Using the * wildcard character

    
<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="Query Isolated Storage" Click="myButton_Click" Height="40" Width="160" />
    </Grid>
</UserControl>

//File: Page.cs
using System;
using System.Collections.Generic;
using System.IO.IsolatedStorage;
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)
        {
            using (IsolatedStorageFile isoFile = IsolatedStorageFile.GetUserStoreForApplication())
            {
                CreateIsoStore(isoFile);

                string[] results1 = isoFile.GetFileNames("*");
                string[] results2 = isoFile.GetFileNames("Directory1/*");
                string[] results3 = isoFile.GetFileNames("textfile*");
                string[] results4 = isoFile.GetFileNames("*.txt");

                HtmlWindow window = HtmlPage.Window;
                Console.WriteLine(results1.Length);
                Console.WriteLine(results2.Length);
                Console.WriteLine(results3.Length);
                Console.WriteLine(results4.Length);
            }
        }

        private void CreateIsoStore(IsolatedStorageFile isoFile)
        {
            isoFile.CreateDirectory("Directory1");

            IsolatedStorageFileStream textfile2 = isoFile.CreateFile("textfile2.xml");
            textfile2.Close();

            IsolatedStorageFileStream textfile1 = isoFile.CreateFile("textfile1.txt");
            textfile1.Close();

            IsolatedStorageFileStream testfile1 = isoFile.CreateFile("testfile1.txt");
            testfile1.Close();

            IsolatedStorageFileStream nestedFile = isoFile.CreateFile("file1.txt");
            nestedFile.Close();
        }
    }
}

Related examples in the same category

1.	IsolatedStorage Demo
2.	Removing items from the isolated storage area
3.	Creating a directory within the isolated storage area
4.	Creating subdirectories within the isolated storage area
5.	Creating a file quota bar associated with the user's isolated storage area
6.	Asks the user if the Silverlight application can double the amount of available isolated storage.
7.	Creating a file within a user's isolated storage area
8.	Reading a file from a user's isolated storage area.
9.	Retrieving the isolated storage for a user

Using the * wildcard character : IsolatedStorage « Data « Silverlight

Related examples in the same category