C# WPF 프로그래밍 계산기(Calculator) 프로그램 만들기 - 기능 추가(X^2, 1/X, Delete, Sqrt 버튼 추가)

안녕하세요, 츄르 사려고 코딩하는 집사, 코집사입니다.

C# WPF 를 이용한 계산기 프로그램 만들기 최종에 이어 X^2, 1/X, Delete, Sqrt 버튼을 추가하였습니다.

 

 

1. XAML 소스 코드

 

<Window x:Class="cal.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:local="clr-namespace:cal"

mc:Ignorable="d"

Title="MainWindow" Height="700" Width="406.745">

<Grid HorizontalAlignment="Left" Width="404" Margin="0,0,-5,-1">

<Grid.RowDefinitions>

<RowDefinition Height="200"/>

<RowDefinition Height="75"/>

<RowDefinition Height="75"/>

<RowDefinition Height="75"/>

<RowDefinition Height="75"/>

<RowDefinition Height="75"/>

<RowDefinition Height="75"/>

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="100"/>

<ColumnDefinition Width="100"/>

<ColumnDefinition Width="100"/>

<ColumnDefinition Width="100"/>

</Grid.ColumnDefinitions>

<Label x:Name="resultLabel"

Content="0"

Grid.ColumnSpan="4"

Grid.Row="0"

HorizontalContentAlignment="Right"

VerticalContentAlignment="Bottom"

FontSize="100"/>

 

<!-- 숫자 버튼 0 -->

<Button x:Name="ZeroButton"

Grid.Column="0"

Grid.Row="6"

Content="0"

Margin="5,5,5,-13"

Grid.ColumnSpan="2"

Foreground="white"

Background="Gray"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 1 -->

<Button x:Name="OneButton"

Grid.Column="0"

Grid.Row="5"

Content="1"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 2 -->

<Button x:Name="TwoButton"

Grid.Column="1"

Grid.Row="5"

Content="2"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 3 -->

<Button x:Name="ThreeButton"

Grid.Column="2"

Grid.Row="5"

Content="3"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 4 -->

<Button x:Name="FourButton"

Grid.Column="0"

Grid.Row="4"

Content="4"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 5 -->

<Button x:Name="FiveButton"

Grid.Column="1"

Grid.Row="4"

Content="5"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 6 -->

<Button x:Name="SixButton"

Grid.Column="2"

Grid.Row="4"

Content="6"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 7 -->

<Button x:Name="SevenButton"

Grid.Column="0"

Grid.Row="3"

Content="7"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 8 -->

<Button x:Name="EightButton"

Grid.Column="1"

Grid.Row="3"

Content="8"

Foreground="white"

Background="Gray"

FontSize="30"

Margin="5,5,5,5"

Click="numberButton_Click"/>

 

<!-- 숫자 버튼 9 -->

<Button x:Name="NineButton"

Grid.Column="2"

Grid.Row="3"

Content="9"

Foreground="white"

Background="Gray"

Margin="5,5,5,5"

FontSize="30"

Click="numberButton_Click"/>

 

<!--연산버튼 AC-->

<Button x:Name="AcButton"

Grid.Column="0"

Grid.Row="2"

Content="AC"

FontSize="30"

Margin="5,5,5,5"

Click="AcButton_Click"/>

 

<!-- 연산버튼 Plus/Minus -->

<Button x:Name="PlusMinusButton"

Grid.Column="1"

Grid.Row="2"

Content="+/-"

FontSize="30"

Margin="5,5,5,5"

Click="PlusMinusButton_Click"/>

 

<!-- 연산버튼 Percent -->

<Button x:Name="PercentButton"

Grid.Column="2"

Grid.Row="2"

Content="%"

FontSize="30"

Margin="5,5,5,5"

Click="PercentButton_Click"/>

 

<!-- 연산버튼 Divide -->

<Button x:Name="DivideButton"

Grid.Column="3"

Grid.Row="2"

Content="/"

Background="Green"

Margin="5,5,5,5"

FontSize="30"

Click="operationButton_Click"/>

 

<!-- 연산버튼 Multiple -->

<Button x:Name="MultipleButton"

Grid.Column="3"

Grid.Row="3"

Content="*"

Background="Green"

Margin="5,5,5,5"

FontSize="30"

Click="operationButton_Click"/>

 

<!-- 연산버튼 Minus -->

<Button x:Name="MinusButton"

Grid.Column="3"

Grid.Row="4"

Content="-"

Background="Green"

Margin="5,5,5,5"

FontSize="30"

Click="operationButton_Click"/>

 

<!-- 연산버튼 Plus -->

<Button x:Name="PlusButton"

Grid.Column="3"

Grid.Row="5"

Content="+"

Background="Green"

Margin="5,5,5,5"

FontSize="30"

Click="operationButton_Click"/>

 

<!-- 연산버튼 Dot -->

<Button x:Name="DotButton"

Grid.Column="2"

Grid.Row="6"

Content="."

