MVVM Example 1 with out Model and ViewModel

Please watch tutorial for complete detail:

	<?xml version="1.0" encoding="utf-8" ?>
	<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
	xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
	xmlns:local="clr-namespace:MvvmExample1"
	xmlns:sys="clr-namespace:System;assembly=mscorlib"
	x:Class="MvvmExample1.MainPage">
	<!--It is a program with out view model-->
	<!--Here’s a program that defines an XML namespace declaration for the System namespace:-->
	<StackLayout BindingContext="{x:Static sys:DateTime.Now}"
	HorizontalOptions="Center"
	VerticalOptions="Center">
	<!--The program can use x:Static to obtain the current date and time from the static DateTime.Now property
	and set that DateTime value to the BindingContext on a StackLayout-->
	<Label Text="{Binding Year, StringFormat='The year is {0}'}" />
	<Label Text="{Binding StringFormat='The month is {0:MMMM}'}" />
	<!--DateTime value itself is used for the StringFormat-->
	<Label Text="{Binding Day, StringFormat='The day is {0}'}" />
	<Label Text="{Binding StringFormat='The time is {0:T}'}" />
	</StackLayout>
	</ContentPage>
	<!--the big problem is that the date and time are set once when the page is first built, and never change:-->

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