I cannot find the programming solution for Chapter 9 Exercise 3 from page 421 of Programming with Microsoft Visual Basic 2017, 8th Edition.

Can you help?

Create a Windows Forms application. Use the following names for the project and solution, respectively: Customer Project and Customer Solution. Save the application in the VB2017\Chap09 folder.

a. Create the interface shown in Figure 9-36. The File menu should have an Exit option. Change the lblMessage controls Visible property to False.

b. Code the File menus Exit option.

c. The lblMessage control should disappear when a change is made to any of the text boxes. Create one event-handling Sub procedure to handle this task.

d. Code each text boxs Enter event procedure.

e. The Save button should save the customer information to a sequential access file named customers.txt. Before saving the information, be sure to verify that all of the text boxes contain data; display an appropriate message if at least one text box is empty. Use the following format when saving the information: Save the customers first name and last name, separated by a space character, on the same line. Then, on the next line, save the customers address, followed by a comma, a space character, the city name, a comma, a space character, and the ZIP code. A blank line should separate each customers information from the next customers information.

Figure 9-36 shows a sample of the sequential access file.

f. Save the solution and then start and test the application. Stop the application and verify the contents of the customers.txt file.

Figure 9-36 Interface and sample file for Exercise 3

Customer Information File First: Last: Address: ZIP: City: Save Information saved. . Ib!Message