In this module, you have been working with individual characters and sets of characters within strings. For this assignment, you will be creating an application that lets the user enter a 10-character telephone number in the format XXX-. Many companies use telephone numbers like 800-FLOWERS, so the number is easier for their customers to remember. On a phone, the alphabetic letters are mapped to the numbers on the keypad in the following fashion (1 & 0 have no corresponding letters):
Letter Number on Phone
A, B, C 2
D, E, F 3
G, H, I 4
J, K, L 5
M, N, O 6
P, Q, R, S 7
T, U, V 8
W, X, Y, Z 9
Your program should meet the following objectives:
The application should display the telephone number without any alphabetic characters that appeared in the original translation to their numeric equivalent. For example, if the user enters 800-FLOWERS, the application should display 800-3569377.
Make a working version of this program in C#.
Software is Visual Studio 2019 C# Windows Forms App ( A project Template Creating a. NET Windows Forms).