Opening Client-Side Files using Silverlight
Silverlight does not have direct access to the local file system for security reasons. However, you can still prompt the user to select a specific file to open using the OpenFileDialog similarly to how you do in .NET. Here’s some basic code that demonstrates opening a user specified file using Silverlight 2 Beta 1.
This basic example opens up a user specified file, and displays its contents within a textbox.
Page.xaml file
Page.xaml.cs file
using System.Windows;
using System.Windows.Controls;
using System.IO;
namespace SilverlightOpenFileTest
{
public partial class Page : UserControl
{
public Page()
{
InitializeComponent();
}
private void btnSelectFile_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog fileDialog = new OpenFileDialog();
// Show the Open File Dialog
DialogResult result = fileDialog.ShowDialog();
// Open the file if OK was clicked in the dialog
if (result == DialogResult.OK)
{
FileDialogFileInfo fi = fileDialog.SelectedFile;
Stream s = fi.OpenRead();
StreamReader reader = new StreamReader(s);
txtFile.Text = reader.ReadToEnd();
}
}
}
}
Now isn’t that simple? I wonder if they’ll ever add the SaveFileDialog…