Store Value at Application level in silverlight

we can use isolation level for storing the value at application level similar to session.

Example:

public static void SaveToIsolatedStorage( string fileName, object objectToSave )

{

    using ( IsolatedStorageFile file = IsolatedStorageFile.GetUserStoreForApplication() )

    {

        using ( IsolatedStorageFileStream stream = file.OpenFile( fileName, FileMode.Create ) )

        {

            XmlSerializer serializer = new XmlSerializer( objectToSave.GetType() );

            serializer.Serialize( stream, objectToSave );

        }

    }

}

 

public static T LoadFromIsolatedStorage<T>( string fileName ) where T : class

{

    if ( string.IsNullOrEmpty( fileName ) )

    {

        throw new ArgumentNullException( "fileName", "Cannot be null or empty." );

    }

 

    using ( IsolatedStorageFile file = IsolatedStorageFile.GetUserStoreForApplication() )

    {

        if ( file.FileExists( fileName ) )

        {

            using ( IsolatedStorageFileStream stream = file.OpenFile( fileName, FileMode.Open ) )

            {

                XmlSerializer serializer = new XmlSerializer( typeof( T ) );

                return serializer.Deserialize( stream ) as T;

            }

        }

 

        return default( T );

    }

}