Chapter 3, Problem 7PC

The Upper West View Yacht club sponsors sailboat races every weekend for its fleet of SuperGee sailboats, and wants to determine which boat is the winner out of every four races. The scoring system is simple: a boat finishing in first position (first place) receives 1 point; a boat in second place receives 2 points, and so on. At the end of four races, the boats are ranked in ascending order by number of points, so the boats with the lowest points win.

Your task is to write an application that lets the user input the finishing position for each of three boats for four races. The program will then display the total points for each boat. Here are some specific requirements:

• Validate all text boxes to make sure the user enters integer values.
• Use a StatusStrip with a label to display an error message. When the user corrects an error and clicks the Calculate button again, clear any existing error message.
• Set TabIndex properties so that the focus will move between input fields in a logical manner.
• Do not allow the user to maximize or resize the form.

Figure 3-62 shows a sample of the program as the user is entering all valid values. In any single race, no place value should appear twice, although you currently do not have the programming tools to enforce this rule. For Race 1 in the sample, for example, the values 1, 2, and 3 each only appear once. HINT: to avoid an excessive amount of typing when coding this solution, rely on the copy and paste commands with the Windows clipboard. The key combinations are Ctrl-C (copy) and Ctrl-V (paste).

Figure 3-62 User input at runtime to the Sailboat Races program