Csharp/C Sharp/XML/Xml Serialization

Материал из .Net Framework эксперт
Версия от 11:34, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Serialize List of Objects

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization.Formatters.Soap;
using System.Xml.Serialization;
using System.Collections;
[Serializable]
public class Radio {
    public bool hasTweeters;
    public bool hasSubWoofers;
    public double[] stationPresets;
    [NonSerialized]
    public string radioID = "002";
}
[Serializable]
public class Car {
    public Radio theRadio = new Radio();
    public bool isHatchBack;
}
[Serializable, XmlRoot(Namespace = "http://www.yoursite.ru")]
public class MyCar : Car {
    public MyCar(bool SkyWorthy, bool SeaWorthy) {
        canFly = SkyWorthy;
        canSubmerge = SeaWorthy;
    }
    public MyCar() { }
    [XmlAttribute]
    public bool canFly;
    [XmlAttribute]
    public bool canSubmerge;
}
class Program {
    static void Main(string[] args) {
        MyCar jbc = new MyCar();
        jbc.canFly = true;
        jbc.canSubmerge = false;
        jbc.theRadio.stationPresets = new double[] { 89.3, 105.1, 97.1 };
        jbc.theRadio.hasTweeters = true;
        BinaryFormatter binFormat = new BinaryFormatter();
        Stream fStream = new FileStream("CarData.dat",FileMode.Create, FileAccess.Write, FileShare.None);
        binFormat.Serialize(fStream, jbc);
        fStream.Close();
        fStream = File.OpenRead("CarData.dat");
        MyCar carFromDisk =(MyCar)binFormat.Deserialize(fStream);
        fStream.Close();
        SoapFormatter soapForamt = new SoapFormatter();
        fStream = new FileStream("CarData.soap",FileMode.Create, FileAccess.Write, FileShare.None);
        soapForamt.Serialize(fStream, jbc);
        fStream.Close();
        XmlSerializer xmlForamt = new XmlSerializer(typeof(MyCar),new Type[] { typeof(Radio), typeof(Car) });
        fStream = new FileStream("CarData.xml",FileMode.Create, FileAccess.Write, FileShare.None);
        xmlForamt.Serialize(fStream, jbc);
        fStream.Close();
        ArrayList myCars = new ArrayList();
        myCars.Add(new MyCar(true, true));
        myCars.Add(new MyCar(true, false));
        myCars.Add(new MyCar(false, true));
        myCars.Add(new MyCar(false, false));
        fStream = new FileStream("CarCollection.xml",FileMode.Create, FileAccess.Write, FileShare.None);
        xmlForamt = new XmlSerializer(typeof(ArrayList),new Type[] { typeof(MyCar), typeof(Car), typeof(Radio) });
        xmlForamt.Serialize(fStream, myCars);
        fStream.Close();
    }
}


Set Xml Attribute when serilzation

using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using System.Xml.Serialization;
public class MainClass {
    public static void Main() {
        Product pd = new Product();
        pd.ProductID = 200;
        pd.CategoryID = 100;
        pd.Discontinued = false;
        pd.ProductName = "Serialize Objects";
        pd.QuantityPerUnit = "6";
        pd.ReorderLevel = 1;
        pd.SupplierID = 1;
        pd.UnitPrice = 1000;
        pd.UnitsInStock = 10;
        pd.UnitsOnOrder = 0;
        TextWriter tr = new StreamWriter("serialprod.xml");
        XmlSerializer sr = new XmlSerializer(typeof(Product));
        sr.Serialize(tr, pd);
        tr.Close();
    }
}
[System.Xml.Serialization.XmlRootAttribute()]
public class Product {
    private int prodId;
    private string prodName;
    private int suppId;
    private int catId;
    private string qtyPerUnit;
    private Decimal unitPrice;
    private short unitsInStock;
    private short unitsOnOrder;
    private short reorderLvl;
    private bool discont;
    private int disc;
    //added the Discount attribute
    [XmlAttributeAttribute(AttributeName = "Discount")]
    public int Discount {
        get { return disc; }
        set { disc = value; }
    }
    [XmlElementAttribute()]
    public int ProductID {
        get { return prodId; }
        set { prodId = value; }
    }
    [XmlElementAttribute()]
    public string ProductName {
        get { return prodName; }
        set { prodName = value; }
    }
    [XmlElementAttribute()]
    public int SupplierID {
        get { return suppId; }
        set { suppId = value; }
    }
    [XmlElementAttribute()]
    public int CategoryID {
        get { return catId; }
        set { catId = value; }
    }
    [XmlElementAttribute()]
    public string QuantityPerUnit {
        get { return qtyPerUnit; }
        set { qtyPerUnit = value; }
    }
    [XmlElementAttribute()]
    public Decimal UnitPrice {
        get { return unitPrice; }
        set { unitPrice = value; }
    }
    [XmlElementAttribute()]
    public short UnitsInStock {
        get { return unitsInStock; }
        set { unitsInStock = value; }
    }
    [XmlElementAttribute()]
    public short UnitsOnOrder {
        get { return unitsOnOrder; }
        set { unitsOnOrder = value; }
    }
    [XmlElementAttribute()]
    public short ReorderLevel {
        get { return reorderLvl; }
        set { reorderLvl = value; }
    }
    [XmlElementAttribute()]
    public bool Discontinued {
        get { return discont; }
        set { discont = value; }
    }
}

