As seen in the video, the program opens with the first part of the screen. The user needs to fill out the text boxes. The first text box is for user name, which only accepts lowercase and the second text box accepts user number. Blanks and invalid data are not accepted. The user name must be lowercase and any other characters must be suppressed. You need to use keychar as you see in the materials. The user number accepts numbers only. If an invalid character is entered, an error provider will be displayed. Once a valid character is entered, the error provider will disappear. The user name must match with a user number. For example, mike has a user number of XXXXXXXXXXand nancy has a user number of XXXXXXXXXXThe user number is limited to 7 digits. You can limit the number of characters by setting the MaxLength property of the textbox. Have at least three sets of user names and user numbers. The menu will be displayed upon successful login. Error Provider will be displayed as seen in the video. If the user name and the user number are valid, the second part of the screen will be displayed.
The Combo box is designed for the store on available pizzas. It will be displaying the pizzas’ images and their prices. The user can search the items on sale as well. You will be an InputBox as you used it in the last lab. The validation is very important. You need to catch blank, cancel and invalid input. The user can type lowercase, uppercase, and the combination of both. You will be setting a loop here so if the user wants to continue searching the Combobox, the loop continues. The user also can sort the items within the Combobox in alphabetical order.
The next group box is designed for ordering pizzas. The user can type valid pizzas’ names and it will be added to the order list box. The textbox only accepts uppercase and all other characters will be suppressed. You notice the image of the pizzas, their prices, and the size will be added to list boxes and the labels. Blanks, invalid pizza names, and duplicate entries will be caught. The user can remove items from the Listbox by selecting them. See the video for my explanations. Note that the images have
The Clear All button will reset the form. You need to reset all fields, not just hiding the second part of the screen.
The menu items will call the existing methods that you used within the form.
If you want, you can block pasting into the textbox as well but that is not required.
Note: removing both fields, the price and pizza's name at the same time is optional (Extra Credit)