The Program in C# Program to Remove all Vowels from Given String is given below:

using System;

namespace RemoveVowels
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello Codeauri Family. enter a string here to remove all Vowels: ");
            string input = Console.ReadLine();

            string vowels = "aeiouAEIOU";
            string output = "";

            foreach (char c in input)
            {
                if (!vowels.Contains(c))
                {
                    output += c;
                }
            }

            Console.WriteLine("Okay, the result is: " + output);
        }
    }
}

Output:

Hello Codeauri Family. enter a string here to remove all Vowels: learning shouldnot be stopped
Okay, the result is: rnng shldnt b stppd

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Here are the step by step execution of above program:

1. The first line “using System;” imports the System namespace, which contains the Console class used for input and output.
2. The code defines a namespace called “RemoveVowels” that contains a class named “Program”.
3. In the “Program” class, there is a “Main” method that is the entry point of the program.
4. Within the “Main” method, it outputs a prompt to the user asking them to enter a string to remove all vowels.
5. It then reads the user’s input using the “ReadLine” method of the Console class and stores it in the “input” variable.
6. It declares a string variable “vowels” containing all the lowercase and uppercase vowels.
7. An empty string “output” is declared to store the result.
8. The program then uses a foreach loop to iterate through each character in the “input” string.
9. Inside the loop, it checks if the current character is not in the “vowels” string using the “Contains” method.
10. If the character is not a vowel, it is added to the “output” string.
11. Finally, the program outputs the “output” string to the user, which contains the original input string with all vowels removed.