TranslatorControl Class

<Page
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:C_SharpApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:Translator="using:Bing.Translator"
    x:Class="C_SharpApp.MainPage"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">

        <Translator:TranslatorControl x:Name="Translator2" ClientId="your Client ID" 
             ClientSecret="your Client Secret" LanguageFrom="en" LanguageTo="es" />
        <TextBox Text="{Binding TextToTranslate, ElementName=Translator2, Mode=TwoWay}" 
             x:Name="textbox1"/>
        <TextBox Text="{Binding TextTranslated, ElementName=Translator2}" />
        <TextBox Text="{Binding ErrorCode, ElementName=Translator2}" />
        <ComboBox x:Name="cbLanguages" SelectionChanged="cbLanguages_SelectionChanged" />
        <TextBox x:Name="LangTextBox" Text="" />
        <TextBlock>
        <Run Text="TextToTranslate" />
        <LineBreak/>
        <Run/>
        </TextBlock>
        <TextBlock Text="TextTranslated&#x9;" />
        <TextBlock >
        <Run Text="ErrorCode" />
        <LineBreak />
        <Run />
        </TextBlock>

    </Grid>
</Page>

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
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;

namespace C_SharpApp
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
            Initialize();
        }

        public async void Initialize()
        {
            // Get the list of supported languages.
            var result = await this.Translator2.TranslatorApi.GetLanguagesAsync();
            this.cbLanguages.ItemsSource = result.Languages;
        }

        private async void cbLanguages_SelectionChanged(
          object sender, SelectionChangedEventArgs e)
        {
            ComboBox b = sender as ComboBox;
            string lang = b.SelectedItem as string;

            // Get the names of the languages.
            this.LangTextBox.Text = string.Join(",", (
             await this.Translator2.TranslatorApi.GetLanguageNamesAsync(
             "en", new string[] { lang })).Languages);
        }
    }
}