Foreground="white"

Background="Gray"

FontSize="30"

Margin="5,5,5,-13"

Click="DotButton_Click"/>

 

<!-- 연산버튼 Equl -->

<Button x:Name="EqulButton"

Grid.Column="3"

Grid.Row="6"

Content="="

Background="Green"

Margin="5,5,5,-13"

FontSize="30"

Click="EqulButton_Click"/>

 

<!-- 연산버튼 Delete -->

<Button x:Name="DelButton"

Grid.Column="0"

Grid.Row="1"

Content="Del"

Margin="5,5,5,5"

FontSize="30"

Click="ExtraFunction_Click"/>

 

<!-- 연산버튼 Sqrt -->

<Button x:Name="SqrtButton"

Grid.Column="1"

Grid.Row="1"

Content="Sqrt"

Margin="5,5,5,5"

FontSize="30"

Click="ExtraFunction_Click"/>

 

<!-- 연산버튼 X^2 -->

<Button x:Name="XXButton"

Grid.Column="2"

Grid.Row="1"

Content="X^2"

Margin="5,5,5,5"

FontSize="30"

Click="ExtraFunction_Click"/>

 

<!-- 연산버튼 1/x -->

<Button x:Name="reverseXButton"

Grid.Column="3"

Grid.Row="1"

Content="1/x"

Margin="5,5,5,5"

FontSize="30"

Click="ExtraFunction_Click"/>

</Grid>

</Window>

 

 

 

2. 이벤트 함수

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

 

namespace cal

{

/// <summary>

/// MainWindow.xaml에 대한 상호 작용 논리

/// </summary>

public partial class MainWindow : Window

{

double lastNumber;

SelectedOperator selectedOperator;

double result;

 

public MainWindow()

{

InitializeComponent();

//각 버튼에 대한 이벤트 함수를 안만들고 아래와 같이 해도 상관 없음.

//AcButton.Click += AcButton_Click;

}

public enum SelectedOperator

{

Addition,

Subtraction,

Multiplication,

Division

}

 

public class SimpleMath

{

public static double Add(double n1, double n2)

{

return n1 + n2;

}

public static double Subtract(double n1, double n2)

{

return n1 - n2;

}

public static double Multiple(double n1, double n2)

{

return n1 * n2;

}

public static double Divide(double n1, double n2)

{

return n1 / n2;

}

}

 

// 숫자 버튼 이벤트 함수

private void numberButton_Click(object sender, RoutedEventArgs e)

{

int selectedValue = 0;

if (sender == ZeroButton)

{

selectedValue = 0;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == OneButton)

{

selectedValue = 1;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == TwoButton)

{

selectedValue = 2;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == ThreeButton)

{

selectedValue = 3;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == FourButton)

{

selectedValue = 4;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == FiveButton)

{

selectedValue = 5;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == SixButton)

{

selectedValue = 6;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == SevenButton)

{

selectedValue = 7;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == EightButton)

{

selectedValue = 8;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

if (sender == NineButton)

{

selectedValue = 9;

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = selectedValue.ToString();

}

else

{

resultLabel.Content += selectedValue.ToString();

}

}

}

 

// Plus, Minus, Multiple, Divide 4개가 있는 이벤트 함수

private void operationButton_Click(object sender, RoutedEventArgs e)

{

lastNumber = double.Parse(resultLabel.Content.ToString());

resultLabel.Content = "0";

 

if(sender == PlusButton)

{

selectedOperator = SelectedOperator.Addition;

}

 

if (sender == MinusButton)

{

selectedOperator = SelectedOperator.Subtraction;

}

if (sender == MultipleButton)

{

selectedOperator = SelectedOperator.Multiplication;

}

if (sender == DivideButton)

{

selectedOperator = SelectedOperator.Division;

}

}

 

private void ExtraFunction_Click(object sender, RoutedEventArgs e)

{

double lastNumber;

if (sender == DelButton)

{

if(resultLabel.Content.ToString().Length != 1)

{

resultLabel.Content = resultLabel.Content.ToString().Substring(0, resultLabel.Content.ToString().Length - 1);

}

else

{

resultLabel.Content = "0";

