Создание приложений WPF

<Page x:Class="WpfApp5.Page2"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Page2"
    Loaded="Page_Loaded"
        >
    <StackPanel>
        <TextBlock TextAlignment="Center" FontSize="24">Страница 2</TextBlock>
        <TextBlock></TextBlock>
        <TextBlock>Приветствуем Вас дорогой </TextBlock>
        <Label Name="nameLabel"></Label>
        <TextBlock Margin="0,10">   <!--Отступ сверху-->
            <Hyperlink Click="LinkClicked">На страницу 3</Hyperlink>
        </TextBlock>
    </StackPanel>
</Page>

using System;
using System.Collections.Generic;
using System.Text;
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
{
    public partial class Page2 : Page
    {
        public Page2()
        {
            InitializeComponent();
        }
    
        string message;
        public string Message
        {
            set { message = value; }
        }
    
        private void Page_Loaded(object sender, RoutedEventArgs e)
        {
            nameLabel.Content = message;
        }
    
        private void LinkClicked(object sender, RoutedEventArgs e)
        {
            Page3 page3 = new Page3();
            this.NavigationService.Navigate(page3);
        }
    }
}

<Page x:Class="WpfApp5.Page3"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Page3">
    <StackPanel>
        <!--Заголовок контекста страницы-->
        <TextBlock TextAlignment="Center" FontSize="24">Страница 3
            <TextBlock.Margin>0,0,0,10</TextBlock.Margin>
        </TextBlock>
        
        <!--Первая кнопка-->
        <Button Content="Push Me!" FontSize="22" Height="50" Click="Button_Click">
            <Button.Effect>
                <DropShadowEffect />
            </Button.Effect>
        </Button>
        
        <!--Вторая кнопка-->
        <Button FontSize="22" Height="50" Margin="0,10" Click="Button_Click">
            Кликни меня
            <Button.Effect>
                <DropShadowEffect />
            </Button.Effect>
            <Button.Foreground>
                <LinearGradientBrush StartPoint="1,0" EndPoint="0,0">
                    <GradientStop Color="Red" Offset="0" />
                    <GradientStop Color="Orange" Offset=".17" />
                    <GradientStop Color="Yellow" Offset=".33" />
                    <GradientStop Color="Green" Offset=".5" />
                    <GradientStop Color="CornflowerBlue" Offset=".67" />
                    <GradientStop Color="Blue" Offset=".84" />
                    <GradientStop Color="BlueViolet" Offset="1" />
                </LinearGradientBrush>
            </Button.Foreground>
            <Button.Background>
                <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                    <GradientStop Color="Red" Offset="0" />
                    <GradientStop Color="Orange" Offset=".17" />
                    <GradientStop Color="Yellow" Offset=".33" />
                    <GradientStop Color="Green" Offset=".5" />
                    <GradientStop Color="CornflowerBlue" Offset=".67" />
                    <GradientStop Color="Blue" Offset=".84" />
                    <GradientStop Color="BlueViolet" Offset="1" />
                </LinearGradientBrush>
            </Button.Background>
        </Button>
    </StackPanel>
</Page>

private void Button_Click(object sender, RoutedEventArgs e)
        {
            Form1 frm = new Form1();
            frm.ShowInTaskbar = false;// Не показывать кнопку формы в панели задач
            frm.Show();
        }