5 replies to this topic

[scottk]

Here is an example of serialization and deserialization of business objects. This example writes the xml out to a file:

  public class InventoryItem

  {

    public string ItemName { get; set; }

    public string ItemNumber { get; set; }

    public decimal Price { get; set; }

    public int QtyOnHand { get; set; }

    public InventoryItem()

    {

    }

    public static void Save(List<InventoryItem> List, string FileName)

    {

      //create a backup

      string backupName = Path.ChangeExtension(FileName, ".old");

      if (File.Exists(FileName))

      {

        if (File.Exists(backupName))

          File.Delete(backupName);

        File.Move(FileName, backupName);

      }


      using (FileStream fs = new FileStream(FileName, FileMode.Create))

      {

        XmlSerializer ser = new XmlSerializer(typeof(List<InventoryItem>));

        ser.Serialize(fs, List);

        fs.Flush();

        fs.Close();

      }

    }

    public static List<InventoryItem> Load(string FileName)

    {

      if (!File.Exists(FileName))

        throw new FileNotFoundException("The inventory file could not be found", FileName);


      List<InventoryItem> result;


      using (FileStream fs = new FileStream(FileName, FileMode.Open))

      {

        XmlSerializer ser = new XmlSerializer(typeof(List<InventoryItem>));

        result = (List<InventoryItem>)ser.Deserialize(fs);

      }

      return result;

    }

  }

[scottk]

Ah, I did miss the code snippet forum! Thanks for cleaning up behind me -- I'll make sure to get future posts in the right forum.

Thanks

[John]

What are business objects? Is that a special type of object or just a name you made up for this object?

[scottk]

Neither, it is a concept: Business object (computer science) - Wikipedia, the free encyclopedia

[edit]Well I guess that would be considered a special type of object[/edit]

[John]

Interesting. +rep for teaching me something. :)