10-152-311 - Object-Oriented Programming 1

Arthur is looking at the details of his report card. In addition to earlier classes, he has now completed OOP1 with a B, and his GPA needs to be recalculated.

Create the new class and buttons as shown.

Implement the changes specified in the following UML class diagram.

Create any button(s) and button click event handler(s) in the WPF window designer (if specified in the class diagram).

1. Open the MainWindow's designer by double-clicking on the file MainWindow.xaml (not MainWindow.xaml.cs) in the Solution Explorer.
2. Navigate to the Toolbox (if hidden, restore it by clicking View | Toolbox).
3. Expand the Common WPF Controls section of the Toolbox.
4. Click the Button control in the Toolbox, making it the active control type.
5. Place a new button on the window by clicking on the background of the window with the Button control selected per "step d" above.
6. Position the new button immediately beneath and aligned with the left of the existing button(s) (it will snap in place, showing a recommended margin in red).
7. Stretch the button to be the same width as the previous button(s) (it will snap to the correct width).
8. Navigate to the Properties Window (if hidden, restore it by clicking View | Properties Window).
9. Ensure that the Properties Window is in "property mode" (click on its wrench icon)
10. Ensure that the new button is the currently-focused control.
11. Enter a Height in the Properties Window (under the Layout section) of 23.
12. Enter a Name in the Properties Window as specified in the class diagram.
13. Enter Content in the Properties Window as a friendly version of the name (e.g. "newZooButton" as "New zoo").
14. Change the Properties Window to "event mode" (click on its lightning bolt icon)
15. Double-click in the Click event's text box, which will:
    1. Create an event handler for the button.
    2. Navigate to code view. (You can alternately navigate to code view by right-clicking on the designer and selecting "View Code", or by pressing F7).

1. When creating classes be sure to:
   1. Ensure the class in the root namespace. This can be done in one of two ways. Either by adding the class in the project, i.e. scenario, or by adding the class to the business classes folder and removing the ".Business_Classes" designation from the namespace.
   2. insert the following line of code immediately above the class definition:
      [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.StyleCop.CSharp.MaintainabilityRules", "SA1401:FieldsMustBePrivate", Justification = "Encapsulation not yet taught.")]
2. Open the main window (MainWindow.xaml) in designer mode (right-click and click "View Designer" or press Shift-F7 to go to designer mode).

Instantiate the objects and set their field values as specified in the following UML object diagram.

Within the newGradebookButton click event handler use the following code snippet as your guide to writing the code.

On the two additional buttons, write code to perform the following:

• calculateCurrentStudentGpaButton: Arthur is looking at the details of his report card. In addition to earlier classes, he has now completed OOP 1 with a B. Calculate the current student's cumulative grade-point average, setting the CumulativeGpa on the student's transcript object. Use the zoo's animal weight button as a guide.
• findOop1LetterGradeButton: Find the letter grade of the course named "OOP 1" from the current student's transcript. Use a loop, breaking out of the loop once the correct object is found. After the loop, if an object was found, store the letter grade of the course that was found in a local variable. Use the zoo's guest age button as a guide.

1. Build your program - Eliminate compiler errors and warnings
2. Debug/Test your program - Set breakpoints, step through code, monitor values
3. Make your code StyleCop-compliant
4. Close your Visual Studio solution.
5. Compress your Visual Studio solution to a zip file.
6. Submit the zip file via Blackboard.