в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:20:32Z

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==Use BinaryFormatter to Serialize an object to file==

<source lang="csharp">using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
[Serializable]
class Employee
{
private int Number;
private string FirstName;
private string LastName;
public void WriteEmployee(){
Console.WriteLine("Number: " + this.Number);
Console.WriteLine("FirstName: " + this.FirstName);
Console.WriteLine("LastName: " + this.LastName);
}
public Employee(int newNumber, string newFirstName, string LastName){
this.Number = newNumber;
this.FirstName = newFirstName;
this.LastName = LastName;
}
}
class MainClass
{
public static void Main()
{
Employee emp = new Employee(1, "X", "F");
emp.WriteEmployee();
FileStream serializeStream = new FileStream("c:\\test.dat", FileMode.Create);
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(serializeStream, emp);
serializeStream.Flush();
serializeStream.Close();
FileStream retrieveStream = new FileStream("c:\\test.dat", FileMode.Open);
Employee NewEmployee = (Employee) bf.Deserialize(retrieveStream);
NewEmployee.WriteEmployee();
}
}</source>
<pre class=codeResult>Number: 1
FirstName: X
LastName: F
Number: 1
FirstName: X
LastName: F</pre>

==Use BinaryFormatter to serialize user defined class==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
[Serializable]
public class Product {
public long Id;
public string Name;
public double Price;
[NonSerialized]
string Notes;
public Product(long id, string name, double price, string notes) {
Id = id;
Name = name;
Price = price;
Notes = notes;
}
public override string ToString() {
return string.Format("{0}: {1} (${2:F2}) {3}", Id, Name, Price, Notes);
}
}
class Program {
static void Main(string[] args) {
List<Product> products = new List<Product>();
products.Add(new Product(1, "A", 1000.0, "s"));
products.Add(new Product(2, "B", 25.0, "T"));
products.Add(new Product(4, "C", 12.0, "k"));
foreach (Product product in products) {
Console.WriteLine(product);
}
IFormatter serializer = new BinaryFormatter();
FileStream saveFile = new FileStream("Products.bin", FileMode.Create, FileAccess.Write);
serializer.Serialize(saveFile, products);
saveFile.Close();
FileStream loadFile =new FileStream("Products.bin", FileMode.Open, FileAccess.Read);
List<Product> savedProducts = serializer.Deserialize(loadFile) as List<Product>;
loadFile.Close();
foreach (Product product in savedProducts) {
Console.WriteLine(product);
}
}
}</source>

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в 15:31, 26 мая 2010

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