}

}

if (sender == SqrtButton)

{

if (double.TryParse(resultLabel.Content.ToString(), out lastNumber))

{

lastNumber = Math.Sqrt(lastNumber);

resultLabel.Content = lastNumber.ToString();

}

}

if (sender==XXButton)

{

if(double.TryParse(resultLabel.Content.ToString(), out lastNumber))

{

lastNumber = lastNumber * lastNumber;

resultLabel.Content = lastNumber.ToString();

}

}

if (sender==reverseXButton)

{

 

if (double.TryParse(resultLabel.Content.ToString(), out lastNumber))

{

lastNumber = 1 / lastNumber;

resultLabel.Content = lastNumber.ToString();

}

}

}

// AC 버튼 클릭

private void AcButton_Click(object sender, RoutedEventArgs e)

{

resultLabel.Content = "0";

}

 

// PlusMinus 버튼 클릭

private void PlusMinusButton_Click(object sender, RoutedEventArgs e)

{

double lastNumber;

if(double.TryParse(resultLabel.Content.ToString(), out lastNumber))

{

lastNumber = lastNumber * -1;

resultLabel.Content = lastNumber.ToString();

}

}

 

// Percent 버튼 클릭

private void PercentButton_Click(object sender, RoutedEventArgs e)

{

double lastNumber;

if (double.TryParse(resultLabel.Content.ToString(), out lastNumber))

{

lastNumber = lastNumber * 0.01;

resultLabel.Content = lastNumber.ToString();

}

}

 

// Dot 버튼 클릭

private void DotButton_Click(object sender, RoutedEventArgs e)

{

Boolean a;

a = resultLabel.Content.ToString().Contains(".");

if (resultLabel.Content.ToString() == "0")

{

return;

}

else

{

if(a==false)

{

resultLabel.Content += ".";

}

}

}

 

// Equl 버튼 클릭

private void EqulButton_Click(object sender, RoutedEventArgs e)

{

double newNumber;

newNumber = double.Parse(resultLabel.Content.ToString()); // 연산자 후 숫자 저장

 

switch(selectedOperator)

{

case SelectedOperator.Addition:

result = SimpleMath.Add(lastNumber, newNumber);

break;

 

case SelectedOperator.Subtraction:

result = SimpleMath.Subtract(lastNumber, newNumber);

break;

 

case SelectedOperator.Multiplication:

result = SimpleMath.Multiple(lastNumber, newNumber);

break;

 

case SelectedOperator.Division:

result = SimpleMath.Divide(lastNumber, newNumber);

break;

}

resultLabel.Content = result.ToString();

}

 

// 숫자 0 버튼 클릭

/*private void ZeroButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "0";

}

else

{

resultLabel.Content += "0";

}

}

 

// 숫자 1 버튼 클릭

private void OneButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "1";

}

else

{

resultLabel.Content += "1";

}

}

 

// 숫자 2 버튼 클릭

private void TwoButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "2";

}

else

{

resultLabel.Content += "2";

}

}

 

// 숫자 3 버튼 클릭

private void ThreeButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "3";

}

else

{

resultLabel.Content += "3";

}

}

 

// 숫자 4 버튼 클릭

private void FourButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "4";

}

else

{

resultLabel.Content += "4";

}

}

 

// 숫자 5 버튼 클릭

private void FiveButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "5";

}

else

{

resultLabel.Content += "5";

}

}

 

// 숫자 6 버튼 클릭

private void SixButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "6";

}

else

{

resultLabel.Content += "6";

}

}

 

// 숫자 7 버튼 클릭

private void SevenButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "7";

}

else

{

resultLabel.Content += "7";

}

}

 

// 숫자 8 버튼 클릭

private void EightButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "8";

}

else

{

resultLabel.Content += "8";

}

}

 

// 숫자 9 버튼 클릭

private void NineButton_Click(object sender, RoutedEventArgs e)

{

if (resultLabel.Content.ToString() == "0")

{

resultLabel.Content = "9";

}

else

{

resultLabel.Content += "9";

}

}

*/

 

/*

// Divide 버튼 클릭

private void DivideButton_Click(object sender, RoutedEventArgs e)

{

 

}

 

// Multiple 버튼 클릭

private void MultipleButton_Click(object sender, RoutedEventArgs e)

{

 

}

 

// Minus 버튼 클릭

private void MinusButton_Click(object sender, RoutedEventArgs e)

{

 

}

 

// Plus 버튼 클릭

private void PlusButton_Click(object sender, RoutedEventArgs e)

{

 

}

*/

}

}