write a piece of code in C# that will not allow the user to enter numeric characters in the First Name textbox. The code should be written in the relevant event handler and a message box should pop up...

write a piece of code in C# that will not allow the user to enter numeric characters in the First Name textbox. The code should be written in the relevant event handler and a message box should pop up to show that the user has entered the wrong character.

Extracted text: Customer Details First Name Sumame Phone Number Submit Figure 2: Customer details form