Смена элементов по кнопке

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 WpfApp5
{
  /// <summary>
  /// Логика взаимодействия для MainWindow.xaml
  /// </summary>
  public partial class MainWindow : Window
  {
    public MainWindow()
    {
      InitializeComponent();
    }
 
    private double ConvertToDouble(string number)
    {
      bool rightValue = false;
      if (rightValue == double.TryParse(number, out double result))
      {
        MessageBox.Show("Invalid value");
      }
      else
      {
        // TODO exception 
      }
      return result;
    }
 
    private void MenuItem_Click(object sender, RoutedEventArgs e)
    {
      MenuItem menuItem = (MenuItem)sender;
    }
 
    private void Ogz_Click(object sender, RoutedEventArgs e)
    {
      //OGZ ogz = new OGZ();
      //ogz.
    }
 
    private void PGZ_Click(object sender, RoutedEventArgs e)
    {
 
    }
 
    private void COR_Click(object sender, RoutedEventArgs e)
    {
 
      MessageBox.Show("ff");
    }
 
    private void PickCount_TextChanged(object sender, TextChangedEventArgs e)
    {
 
    }
 
    //private void PickCount_KeyUp(object sender, KeyEventArgs e)
    //{
    //  if (e.IsUp == (e.Key == Key.Enter))
    //  {
    //    MessageBox.Show("Тест");//здесь количество вершин
    //    Area area = new Area();
    //    int.TryParse(PickCount.Text, out int peaks);
    //    //area.Peaks = peaks;
    //    //area.
    //  }
    //}
 
 
    private double t1A;
    private double t2A;
    private double t1B;
    private double t2B;
 
    private void OGZRes_Click(object sender, RoutedEventArgs e)
    {
      double firstPointA = ConvertToDouble(T1A.Text);
      t1A = firstPointA;
      double secondPointA = ConvertToDouble(T2A.Text);
      t2A = secondPointA;
      double firstPointB = ConvertToDouble(T1B.Text);
      t1B = firstPointB;
      double secondPointB = ConvertToDouble(T2B.Text);
      t2B = secondPointB;
      OGZ ogz = new OGZ(t1A, t2A, t1B, t2B);
      ogz.CalcOGZ();
      OGZRumb.Clear();
      OGZGorizont.Clear();
      OGZRumb.Text = Convert.ToString(ogz.RumbRes);
      OGZGorizont.Text = Convert.ToString(ogz.Gorizont);
    }
 
 
  }
}

<Window x:Class="WpfApp5.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:WpfApp5"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
 
    <Grid Background="#FFAE7575">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="779*"/>
            <ColumnDefinition Width="13*"/>
        </Grid.ColumnDefinitions>
        <Menu HorizontalAlignment="Left" Height="24" VerticalAlignment="Top" Width="285">
            <MenuItem x:Name="Type" Header="Выбрать задачу" Click="MenuItem_Click">
                <Button x:Name="PGZ" Content="Прямая Геодезическая Задача" Click="PGZ_Click" />
                <Button x:Name="Ogz" Content="Обратная Геодезическая Задача" Click="Ogz_Click"/>
                <Button x:Name="COR" Content="Площадь по координата вершин" Click="COR_Click"/>
 
            </MenuItem>
        </Menu>
        <TextBox x:Name="T1A" HorizontalAlignment="Left" Height="23" Margin="40,85,0,0" TextWrapping="Wrap" Text="Точка 1A" VerticalAlignment="Top" Width="120"/>
        <TextBox x:Name="T2A" HorizontalAlignment="Left" Height="23" Margin="272,85,0,0" TextWrapping="Wrap" Text="Точка 2A" VerticalAlignment="Top" Width="120"/>
        <TextBox x:Name="T1B" HorizontalAlignment="Left" Height="23" Margin="40,145,0,0" TextWrapping="Wrap" Text="Точка 1B" VerticalAlignment="Top" Width="120"/>
        <TextBox x:Name="T2B" HorizontalAlignment="Left" Height="23" Margin="272,145,0,0" TextWrapping="Wrap" Text="Точка 2B" VerticalAlignment="Top" Width="120"/>
        <Button x:Name="OGZRes" Content="Расчет" HorizontalAlignment="Left" Margin="177,205,0,0" VerticalAlignment="Top" Width="75" Click="OGZRes_Click"/>
        <TextBox x:Name="OGZRumb" HorizontalAlignment="Left" Height="23" Margin="40,248,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <TextBox x:Name="OGZGorizont" HorizontalAlignment="Left" Height="23" Margin="272,248,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120"/>
        <Label Content="Румб" HorizontalAlignment="Left" Margin="40,278,0,0" VerticalAlignment="Top" Width="120"/>
        <Label Content="Горизонт" HorizontalAlignment="Left" Margin="272,278,0,0" VerticalAlignment="Top" Width="120"/>
    </Grid>
</Window>