using System;

using System.IO;

using System.IO.IsolatedStorage;

using System.Runtime.Serialization.Formatters.Binary;

namespace CabMaker

{

/// <summary>

/// Extension methods for working with isolated storage.

/// </summary>

public static class IsolatedStorageExtensions

{

/// <summary>

/// Saves an object to isolated storage.

/// </summary>

/// <param name="isoStorage">Isolated storage</param>

/// <param name="obj">Object to save</param>

/// <param name="fileName">File name to which object will be saved</param>

public static void SaveObject(this IsolatedStorage isoStorage, object obj, string fileName)

{

using (IsolatedStorageFileStream writeStream = new IsolatedStorageFileStream(fileName, FileMode.Create))

{

BinaryFormatter formatter = new BinaryFormatter();

formatter.Serialize(writeStream, obj);

}

}

/// <summary>

/// Reads an object from isolated storage.

/// </summary>

/// <typeparam name="T">Type of object to read</typeparam>

/// <param name="isoStorage">Isolated storage</param>

/// <param name="fileName">File name from which object will be loaded</param>

/// <returns>Object read from isolated storage (as type <typeparamref name="T"/>)</returns>

public static T LoadObject<T>(this IsolatedStorage isoStorage, string fileName)

{

try

{

using (IsolatedStorageFileStream readStream = new IsolatedStorageFileStream(fileName, FileMode.Open))

{

BinaryFormatter formatter = new BinaryFormatter();

try

{

T readData = (T)formatter.Deserialize(readStream);

return readData;

}

catch

{

return default(T);

}

}

}

catch (FileNotFoundException)

{

return default(T);

}

}

}

}