Use BinaryFormatter for Save All Details of Conversion

The objective of BinaryFormatter are Serializes and Deserializes an object, or an entire graph of connected objects, in binary format.

Case: I try to save double value (after calculation) to file, but after read back that value and then compare both value, i get difference values.

Below are the part of code:

double d1 = 0.1 + 0.2 + 0.3;

//Write value to text file

StreamWriter writer = new StreamWriter("outTest1", false);

writer.WriteLine(d1);

writer.Close();

//Read value back from text file

StreamReader reader = new StreamReader("outTest1");

string str = reader.ReadLine();

reader.Close();

double d2 = Double.Parse(str);

//Compare values

if (d1 != d2)

{

    Console.WriteLine("d1 != d2");

    Console.WriteLine("Difference = " + (d1 - d2));

}

else

    Console.WriteLine("d1 == d2");

Console.WriteLine("d1: " + d1.ToString());

Console.WriteLine("d2: " + d2.ToString());

So, what the solution for that case? Use BinaryFormatter to solve that.

Below are the part of code:

FileStream fileStream = null;

BinaryFormatter binaryFormatter = new BinaryFormatter();

double d1 = 0.1 + 0.2 + 0.3;

//Serialize value instance to file

fileStream = new FileStream("outTest3", FileMode.Create);

binaryFormatter.Serialize(fileStream, d1);

fileStream.Close();

//Deserialize value instance from file

fileStream = new FileStream("outTest3", FileMode.Open);

double d2 = Convert.ToDouble(binaryFormatter.Deserialize(fileStream));

fileStream.Close();

//Compare values

if (d1 != d2)

{

    Console.WriteLine("d1 != d2");

    Console.WriteLine("Difference = " + (d1 - d2));

}

else

    Console.WriteLine("d1 == d2");

Console.WriteLine("d1: " + d1.ToString());

Console.WriteLine("d2: " + d2.ToString());

For safety code, specially when call Serialize or Deserialize, put on try catch block; and on catch block use SerializationException.