C# / .NET - remove substring from string between indexes

using System;

​

public class Program

{

    static string RemoveSubstring(String text, int startIndex, int endIndex)

    {

        if (endIndex < startIndex)

        {

            startIndex = endIndex;

        }

​

        string a = text.Substring( 0, startIndex );

        string b = text.Substring( endIndex );

​

        return a + b;

    }

​

    public static void Main(string[] args)

    {

        // Usage example:

​

        //      index: 0    5 7   11 14

        //             |    | |   |  |

        string text = "This is my text";

​

        Console.WriteLine( RemoveSubstring(text, 0, 5));                 // is my text

        Console.WriteLine( RemoveSubstring(text, 5, 7));                 // This  my text

        Console.WriteLine( RemoveSubstring(text, 1, text.Length - 1));   // Tt

    }

}

is my text

This  my text

Tt