testapp: Add label and use Units.NET dependency to set text

Author: angularsen

UnitsNet.TestApps/UWP/MainPage.xaml

@@ -8,5 +8,6 @@
     mc:Ignorable="d">
 
     <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+        <TextBlock x:Name="MyTextBlock" Text="REPLACE ME" FontSize="30" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock>
     </Grid>
 </Page>

UnitsNet.TestApps/UWP/MainPage.xaml.cs

@@ -1,19 +1,6 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Runtime.InteropServices.WindowsRuntime;
-using Windows.Foundation;
-using Windows.Foundation.Collections;
-using Windows.UI.Xaml;
-using Windows.UI.Xaml.Controls;
-using Windows.UI.Xaml.Controls.Primitives;
-using Windows.UI.Xaml.Data;
-using Windows.UI.Xaml.Input;
-using Windows.UI.Xaml.Media;
-using Windows.UI.Xaml.Navigation;
-
-// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409
+using Windows.UI.Xaml.Controls;
+using UnitsNet;
+using UnitsNet.Units;
 
 namespace UWP
 {
@@ -22,9 +9,24 @@ namespace UWP
     /// </summary>
     public sealed partial class MainPage : Page
     {
+        /// <summary>
+        ///     Example of public property returning WinRT component compatible type.
+        /// </summary>
+        public Temperature MyTemperature { get; set; }
+
         public MainPage()
         {
-            this.InitializeComponent();
+            InitializeComponent();
+
+            // Test some variations, From() constructors, Parse(), As()
+            string celsius = Temperature.FromDegreesCelsius(100).ToString(TemperatureUnit.DegreeCelsius);
+            string fahrenheit = Temperature.Parse("100 °C").ToString(TemperatureUnit.DegreeFahrenheit);
+            string kelvin = Temperature.FromDegreesCelsius(Temperature.Parse(fahrenheit).As(TemperatureUnit.DegreeCelsius)).ToString(TemperatureUnit.Kelvin);
+
+            // Arithmetic operators not allowed in WinRT Components, but SHOULD be allowed in UWP C# apps
+            // new Temperature(5) + new Temperature(6)
+
+            MyTextBlock.Text = $"{celsius} = {fahrenheit} = {kelvin}";
         }
     }
 }