MyCalanderHome/MyCalendarHome/MainWindow.axaml

<Window xmlns="https://github.com/avaloniaui"
        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"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="MyCalendarHome.MainWindow"
        Title="MyCalendarHome">
	<ScrollViewer>
		<StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" >
			<StackPanel Name="Choose">
				<Border Padding="30" Margin="0,0,0,0">
					<StackPanel>
						<TextBlock Classes="Error" Name="ErrorMassage" HorizontalAlignment="Center" Margin="0,0,0,10" >

						</TextBlock>
						<TextBlock FontWeight="Bold" Margin="0,0,0,10">
							Введите дату:
						</TextBlock>
						<DatePicker Name ="Calendar"></DatePicker>
						<Button Click="GetAndShowInform" HorizontalAlignment="Center" Margin="0,10,0,0" Content="Узнать все"/>
						<StackPanel Name="GG" Orientation="Horizontal" VerticalAlignment="Center">
							<TextBlock Name="Year" Margin="0,10,0,10">Года:</TextBlock>
						</StackPanel>
						<TextBlock Name="Month" Margin="0,0,0,10">
							Месяца:
						</TextBlock>
						<TextBlock Name="Day" Margin="0,0,0,10">
							Дни:
						</TextBlock>
						<TextBlock Name="DayWeek" Margin="0,0,0,10">
							День недели:
						</TextBlock>
						<TextBlock Name="CountDayWeek" Margin="0,0,0,10">
							Отпраздновал в этот же день:
						</TextBlock>
						<TextBlock Margin="0,0,0,10">
							Номера висакосных годов:
						</TextBlock>
						<TextBlock Name="LeapYear" Margin="0,0,0,10">
							
						</TextBlock>
						<StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" Orientation="Horizontal" >
						<Button Click="GetNameZodiac" Margin="0,10,20,0" Content="Знак зодиака"/>
						<Button Click="GetEastGoroskop" Margin="0,10,0,0" Content="Восточный гороскоп"/>
						</StackPanel>
						<TextBlock Name="NameZodiak" HorizontalAlignment="Center" Margin="0,10,0,0">

						</TextBlock>
						<TextBlock Name="EastGoroskop" HorizontalAlignment="Center" Margin="0,10,0,0">

						</TextBlock>
						<Button Click="WorkFile" HorizontalAlignment="Center" Margin="0,10,0,0" Content="Поработать с файлом"/>

					</StackPanel>
				</Border>
				
			</StackPanel>
		</StackPanel>
	</ScrollViewer>
</Window>