public class Inventory {
    private Product[] stuff;
    public Inventory() { }
    [XmlArrayItem("Prod", typeof(Product)),
    XmlArrayItem("Book", typeof(BookProduct))]
    public Product[] InventoryItems {
        get { return stuff; }
        set { stuff = value; }
    }
}
public class BookProduct : Product {
    private string isbnNum;
    public BookProduct() { }
    public string ISBN {
        get { return isbnNum; }
        set { isbnNum = value; }
    }
}


Use XML Serialization with Custom Objects

using System;
using System.IO;
using System.Xml;
using System.Xml.Serialization;
[XmlRoot("productCatalog")]
class ProductCatalog {
    [XmlElement("catalogName")]
    public string CatalogName;
    [XmlElement(ElementName = "expiryDate", DataType = "date")]
    public DateTime ExpiryDate;
    [XmlArray("products")]
    [XmlArrayItem("product")]
    public Product[] Products;
    public ProductCatalog() { }
    public ProductCatalog(string catalogName, DateTime expiryDate) {
        this.CatalogName = catalogName;
        this.ExpiryDate = expiryDate;
    }
}
public class Product {
    [XmlElement("productName")]
    public string ProductName;
    [XmlElement("productPrice")]
    public decimal ProductPrice;
    [XmlElement("inStock")]
    public bool InStock;
    [XmlAttributeAttribute(AttributeName = "id", DataType = "integer")]
    public string Id;
    public Product() {}
    public Product(string productName, decimal productPrice) {
        this.ProductName = productName;
        this.ProductPrice = productPrice;
    }
}

public class MainClass {
    private static void Main() {
        ProductCatalog catalog = new ProductCatalog("New Catalog", DateTime.Now.AddYears(1));
        Product[] products = new Product[2];
        products[0] = new Product("Product 1", 42.99m);
        products[1] = new Product("Product 2", 202.99m);
        catalog.Products = products;
        XmlSerializer serializer = new XmlSerializer(typeof(ProductCatalog));
        FileStream fs = new FileStream("ProductCatalog.xml", FileMode.Create);
        serializer.Serialize(fs, catalog);
        fs.Close();
        catalog = null;
        fs = new FileStream("ProductCatalog.xml", FileMode.Open);
        catalog = (ProductCatalog)serializer.Deserialize(fs);
        serializer.Serialize(Console.Out, catalog);
    }
}


Use XmlSerializer

using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using System.Xml.Serialization;
public class MainClass {      //new products object
    public static void Main() {
        Product newPd;
        FileStream f = new FileStream("serialprod.xml", FileMode.Open);
        XmlSerializer newSr = new XmlSerializer(typeof(Product));
        newPd = (Product)newSr.Deserialize(f);
        f.Close();
    }
}
[System.Xml.Serialization.XmlRootAttribute()]
public class Product {
    private int prodId;
    private string prodName;
    private int suppId;
    private int catId;
    private string qtyPerUnit;
    private Decimal unitPrice;
    private short unitsInStock;
    private short unitsOnOrder;
    private short reorderLvl;
    private bool discont;
    private int disc;
    [XmlAttributeAttribute(AttributeName = "Discount")]
    public int Discount {
        get { return disc; }
        set { disc = value; }
    }
    [XmlElementAttribute()]
    public int ProductID {
        get { return prodId; }
        set { prodId = value; }
    }
    [XmlElementAttribute()]
    public string ProductName {
        get { return prodName; }
        set { prodName = value; }
    }
    [XmlElementAttribute()]
    public int SupplierID {
        get { return suppId; }
        set { suppId = value; }
    }
    [XmlElementAttribute()]
    public int CategoryID {
        get { return catId; }
        set { catId = value; }
    }
    [XmlElementAttribute()]
    public string QuantityPerUnit {
        get { return qtyPerUnit; }
        set { qtyPerUnit = value; }
    }
    [XmlElementAttribute()]
    public Decimal UnitPrice {
        get { return unitPrice; }
        set { unitPrice = value; }
    }
    [XmlElementAttribute()]
    public short UnitsInStock {
        get { return unitsInStock; }
        set { unitsInStock = value; }
    }
    [XmlElementAttribute()]
    public short UnitsOnOrder {
        get { return unitsOnOrder; }
        set { unitsOnOrder = value; }
    }
    [XmlElementAttribute()]
    public short ReorderLevel {
        get { return reorderLvl; }
        set { reorderLvl = value; }
    }
    [XmlElementAttribute()]
    public bool Discontinued {
        get { return discont; }
        set { discont = value; }
    }
}

