F005. ScoreCalc

subject 클래스 함수를 하나 만들어준다.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace F005_ScoreCalc
{
    class Subject
    {
        public string Title { get; set; }
        public int Credit { get; set; }
        public string Grade { get; set; }

        public Subject() { }
        public Subject(string title, int credit)
        {
            this.Title = title;
            this.Credit = credit;
        }
    }
}

Form 클래스에 코드를 짜준다.

using System;
using System.Windows.Forms;

namespace F005_ScoreCalc
{
    public partial class Form1 : Form
    {
        private Subject[] subjects; //교과목 배열
        private TextBox[] txtTitles; //과목명 TextBox의 배열
        private TextBox[] txtCredits; //학점 TextBox의 배열
        private ComboBox[] grades; //성적 ComboBox의 배열
        public Form1()
        {
            InitializeComponent();

            subjects = new Subject[]
            {
                new Subject{Title="자료구조",Credit=3},
                new Subject("비주얼프로그래밍",3),
                new Subject("컴퓨터구조",3),
                new Subject("설계및프로젝트기본",2),
                new Subject("기업가정신과리더십",2),
                new Subject("중국어",2),
                new Subject("인체구조와기능",2),
                new Subject("중점교양",2)
            };

            txtTitles = new TextBox[10]
            {
                textBox1,textBox2,textBox3,textBox4,textBox5,
                textBox6,textBox7,textBox8,textBox9,textBox10
            };

            txtCredits = new TextBox[10]
            {
                txt11,txt12,txt13,txt14,txt15,
                txt16,txt17,txt18,txt19,txt20
            };

            grades = new ComboBox[10]
            {
                comboBox1,comboBox2,comboBox3,comboBox4,comboBox5,
                comboBox6,comboBox7,comboBox8,comboBox9,comboBox10
            };

            for (int i = 0; i < subjects.Length; i++)
            {
                txtTitles[i].Text = subjects[i].Title;
                txtCredits[i].Text = subjects[i].Credit.ToString(); //ToString 어떤 값도 문자열로 바꿔줌 
            }

            foreach (var cb in grades)
            {
                cb.Items.Add("A+");
                cb.Items.Add("A0");
                cb.Items.Add("B+");
                cb.Items.Add("B0");
                cb.Items.Add("C+");
                cb.Items.Add("C0");
                cb.Items.Add("D+");
                cb.Items.Add("D0");
                cb.Items.Add("F");
            }
        }

        private void btnClac_Click_1(object sender, EventArgs e)
        {
            Double totalScore = 0;
            int totalCresits = 0;

            for (int i = 0; i < grades.Length; i++)
            {
                //만약 학점 콤보박스의 값이 선택되었다면
                if (grades[i].SelectedItem != null)
                {
                    int crd = int.Parse(txtCredits[1].Text);
                    totalCresits += crd;
                    totalScore += crd * GetGrade(grades[1].SelectedItem.ToString());
                }
            }
            txtResult.Text = (totalScore / totalCresits).ToString("0.00");
        }

        private double GetGrade(string v)
        {
            if (v == "A+") return 4.5;
            else if (v == "A0") return 4.0;
            else if (v == "B+") return 3.5;
            else if (v == "B0") return 3.0;
            else if (v == "C+") return 2.5;
            else if (v == "C0") return 2.0;
            else if (v == "D+") return 1.5;
            else if (v == "D0") return 1.0;
            else return 0;

        }
    }
}