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Retrieving the selection of an OpenFileDialog

<UserControl x:Class='SilverlightApplication3.MainPage'     xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'      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='640' d:DesignHeight='480'>     <Grid x:Name="LayoutRoot" Background="White">         <Button x:Name="myButton" Content="Launch File Dialog" Height="30" Width="120" Click="myButton_Click" />     </Grid> </UserControl> //File: Page.xaml.cs using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using System.Windows.Browser; namespace SilverlightApplication3 {     public partial class MainPage : UserControl     {         public MainPage()         {             InitializeComponent();         }         private void myButton_Click(object sender, RoutedEventArgs e)         {             OpenFileDialog openFileDialog = new OpenFileDialog();             openFileDialog.Filter = "Text files (*.txt)|*.txt|Xml Files (*.xml)|*.xml";             bool? fileWasSelected = openFileDialog.ShowDialog();             if (fileWasSelected == true)             {                 FileInfo fileInfo = openFileDialog.File;                                     StreamReader reader = fileInfo.OpenText();                 HtmlWindow window = HtmlPage.Window;                 window.Alert(reader.ReadToEnd());             }         }     } }