I go to the MSDN to search the singleton serialization, and find the source code http://msdn.microsoft.com/en-us/library/system.runtime.serialization.serializationinfo.aspx
but I had problems when I changed some part of the code. I divide it into two program : serialization and deserialization. Below is the Main function of the two(other classes are in the msdn documentation, link is at the second line).
Serialization program is below:
public static void Main()
{
FileStream fs = new FileStream("DataFile.dat", FileMode.Create);
try
{
// Construct a BinaryFormatter and use it
// to serialize the data to the stream.
BinaryFormatter formatter = new BinaryFormatter();
// Create an array with multiple elements refering to
// the one Singleton object.
Singleton[] a1 = { Singleton.GetSingleton(), Singleton.GetSingleton() };
a1[0].SomeNumber = 555;
formatter.Serialize(fs, a1);
}
catch (SerializationException e)
{
Console.WriteLine("Failed to serialize. Reason: " + e.Message);
throw;
}
finally
{
fs.Close();
}
}
Deserialization program:
public static void Main()
{
FileStream fs = new FileStream("DataFile.dat", FileMode.Open);
try
{
// Construct a BinaryFormatter and use it
// to serialize the data to the stream.
BinaryFormatter formatter = new BinaryFormatter();
Singleton[] a2 = (Singleton[]) formatter.Deserialize(fs);
// This displays "True".
Console.WriteLine(a2[0].SomeNumber);
}
catch (SerializationException e)
{
Console.WriteLine("Failed to serialize. Reason: " + e.Message);
throw;
}
finally
{
fs.Close();
}
}
After I executed the two program, the console didn't print 555 but still 123, why? I can't figure it out and got stuck in it for the whole day, can anybody help me ?
Best Answer
I believe you will find many answers on this documentation : IObjectReference
Serializing
Singletons
never is really easy. But do you really have to serialize them, and then deserialize them ?Here is a code sample from the MSDN link I provided :