MainWindowの代わりに他のクラスでCalculationWindowを使用するには？

Question

私は単純なWPF電卓アプリを書いています。今は追加、差し引きなどの基本的な機能のいくつかを実装しています。私のコードはひどく見え、1つのクラスはすべてのものに対応しています。私はボタンのクリックイベントメソッドの中にあるコードのいくつかを他のクラスやメソッドに抽出するのに苦労していましたが、結果はまったくありませんでした。私はSOLIDのpriciplesを知っていますが、初心者としては、特にSingle Resposability Principleを実行する際にいくつかの困難があります。 CalculationWindowはTextBox名です。あなたが他のクラスにCalculationWindow.Text = CalculationWindow.Text + "8"を抽出する方法を私に教えることができれば、私は感謝します。

あなたが好きなメインウィンドウ（のコンストラクタ）に依存関係として他のクラスを注入することができ、これらの方法のいくつか

namespace CalculatorApplication 
{ 
    public partial class MainWindow : Window 
    { 
     private double inputFirstDigit; 
     public string actionOperator;` 

     public MainWindow() 
     { 
      InitializeComponent(); 
     } 

     private void NumberOneButton_Click(object sender, RoutedEventArgs e) 
     { 
      CalculationWindow.Text = CalculationWindow.Text + "1"; 
     } 

     private void NumberTwoButton_Click(object sender, RoutedEventArgs e) 
     { 
      CalculationWindow.Text = CalculationWindow.Text + "2"; 
     } 

     private void NumberThreeButton_Click(object sender, RoutedEventArgs e) 
     { 
      CalculationWindow.Text = CalculationWindow.Text + "3"; 
     } 

     private void NumberFourButton_Click(object sender, RoutedEventArgs e) 
     { 
      CalculationWindow.Text = CalculationWindow.Text + "4"; 
     } 

     private void NumberFiveButton_Click(object sender, RoutedEventArgs e) 
     { 
      CalculationWindow.Text = CalculationWindow.Text + "5"; 
     } 

     private void NumberSixButton_Click(object sender, RoutedEventArgs e) 
     { 
      CalculationWindow.Text = CalculationWindow.Text + "6"; 
     } 

     private void NumberSevenButton_Click(object sender, RoutedEventArgs e) 
     { 
      CalculationWindow.Text = CalculationWindow.Text + "7"; 
     } 