public class Inventory {
    private Product[] stuff;
    public Inventory() { }
    [XmlArrayItem("Prod", typeof(Product)),
    XmlArrayItem("Book", typeof(BookProduct))]
    public Product[] InventoryItems {
        get { return stuff; }
        set { stuff = value; }
    }
}
public class BookProduct : Product {
    private string isbnNum;
    public BookProduct() { }
    public string ISBN {
        get { return isbnNum; }
        set { isbnNum = value; }
    }
}


XmlRootAttribute

using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using System.Xml.Serialization;
public class MainClass {      //new products object
    public static void Main() {
        XmlAttributes attrs = new XmlAttributes();
        attrs.XmlElements.Add(new XmlElementAttribute("Book", typeof(BookProduct)));
        attrs.XmlElements.Add(new XmlElementAttribute("Product", typeof(Product)));
        XmlAttributeOverrides attrOver = new XmlAttributeOverrides();
        attrOver.Add(typeof(Inventory), "InventoryItems", attrs);
        Product newProd = new Product();
        BookProduct newBook = new BookProduct();
        newProd.ProductID = 100;
        newProd.ProductName = "Product";
        newProd.SupplierID = 10;
        newBook.ProductID = 101;
        newBook.ProductName = "New Product";
        newBook.SupplierID = 10;
        newBook.ISBN = "123456789";
        Product[] addProd = { newProd, newBook };
        Inventory inv = new Inventory();
        inv.InventoryItems = addProd;
        TextWriter tr = new StreamWriter("inventory.xml");
        XmlSerializer sr = new XmlSerializer(typeof(Inventory), attrOver);
        sr.Serialize(tr, inv);
        tr.Close();
    }
}
[System.Xml.Serialization.XmlRootAttribute()]
public class Product {
    private int prodId;
    private string prodName;
    private int suppId;
    private int catId;
    private string qtyPerUnit;
    private Decimal unitPrice;
    private short unitsInStock;
    private short unitsOnOrder;
    private short reorderLvl;
    private bool discont;
    private int disc;
    [XmlAttributeAttribute(AttributeName = "Discount")]
    public int Discount {
        get { return disc; }
        set { disc = value; }
    }
    [XmlElementAttribute()]
    public int ProductID {
        get { return prodId; }
        set { prodId = value; }
    }
    [XmlElementAttribute()]
    public string ProductName {
        get { return prodName; }
        set { prodName = value; }
    }
    [XmlElementAttribute()]
    public int SupplierID {
        get { return suppId; }
        set { suppId = value; }
    }
    [XmlElementAttribute()]
    public int CategoryID {
        get { return catId; }
        set { catId = value; }
    }
    [XmlElementAttribute()]
    public string QuantityPerUnit {
        get { return qtyPerUnit; }
        set { qtyPerUnit = value; }
    }
    [XmlElementAttribute()]
    public Decimal UnitPrice {
        get { return unitPrice; }
        set { unitPrice = value; }
    }
    [XmlElementAttribute()]
    public short UnitsInStock {
        get { return unitsInStock; }
        set { unitsInStock = value; }
    }
    [XmlElementAttribute()]
    public short UnitsOnOrder {
        get { return unitsOnOrder; }
        set { unitsOnOrder = value; }
    }
    [XmlElementAttribute()]
    public short ReorderLevel {
        get { return reorderLvl; }
        set { reorderLvl = value; }
    }
    [XmlElementAttribute()]
    public bool Discontinued {
        get { return discont; }
        set { discont = value; }
    }
}
public class Inventory {
    private Product[] stuff;
    public Inventory() { }
    [XmlArrayItem("Prod", typeof(Product)),
    XmlArrayItem("Book", typeof(BookProduct))]
    public Product[] InventoryItems {
        get { return stuff; }
        set { stuff = value; }
    }
}
public class BookProduct : Product {
    private string isbnNum;
    public BookProduct() { }
    public string ISBN {
        get { return isbnNum; }
        set { isbnNum = value; }
    }
}