This application will read a list of Workers from a sequential access file named Workers.txt and display

those workers in a combo box on the GUI. New workers can be added to the existing list of Workers

via a textbox and button on the GUI. You have two options for adding the new workers to the

Workers.txt file. Option one would have you add an "Update" button to the GUI. Clicking the button

would write the contents of the combo box $($including the "new" workers$)$ to the Workers.txt file.

Option two, the more difficult option, has a bonus of $5$ points. This option requires that you use the

form Closing event and the MessageBox Show method to ask the user if they wish to update the

Workers.txt file. Use the Show method to present a "Yes" and $"$No$"$ button to the user. The

application will write the contents of the combo box $($including the "new" workers$)$ to the Workers.txt

file when the user clicks the "Yes" button. A click of the $"$No$"$ button would not update the file.

To create this application, pleases do the following.

Change form name and form file attributes as you have in all other programs. The form title

should be "Workers List".

Create a GUI with a with a drop$-$down combo box to display the workers and a textbox to enter

the name of a "new" worker. The combo box should have a title of "Workers List:" and the

text box should have the identifying label "New Worker:".

The GUI should have two buttons: an "Add" button that, when clicked, would add the name of

the worker in the "New Worker:" text box to the combo box and an "Exit" button, when

clicked will exit the application.

As mentioned in the overview, you have an option when creating this application. You may use

an "Update" button that, when clicked, will write the contents of the combo box to the

"Workers.txt$"$ file. Should you wish to earn extra credit, you can leave out the "Update"

button on the GUI using the "Exit" button click to ask the user via a Message Box, if they wish

to update the "Workers.txt$"$ file. A response of "Yes" would write the contents of the combo

box to the "Workers.txt$"$ file and close the application. A response of $"$No$"$ would close the

application without the file update.

In the code file $($Main Form.yb$),$ add comments with a file header describing the purpose of the

program, the name of the author $($you$)$ and the date.

Also add the complier options for STRICT, EXPLICIT and INFER.

Create an event handler for the form Load event. In that event handler, open the

"Workers.txt$"$ file, read each worker name and add that name to the combo box. Note: as

always, make sure the file exists before reading the file and close the file when all the names

have been read.

Add click event handler for the "Add" and optional "Update" buttons and code per the

requirements.

Add a click event handler for the "Exit" button that closes the application. If you choose to$,$ in

this event handler add the optional code to update the "Workers.txt$"$ file as specified in step