제 6강 윈도우 프로그램 만들기

1. WinForm 만들기

• 윈폼(WinForms)은 윈도우즈 폼(Windows Forms)의 단축어이며, 윈도우즈 기반 사용자 인터페이스(UI, User Interface) 애플리케이션을 만들기 위한 환경

1. 순서: 새프로젝트 - windows Form 앱(.NET Framework) - 도구상자 - Button, label - 속성 변경 - Click 이벤트 - 실행 

2. 로그인 창 만들기

• 윈폼을 이용하여 로그인 창을 만들어 보는 실습과정

코드

namespace loginTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void label1_Click(object sender, EventArgs e)
        {
            string userId = id.Text;
            string userPassword = passward.Text;

            if(userId.Equals("MyId")&& userPassword.Equals("MyPassword"))
            {
                MessageBox.Show("로그인에 성공했습니다.", "로그인");
            }
            else
            {
                MessageBox.Show("로그인에 실패했습니다.", "로그인");

            }
        }
    }
}

3.  숫자 맞추기 게임 만들기

• 랜덤으로 정해진 숫자를 정해진 횟수 안에 맞추는 게임 실습

코드

namespace FindNum
{
    public partial class Form1 : Form
    {
        private int findNumber = 0;
        private int chance = 0;

        public Form1()
        {
            InitializeComponent();
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void ButtonStart_Click(object sender, EventArgs e)
        {
            var rand = new Random();
            findNumber = rand.Next(1, 21);
            chance = 10;
            display.Text = "맞출 숫자를 입력하세요";
        }

        private void ButtonInput_Click(object sender, EventArgs e)
        {
            int inputNumber = Int32.Parse(textBox1.Text);

            if(inputNumber == findNumber)
            {
                display.Text = "승리했습니다.";
            }
            else
            {
                chance--;
                display.Text = "기회는 " + chance + " 번 남았습니다.";
            }
        }
    }
}

4.  계산기 만들기

코드

namespace Calculation
{
    public partial class Form1 : Form
    {
        enum Operators
        {
            None,
            Add,
            Subtract,
            Multiply,
            Divide,
            Result
        }

        Operators currentOperator = Operators.None;
        Boolean operatorChangeFlag = false;
        int firstOperand = 0;
        int secondOperand = 0;


        public Form1()
        {
            InitializeComponent();
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {

        }

        private void ButtonAnser_Click(object sender, EventArgs e)
        {
            secondOperand = Int32.Parse(display.Text);
            if(currentOperator == Operators.Add)
            {
                firstOperand += secondOperand;
                display.Text = firstOperand.ToString();
            }
            else if(currentOperator == Operators.Subtract)
            {
                firstOperand -= secondOperand;
                display.Text = firstOperand.ToString();
            }
            else if (currentOperator == Operators.Multiply)
            {
                firstOperand *= secondOperand;
                display.Text = firstOperand.ToString();
            }
            else if (currentOperator == Operators.Divide)
            {
                if(secondOperand == 0)
                {
                    display.Text = "0으로 나눌 수 없습니다.";
                }
                else
                {
                    firstOperand /= secondOperand;
                    display.Text = firstOperand.ToString();
                }
            }
        }

        private void ButtonPlus_Click(object sender, EventArgs e)
        {
            firstOperand = Int32.Parse(display.Text);
            currentOperator = Operators.Add;
            operatorChangeFlag = true;
        }

        private void ButtonMinuse_Click(object sender, EventArgs e)
        {
            firstOperand = Int32.Parse(display.Text);
            currentOperator = Operators.Subtract;
            operatorChangeFlag = true;
        }

        

        private void ButtonMultiy_Click(object sender, EventArgs e)
        {
            firstOperand = Int32.Parse(display.Text);
            currentOperator = Operators.Multiply;
            operatorChangeFlag = true;
        }

        private void ButtonDivision_Click(object sender, EventArgs e)
        {
            firstOperand = Int32.Parse(display.Text);
            currentOperator = Operators.Divide;
            operatorChangeFlag = true;
        }

        private void ButtonZero_Click(object sender, EventArgs e)
        {
            if(operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "0";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonOne_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "1";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonTwo_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "2";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonThree_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "3";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonFour_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "4";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonFive_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "5";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonSix_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "6";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonSeven_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "7";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonEight_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "8";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonNine_Click(object sender, EventArgs e)
        {
            if (operatorChangeFlag == true)
            {
                display.Text = "";
                operatorChangeFlag = false;
            }
            string strNumber = display.Text += "9";
            int intNumber = Int32.Parse(strNumber);
            display.Text = intNumber.ToString();
        }

        private void ButtonClear_Click(object sender, EventArgs e)
        {
            firstOperand = 0;
            secondOperand = 0;
            currentOperator = Operators.None;
            display.Text = "0";
        }
    }
}