XML

<Window x:Class="CalculatorApplication.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:CalculatorApplication" 
    mc:Ignorable="d" 
    Title="Calculator" Height="480" Width="350" ResizeMode="NoResize"> 
<Grid> 
    <Grid.RowDefinitions> 
     <RowDefinition Height="25"/> 
     <RowDefinition Height="85"/> 
     <RowDefinition Height="65"/> 
     <RowDefinition Height="65"/> 
     <RowDefinition Height="65"/> 
     <RowDefinition Height="65"/> 
     <RowDefinition Height="80"/> 
    </Grid.RowDefinitions> 
    <Menu Grid.Row="0"> 
     <MenuItem Header="File"> 
      <MenuItem Header="Save to file"/> 
     </MenuItem> 
      <MenuItem Header="Median"/> 
     <MenuItem Header="Fibonacci Sequence"/> 
    </Menu> 
    <TextBox x:Name="CalculationWindow" TextAlignment="Right" FontSize="29.333" Grid.ColumnSpan="2" HorizontalAlignment="Right" Height="70" Margin="15,15,15,0" Grid.Row="1" VerticalAlignment="Center" Width="310" FontWeight="Bold"/> 
    <Button x:Name="BackspaceButton" Content="⌫" FontSize="20" HorizontalAlignment="Left" Margin="15,15,0,0" Grid.Row="2" VerticalAlignment="Top" Width="50" Height="50" Click="BackspaceButton_Click"/> 
     <Button x:Name="NumberSevenButton" Content="7" HorizontalAlignment="Left" Margin="15,15,0,0" Grid.Row="3" VerticalAlignment="Top" Width="50" Height="50" Click="NumberSevenButton_Click"/> 
    <Button x:Name="NumberFourButton" Content="4" HorizontalAlignment="Left" Margin="15,15,0,0" Grid.Row="4" VerticalAlignment="Top" Width="50" Height="50" Click="NumberFourButton_Click"/> 
    <Button x:Name="NumberOneButton" Content="1" HorizontalAlignment="Left" Margin="15,15,0,0" Grid.Row="5" VerticalAlignment="Top" Width="50" Height="50" Click="NumberOneButton_Click"/> 
    <Button x:Name="NumberZeroButton" Content="0" HorizontalAlignment="Left" Margin="15,15,0,0" Grid.Row="6" VerticalAlignment="Top" Width="115" Height="50" Click="NumberZeroButton_Click"/> 
    <Button x:Name="CButton" Content="C" HorizontalAlignment="Left" Margin="80,15,0,0" Grid.Row="2" VerticalAlignment="Top" Width="115" Height="50" Click="CButton_Click"/> 
    <Button x:Name="NumberEightButton" Content="8" HorizontalAlignment="Left" Margin="80,15,0,0" Grid.Row="3" VerticalAlignment="Top" Width="50" Height="50" Click="NumberEightButton_Click"/> 
    <Button x:Name="NumberFiveButton" Content="5" HorizontalAlignment="Left" Margin="80,15,0,0" Grid.Row="4" VerticalAlignment="Top" Width="50" Height="50" Click="NumberFiveButton_Click"/> 
    <Button x:Name="NumberTwoButton" Content="2" HorizontalAlignment="Left" Margin="80,15,0,0" Grid.Row="5" VerticalAlignment="Top" Width="50" Height="50" Click="NumberTwoButton_Click"/> 
    <Button x:Name="NumberNineButton" Content="9" HorizontalAlignment="Left" Margin="145,15,0,0" Grid.Row="3" VerticalAlignment="Top" Width="50" Height="50" Click="NumberNineButton_Click"/> 
    <Button x:Name="NumberSixButton" Content="6" HorizontalAlignment="Left" Margin="145,15,0,0" Grid.Row="4" VerticalAlignment="Top" Width="50" Height="50" Click="NumberSixButton_Click"/> 
    <Button x:Name="NumberThreeButton" Content="3" HorizontalAlignment="Left" Margin="145,15,0,0" Grid.Row="5" VerticalAlignment="Top" Width="50" Height="50" Click="NumberThreeButton_Click"/> 
    <Button x:Name="CommaButton" Content="," HorizontalAlignment="Left" Margin="145,15,0,0" Grid.Row="6" VerticalAlignment="Top" Width="50" Height="50" Click="CommaButton_Click"/> 
    <Button x:Name="PlusMinusButton" Content="±" HorizontalAlignment="Left" Margin="210,15,0,0" Grid.Row="2" VerticalAlignment="Top" Width="50" Height="50" Click="PlusMinusButton_Click"/> 
    <Button x:Name="DivisionButton" Content="/" HorizontalAlignment="Left" Margin="210,15,0,0" Grid.Row="3" VerticalAlignment="Top" Width="50" Height="50" Click="DivisionButton_Click"/> 
    <Button x:Name="MultiplicationButton" Content="*" HorizontalAlignment="Left" Margin="210,15,0,0" Grid.Row="4" VerticalAlignment="Top" Width="50" Height="50" Click="MultiplicationButton_Click"/> 
    <Button x:Name="SubstractionButton" Content="-" HorizontalAlignment="Left" Margin="210,15,0,0" Grid.Row="5" VerticalAlignment="Top" Width="50" Height="50" Click="SubstractionButton_Click"/> 
    <Button x:Name="AdditionButton" Content="+" HorizontalAlignment="Left" Margin="210,15,0,0" Grid.Row="6" VerticalAlignment="Top" Width="50" Height="50" Click="AdditionButton_Click"/> 
    <Button x:Name="SqrtButton" Content="√" HorizontalAlignment="Left" Margin="275,15,0,0" Grid.Row="2" VerticalAlignment="Top" Width="50" Height="50" Click="SqrtButton_Click"/> 
    <Button x:Name="PercetangeButton" Content="%" HorizontalAlignment="Left" Margin="275,15,0,0" Grid.Row="3" VerticalAlignment="Top" Width="50" Height="50" Click="PercetangeButton_Click"/> 
    <Button x:Name="ReciprocalButton" Content="1/x" HorizontalAlignment="Left" Margin="275,15,0,0" Grid.Row="4" VerticalAlignment="Top" Width="50" Height="50" Click="ReciprocalButton_Click"/> 
    <Button x:Name="ResultButton" Grid.RowSpan="2" Content="=" HorizontalAlignment="Left" Margin="275,15,0,0" Grid.Row="5" VerticalAlignment="Top" Width="50" Height="115" Click="ResultButton_Click"/> 
</Grid> 

Answer 1

：

private OtherClass otherClass; 
public MainWindow(OtherClass otherClass) 
    { 
     InitializeComponent(); 
     this.otherClass = otherClass; 
    } 

MainWindow.xaml.csのどこでも参照できます