main(string[] args){
            Console.WriteLine(IsInRangeCaseInsensitive('c', 'a', 'G'));
            Console.WriteLine(IsInRangeCaseInsensitive('c', 'a', 'c'));
            Console.WriteLine(IsInRangeCaseInsensitive('c', 'g', 'g'));
            Console.WriteLine(IsInRangeCaseInsensitive((char)32, 'a', 'b'));
        }
    public static bool IsInRangeCaseInsensitive(char testChar, char startOfRange, char endOfRange)
    {
      testChar = char.ToUpper(testChar);
      startOfRange = char.ToUpper(startOfRange);
      endOfRange = char.ToUpper(endOfRange);
      
      if (testChar >= startOfRange && testChar <= endOfRange)
      {
        // testChar is within the range
        return (true);
      }
      else
      {
        // testChar is NOT within the range 
        return (false);
      }
    }

}

1.	Get char type: control, digit, letter, number, punctuation, surrogate, symbol and white space
2.	Determining If A Character Is Within A Specified Range
3.	Is a char in a range Exclusively
4.	Using Char
5.	Escape Characters
6.	A stack class for characters
7.	Encode or decode a message
8.	Demonstrate several Char methods
9.	Demonstrate the ICharQ interface: A character queue interface
10.	A set class for characters
11.	A queue class for characters
12.	IsDigit, IsLetter, IsWhiteSpace, IsLetterOrDigit, IsPunctuation
13.	Char: Get Unicode Category
14.	Char.IsLowSurrogate(), IsHighSurrogate(), IsSurrogatePair() method
15.	demonstrates IsSymbol.
16.	Buffer for characters
17.	Test an input character if it is contained in a character list.
18.	Is vowel char
19.	Filter letter and digit
20.	First Char Upper

Is a char in a range: Case Insensitive : Char « Data Types « C# / C Sharp

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